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Customer reviews

Rating 3.6 out of 5 stars with 255 reviews

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  • Value

    Rating 3.4 out of 5 stars

  • Quality

    Rating 3.3 out of 5 stars

  • Ease of Use

    Rating 3.5 out of 5 stars

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70%would recommend to a friend

Customers are saying

Customers love the adjustable dumbbell pair for its versatility, compact size, and space-saving design. They appreciate the wide weight range that allows them to customize their workouts and the ease of use. However, some customers have concerns about the durability of the product, the functionality of the app, and the stability of the Bluetooth connectivity.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 1 Showing 1-20 of 255 reviews
  • Rated 4 out of 5 stars

    Great Smartbells, but requires subscription

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Really amazing dumbells and wonderful design. Best adjustable dumbells I've used thus far. The fact that it's electric is something to consider when buying. If the lights go out, you won't be able to change the weight. But that's not a concern of mine. The weights change pretty quickly, about 5 seconds max to go from 12lbs to 50lbs. The only reason I'm giving it 4 stars instead of 5 is the fact that all the cool aspects like rep monitoring and stats require a $12/mo subscription to their app service. I guess I overlooked that when reading about this, but it was a bummer to see. I would understand a subscription to see their workouts, but to pay additionally for something that was the main selling point for an already expensive 'smartbell' (these ain't dumb) was very, very disappointing.

    I would recommend this to a friend
  • Pros mentioned:
    Weight range

    Rated 4 out of 5 stars

    Pretty good

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It’s a good dumbbell. The knurling is okay, not too passive or aggressive. It does change weight much slower than a lot of similar products like the nuobell and doesn’t go as heavy as something like loadable dumbbells. But it does do the middle of the road very well. It’s fast enough and heavy enough for me. I think PowerBlocks are a better value for just weight and ease, especially because you can upgrade them and add more weight but they don’t feel like a traditional dumbbell like these do. This does however offer other cool features that other non-digital products don’t.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    JAXJOX DUMBBELL

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great Product ! All your weights in one. Easy to load and un load weight.

    I would recommend this to a friend
  • Pros mentioned:
    Space saving

    Rated 5 out of 5 stars

    Space-saving!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My son loves these weights, and they take up much less space than a set of weights!

    I would recommend this to a friend
  • Pros mentioned:
    Adjustable, Compact, Easy to use
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Great for home workouts

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    JAXJOX DumbbellConnect™ - Adjustable Dumbbell Pair Included- 1 pair of JAXJOX adjustable dumbbells, 2 USB-C cords, 2 stands Especially with the pandemic happening, and our gyms closed and reopening multiple times, this set of JAXJOX Dumbbells are great for in home use when you can't hit your gym. They're small and compact for the range of weights which is great when you're tight on space. The dumbbells range in weight from 8-50 pounds. All you need to do is make sure they're set in the base, push the up or down arrow which adjusts the weight in increments of 6 pounds. Then the system will shorten or extend the bar and add or subtract the amount of weights set. Pair it with the JAXJOX app for the ultimate experience. It's very easy to use. You can build a personalized profile and then provides very helpful information- can make your own schedule, track your workouts, see your results, take coached classes to learn form and technique. There is also a Premium version that offers customized workouts - $13/mo. There is a 30 day free trial available. I like how they are convenient. You can work out right when you feel like it right where you are. The JAXJOX don't take up much space at all at about 30.5" x 9.5" x 21". The design is very simple and is very easy to use. I like the adjustability and variety of the weights. It's really good for someone that is a beginner or lifting weight is low or up to someone who is more serious about their workouts and lifts daily with a higher amount. My one complaint is that some of the individual plates feel slightly loose when the weight moves around, which makes heavier reps more difficult. So if the plates were completely secure, it would be a little better. But overall, they are great to have at home when you can't hit the gym.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great idea, needs perfecting

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great concept it’s just not practical if you’re actually using it to do durable workouts. It’s made of plastic so you’ll see the scratches and dents not to mention it’s hard to slide in when you’re using the 50 pounds limit. That been said I love the concept

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Excellent product

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent product lighting fast delivery and great price.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great dumbbells

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Nice dumbbells. Works great, which I bought them earlier.

    I would recommend this to a friend
  • Cons mentioned:
    Durability

    Rated 1 out of 5 stars

    Cracked plates b4 use - Makes me ? durability

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Looks like a really cool product, but upon unboxing over half of the plates were cracked deeper than the surface level. Son is hesitant to use them as we both question the durability - as they had seemed to be packed very tight and securely. Hopefully others fair better, but this was a definite black mark that ruined our experience.

    I would recommend this to a friend
  • Pros mentioned:
    Space saving
    Cons mentioned:
    Durability, Expensive
    Tech Insider Network Member

    Rated 3 out of 5 stars

    Space Saving Dumbbells but are they Durable?

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Buying pairs of dumbbells can be expensive and take up a lot of space. As someone who is limited on space, these dumbbells are an admirable size for limited space. I am collecting gym equipment to hopefully one day have my home gym and the JAXJOX dumbbells have so far been an amazing addition to my gym equipment. But I will be addressing a few flaws with these in my review. In this review, I will go into depth with my experience while using these JAXJOX dumbbells. ================================= IN THE BOX/SETUP/APPEARANCE: The box is heavy, the box weighed around 100lbs, but JAXJOX did an amazing job at packing the equipment so it won’t get damaged. In the box, you get a pair of JAXJOX dumbbells that can be adjusted from 8lbs to 50lbs. There is a USB-A to USB-C cable but no charging brick. And finally, a detailed instruction manual that comes in a myriad of languages. I’ve used JAXJOX equipment before, so I was familiar with the setup and how to adjust the weights on the dumbbells. I do recommend you read the manual before doing anything for safety reasons as well as to avoid damaging the equipment. Setup is straightforward, set the base on a sturdy floor, place the weights on the base, and finally place the 8lb dumbbell in the middle. Make sure all the weights are properly aligned. Aligning the weights is tedious but I will have more on this later. Both bases do require to be charged so you will need to fork out another USB-C cable to charge the other base unless you want to use the included one interchangeably when one base runs out of battery. Appearance-wise, the dumbbells are on the larger side which is understandable. I’ve used 50lb dumbbells before and they are a lot smaller than these but for space-saving reasons, I am okay with having bulkier dumbbells rather than 10 pairs of dumbbells. The base is still plastic and unfortunately, I do not think this base will take the beating it will get overtime. I’ve read a few reviews on here where these JAXJOX dumbbells have stopped working after a couple of months which is concerning. On the other hand, the dumbbells themselves feel sturdy. But I wouldn’t drop these on the ground as the sensors could be roughed and damaged making the entire product useless. ================================= TESTING/JAXJOX APP: Testing went well for the most part. The dumbbells do change weight quickly and since I have been testing these I have yet to experience any problems changing weights. The dumbbells are on the bulkier side so conducting certain exercises can be awkward but so far, I have been enjoying my workouts. Placing the weights back on the scale can be a bit tedious when the weights aren’t properly aligned. I did find this a burden but I just used it as an excuse to get an extra forearm workout in. A simple detail that I dislike about these is how often the weights move around when performing reps. The movement is minuscule but a bit annoying. I do want to address the negative reviews here. A lot of the bad reviews have expressed that the dumbbells break after a couple of months. A lot of these do mention that the dumbbells have simply stopped changing weight which is one of my concerns with using these for the long term. The sensors on the dumbbells will get roughed up over time and unfortunately will cause some problems with changing the weight in the future. The base sends a signal to the dumbbells to change the weights and when the base stops working, that’s a whole problem in itself. I have been careful while using these dumbbells, but I could only be so careful considering these are meant to be slammed and roughed up. These dumbbells are amazing when they work but the question is are they durable? Time will tell… There is also the JAXJOX App. I’ve used the JAXJOX app before and I did not find the app to be too helpful in my workouts besides the videos that teach you how to conduct a variety of exercises using the dumbbells. The app does a lot from tracking all your performance data with the dumbbell such as reps, duration of workout, and more. I don’t need such data since I track this myself, but I could see people using this for themselves. ================================= CONCLUSION: If I could use a few words to describe these dumbbells, it would be the following. “These dumbbells are incredible when they work but once they stop working, you got a big problem.” I did enjoy my workout sessions with these dumbbells. I especially loved how much space I save compared to buying a set of dumbbells. But unfortunately, I cannot recommend these due to the uncertainty of how durable these can be over the long term. I have been careful while using these dumbbells, but I shouldn’t have to “baby” these every time I am using them. Dumbbells are meant to be roughed up and beaten, I do not think these will take a good beating over time. Hopefully, JAXJOX can address some of these issues and release the second generation of adjustable dumbbells because I do seriously enjoy the innovation they are doing in the fitness space.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Compact, Weight range
    Cons mentioned:
    App
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Well built, but app is terrible

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Years ago I bought a set of iron weights along with a pair of star-lock dumbbell handles. I thought it would be great to do dumbbell exercises with a variety of weights. Changing out the weights turned out to be annoying, and the star-locks would loosen while I used the dumbbells, making the plates clang together. Eventually my usage of them diminished to zero. Fast-forward to today, and the JaxJox Dumbbell Connect. This is a set of dumbbells with plastic-coated plates that can be adjusted at the push of a button. Each dumbbell sits in its own plastic tray, keeping the weights nice and neat. The tray contains a rechargeable battery and a small LCD display showing how much weight is on each dumbbell. There are also 2 buttons, which you use to increase or decrease the amount of weight on each dumbbell. The set is well-constructed, with a knurled steel handle that connects to the weight plates. With no extra plates attached, the handles weigh 8 pounds, and you can increase the weight in 6 pound increments. Changing weights couldn’t be easier: just place the handle back in the base and select the amount you want with the buttons. Within a few seconds, each dumbbell will beep to tell you that the change is complete. The increments roll over, so that if you press too many times, just keep pressing and you’ll go back around from the beginning. This is actually a nice touch. Using the weights feels very natural. They attach to the handle securely, and don’t clang while in use. Some reviews have stated that it’s too difficult to place the handles back in the base properly so that the weights are straight up and down. It’s true that this does happen on occasion, meaning that the weights won’t adjust properly, but it’s easy enough just to be careful to ensure that this doesn’t happen. One thing I really like about this set is the clean look it has. I’ve seen other dumbbells similar to this that only look good at their highest weight setting. Anything less and it looks like you’re picking up some sort of black fishbone. The JaxJox Dumbbell Connect looks symmetrical and balanced at any weight setting. You can see this in my pictures. You can also see how neat and compact these are in their bases. Anyone who has tried to keep a set of iron plates stacked neatly knows how difficult this can be. The Dumbbell Connect packs 15 dumbbells into the space of 2, and that is a major advantage. The mechanism for changing the weights is motorized, so the connection between the handle and the base is critical for its operation. While it’s too early to tell, this has the potential to be the Achilles Heel for the set. Should the connection fail, or if the battery won’t take a charge, I won’t be able to change the amount of weight on the handle, and it’ll be a giant paper weight. Hopefully these will last a very long time, but it is something to consider as you compare to other alternatives. Speaking of batteries, the batteries in the base can be charged using the included USB-C charging cable. Unfortunately, JaxJox did not include a charger for the cable to plug into, so you’ll have to supply your own. While the handles and weights themselves are very well-built, I can’t say the same for the app. The app promises exercise tracking, goal-setting and on-demand classes, but it delivers very little. You are required to set up an account to get started, which some may find off-putting. I was excited to try out the on-demand classes, but I was disappointed to find that none of them were available without first signing up for a premium membership at $12.99 per month. I expected to at least find a few classes that I could try before paying even more money. There’s also a “programs” section in the app, but there are no programs available for the dumbbells. I checked out what’s available for the kettlebell, and did find what looked to be a pretty good set of workouts put together into a program, but when I tried to preview it, the app locked up. When this app locks up, it REALLY locks up, so much so that my phone is inoperable. In fact, no other app that I’ve ever used has been able to lock up my phone so tightly. Once this happens, you can do nothing but wait for it to clear up enough so that you can kill the app. The app will also lock up if a request to load a class fails. On the positive side, the app does include access to some “skills” videos that show some ways to use the dumbbells for various exercises. Other sections, such as “For You” and “Fitness IQ” are nothing but more ads for going premium. Beyond the video training aspect of the app, I was excited at the prospect of having it keep track of my workouts and progress toward my goals. Unfortunately, the app failed completely at doing that. It registered wildly inaccurate counts for sets and reps, and couldn’t figure out which day of the week on which to place them. I did a set of 8 reps and the app told me I had done 3 sets of 2, 2 and 3 reps each. Trying to use this for tracking toward a goal is just an exercise in frustration. Given that the app features a lot video content (if you pay for it), I thought it would be better to use on the bigger screen of an iPad. Alas, it’s not really a universal app that scales properly for an iPad. Instead, it stays in the phone aspect ratio and cannot be rotated. Overall, the app is a complete waste of time and ruins an otherwise stellar package that is more reasonably priced than its competition. Thankfully, the app is not required to use and enjoy the JaxJox Dumbbell Connect. I’m hoping they’ll be able to work out the kinks in this app in the future. If I thought the app was absolutely critical, I'd give this review 3.5 stars. I really like the Dumbbell Connect, and hope that it will provide many years of service. I’ve seen other reviewers report inoperable sets, so I’m going to keep an eye on this issue. I haven’t experienced anything like that so far. I’m enjoying this set very much, as long as I don’t try to use the app. I recommend it!

    I would recommend this to a friend
  • Pros mentioned:
    Space saving
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Compact Space & High-tech Workout

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wow! Technology has come a long way since I was a teenager and working out routinely for sports. Being a tech person I know we can do all kinds of wonderful and awesome things with technology but I was not sure if there would be a huge, vast improvement to the tried and true dumbbell set. I am happy to admit that I was completely mistaken. The JAXJOX Dumbbell Connect with weight adjustable dumbbells is a really cool and an technological advancement I never knew I needed! My family and I are always on the go so it can be hard to take time to get to the gym and with Covid-19 going on we have not been wanting anyone in the house to do so. Which, for me, I haven't been in a gym since probably high school except when doing some minor working out with my sons. I had been looking at various exercise equipment for our home. All the way from the high dollar all in one pulley or rod systems to conventional weights. We decided to hold off for now and not long after I was offered an opportunity to test out and keep the JAXJOX dumbbell set. Little did I know that one of my sons had been looking at a set of these during our search. It wasn't until they arrived that he let me know "hey! I knew about those and was wanting to try them out!" and that is what we did! SETUP: Set-up was really easy. The package is pretty heavy so it took myself and one of my teenage sons to get it inside of our home. Once we did we went about setting it up. In the package you have 7 plates for each side of each dumbbell. These arrived about half charged but we wanted to let them charge fully before trying them out. We got the bases, plates, dumbbells and cables out of the box and set up. The only thing not included is a wall outlet to USB adapter. The set comes with a USB-C cable for each base and luckily we had two spare wall adapters for us to use. It took probably a few hours to charge, I didn't keep a timer as we had other things we needed to do around the house. Once everything was charged we went through testing out to make sure it would put the correct amount of weight that you set on the base's LCD screen which it does so quickly and flawlessly. Next I downloaded the JAXJOX app to my phone and set up my account. It asked the basics of height, weight, gender, and fitness goal as well as connecting you to the equipment that you have. JAXJOX has a few different solutions that they offer and we will be looking to them to add to our home exercise equipment. The system is very sleek looking, and fits inside our modern looking home very nice-I really love how it looks and the quality of the dumbbell set is top notch. They are flat on the bottom and allow for using them during push-ups. Plus we are able to save TONS of space with this JAXJOX system. JAXJOX APP AND USAGE: The JAXJOX app itself houses all the workout videos and you can filter by the length of the class, what muscles you'll be working on, the instructor, your fitness level, and a filter called "Category" which focuses the workout on building strength, burning calories, or so on. One thing I found very odd is on the Classes screen I can select my equipment but when I then go to filter it doesn't apply that equipment "filter" nor does it allow for doing so. This can be fixed later but it is pretty annoying as the thumbnails for everything I saw showed the kettlebell being used. I'd like to see them fix this. So, what I ended up doing was showing all the dumbbell workouts and picking one I thought would work best for me in that moment. All the instructors I took on-demand classes with were great! They talk you through what you are doing to be sure you see and hear what they are wanting you to do. Also, there are no dumbbell based Programs, only the kettlebell. Build the programs and classes up JAXJOX! I noticed some were having issues with the dumbbells losing connection to their phone, I did not have that issue. They stayed connected. I am not sure if they had multiple people using the dumbbells on multiple phones or what, but we had it just on mine and used it through my phone. I did however have an issue of where it was not tracking how many reps I was doing. One of the reasons I wanted this was so I could keep track of how many reps and sets I was doing as I tend to lose count if I am just wanting to do a few quick sets without doing an on-demand class. Bummer. Hopefully they can work on fixing this and get it resolved for us. Lastly, I would love the ability to try some of the premium features. With the retail price of this set being what it is I would think they would do a 30-180 day (1-6 month) trial or free premium. Maybe that is something else to look into. I am actually really happy with this. Yes, there are bugs but with technology there are always going to be some bugs that need to be fixed along the way. I have Alpha'd and Beta'd a lot of different products as well as even played video games that have "gone gold" (been released for purchase) that had massive bugs once launched so I am not too terribly worried about the bugs they have. I am sure they will fix them very soon. CONCLUSION: While not completely bug free it is still a very nice set and has such a very small footprint for the amount of weight it is capable of. I have already recommended this set to a couple of family members and friends as I believe this company, if they keep with it, will really be changing the exercise game and bringing it into the 21st century! So why the 4 stars? We do have a couple minor bugs in the app (mentioned previously) as well as the need to supply your own wall outlet to USB adapter. Something this price you would thing they would provide the wall adapters as well as have some of the more basic bugs worked out as well as the content to support the items they are selling at market. Unfortunately that is not so. If you're looking for a good set up of weights with a small footprint and some pretty nice training classes on the app then definitely give the JAXJOX Connect Dumbbell set a shot! RATING: 4.5/5

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Do not buy!!!!

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Of course this would stop working a month after I’m able to return them. Worked fine but now the handle won’t charge despite the base being at full charge. It’s not the connection because the base recognizes when the weights and handle are placed on it. I now have 2 50lb paperweights since there’s no manual release for the plates.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Weight range
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Space saving smart dumbbell

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    With an 8 to 50 pound weight range these offer a lot of room to grow for beginners and save space. The weights are well built and the work out tracking works well. The app and training are a good place to start, but not perfect. Pros - Saves space compared to a traditional dumbbell set - Tracks reps, sets and total weight lifted during each session and tracks your overall progress - Build quality is excellent. Weights feel solid, have good grips and the sides and base are covered with a soft touch material - Adjusting the amount of weight is easy from the base using add/subtract buttons with clear indication of the amount of weight on an LED screen. Once you set them, the weights are secure. Things to Consider - The phone app does help you get started as a beginner. There are a variety of classes that target different work out styles (sweat, strong, restore and skill) and help you isolate different muscle groups. The app lets you filter classes by your device, but some classes used multiple devices and it was not clear which were only for the dumbbells. The trainer led classes at times felt canned and you had to keep up - the app counts reps, but does not provide any feedback to adjust the pace of the class. You also have to adjust the weighs yourself between reps (the trainer does this during short rest), but it is clunky and adjusting the weight from the phones touch screen via the app is slower/harder than using the base. There seem to be some misses with how integrated the weights are in the training session. - While changing weight settings is not particularly hard or slow, it is noticeable during super sets and can throw off your tempo. - No USB charger is included and the charging cables are short (3ft). I have been using them daily for a week without having to recharge them, but it is still inconvenient when they need to be charged and seems like an oversight on a premium set.

    I would recommend this to a friend
  • Pros mentioned:
    Space saving, Weight range
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Houston we have space!

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These save a ton of space (see pics). Overall easy to setup and use. They are a little bit bigger than traditional weights (see pic comparing a 32lb JaxJox to 35lb traditional metal), but still comfortable to use. Love that they auto track your reps into the app instead of having to stop and write them down. Same for the follow along video workouts (note paid monthly subscription for most of the workouts). - I was happy to see that I was also able to push the workouts from my phone to my TV - Note this requires a smart tv, AppleTV, etc.to push your phone to your TV – I have an iPhone and an AppleTV and worked perfectly if you want a “bigger” screen than a phone or ipad to follow their workouts. It doesn’t have every weight of a conventional set, but gets close enough to find your equivalent – example you need to use either 32 for 35 or 38 for 40. But once you get used to using these, you just progress like you normally would. These can be set to 8, 14, 20, 26, 32, 38, 44, 50. They have one flat side on the weight discs for setting into the platform/charger or on the ground. If you don’t set these down on the flat side on your floor than can roll a bit, but same goes for any round dumbbell. Hopefully the unit rechargeable batteries last a long time as they are needed to set the weight. Charging units are slim and overall these take up very little room. Note they don't come with a plug, just the 2 usb cables, so you'll need a dual usb plug for charging. Going to get rid of a bunch of our older traditional weights!

    I would recommend this to a friend
  • Pros mentioned:
    Easy to use, Weight range
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Tracks your progress for you

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I’ve been in the market for these adjustable dumbbells for the longest time. I was getting tired of buying individual dumbbells with various weights crowding the floor, but never thought about these adjustable ones. Well, I gave in and was happy with JAXJOX‘s due to the app assisting me in my reps. After a few weeks of using it here are my thoughts. The initial set up was pretty self explanatory and simple. Placing the individual weights and dumbbell on the base stations and then connecting them via the usb-c cables to a power source, and then allowing the app to locate them took only a few minutes. The app offers various workouts with instructors and also tracks your workout which was nice. More on this later. Each individual weight is 3lbs, with it going up in increments of 6lbs; the lightest being 8 lbs. I’ve found it rather easy for this to adjust to your weight and you hear the motor connecting to the determined weight setting. The bottom is also flat so you don’t need to worry about them rolling away. The app itself offers really helpful workout routines with different trainers. Unfortunately many of them are only accessible to a subscription. I feel maybe some of these should be available without a subscription. I also noticed that when lifting, the app did not fully count many of my reps. I had flashbacks of Basic Training when my Drill Sgt didn’t count my reps if done improperly. I still did it and followed Arnold Scwtaetzaneggar’s advice to only start counting when it begins to ache! Overall, the JAXJOX is a great addition to my home gym.

    I would recommend this to a friend
  • Pros mentioned:
    Weight range
    Tech Insider Network Member

    Rated 4 out of 5 stars

    This smart dumbbell is smartish…

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Jaxjox is one of the first, if not the first to implement smart tech into a dumbbell. While bowflex selectech has dominated this segment in years past, Jaxjox attempts to “one up” the home gym giant. Pros: • Replaces 16 dumbbells for space saving • Modern flair • Enough weight to challenge most Cons: • Even though its expensive it’s still cheaper than main rival • App is horrendous • Not the fastest to change weights There is so much to unpack here that I think it’s best to break this review down to a few categories and my review score for each category. (1 for worst and 10 being best) Dumbbells: 8.5 out of 10 In the box are 2 sets of 50lb max dumbbells, dumbbell docks, a manual and 2 USB-C charge cables. You will need to provide your own USB power outlet. Make sure to initially charge the dock/base with the dumbbell handle to “unlock” the shipping mode. Without both the base and handle charged, you will not be able to pair your smart dumbbells to the Jaxjox phone app (Bluetooth). You don’t need the phone app to function the dumbbells but there are benefits that I’ll describe in more detail in the App section. After setup and charging, the dumbbells can only be changed via the 2 buttons on the base. Battery life appears to be good for what it needs to do. I haven’t fully depleted the batteries yet after a few workouts so I can’t comment on the longevity. The left/right buttons cycles the weight options from 8lbs to 50lbs in 6lb increments. Why 6lb increments? Who knows… It takes roughly 10-12seconds for the weights to change. This speed is ok for some workouts but not all. More on this later. The aesthetics of the dumbbells is great. I never thought I would judge a dumbbell by it’s look but it does look great. The dumbbells do feel substantial with very little play for an adjustable dumbbell. The knurled grip is perfectly sized. Why 8.5 score? A few things that kept the actual dumbbells from a perfect score are the following: • Display is hard to see at certain angles. I have these sitting on the floor and it’s hard to see the display while I’m standing. The screen also turns off in a few seconds. Why can’t the display stay on during my entire workout? • No plate numbers so I have no idea what the total weight of each dumbbell is without waking the base to show me • Changing weights is easy but you can easily overshoot your selection since the left and right buttons keeps cycling from 8-50 and 50-8. An easy solve would be to have the left and right buttons stop at the lowest or highest weight option without cycling through the whole list again. With this suggestion, I would then be able to select the highest or lowest weight without looking. During a workout session with heavy breathing, setting the next weight can be daunting as my trembling fingers always over or under shoots the desired weight setting. Maybe a 3rd button to confirm my choice without accidental weight selections. • No handle or a place to carry on the actual base so very cumbersome to move your weights for storage. I work out in my living room so I tuck these dumbbells into the corner of the room when I’m not working out. Without a handle or hand slot, I find it best to keep the weights at 50lbs and move the base and dumbbell separately to where you need it. • And lastly, every time I need to do a weight change, the base shows me the “Jaxjox” logo for a second or two and that takes me out of the rhythm of the workout. Why bother showing me a logo every time I need to change weight? App: 5 out of 10 While you don’t need the app to function, the app does allow the dumbbells to be a bit smarter than the competition. The dumbbells pair to your phone with the app and the app allows you to change the weight via the app. While gimmicky as the weights can be changed on the base, the app does track sets and reps with the accelerometer in each handle. After a workout, the summary screen shows your total weight lifted, how much calories estimated you burned and total reps/sets you completed. All sounds great but why 5 score out of 10? Here is why: • Not intuitive app to use • The app is free to download, but the workouts are not (more on this later) • Need to remember to pair the dumbbells to your phone before your workout. They will not automatically pair with your phone. • Did I mention that the app is hard to use? Workouts: 3 out of 10 Jaxjox has their own workout classes in an already heavily saturated streaming workout platform. Copying the likes of Peloton, Apple Fitness+, Beachbody, etc, it falls a bit short. It sounds like it makes sense they should have their own workout classes since each equipment they sell is smartly connected to the app but it falls short to my expectations and here is why: • The workouts are paid monthly with no contract. I’m on the free trial period and I will not renew (more on this below) • The workouts can be casted to my smart TV which is the only silver lining. • Sorting and filtering through the different workouts is a bit daunting. They have zero descriptions on what each workout does and limits it to the vague title of the video of what the workout attempts to do. • Having experience with Apple Fitness+, these trainers on Jaxjox is highschool production compared to the others. • The workouts are extremely fast pace and some of the 30m workouts barely gives you time to switch weights before going to the next muscle group. I was hoping that the app would be smart enough to change weights for me based on the workout im streaming through their app. A big swing and miss here. The 45m program I tried did give me a 20sec rest period between sets so I can change weights. But why can’t I preset weights I want for each muscle and have the app do it for me based on the fitness video? • The workouts are not only fast pace but not geared for the aspiring couch-to-fitness user. I’m doing burpees for a strength program? What is this…crossfit training? In summary, the weights are great but could be better with a firmware update to fix the issues I mentioned above. The app and workout programs are downright awful. The bright side is that it can only get better from here and future updates can easily make this better. Did I need the weights to be digital vs a knob to change the weights? The verdict is still out on that one.

    I would recommend this to a friend
  • Pros mentioned:
    Weight range
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Versatile, space saving, time saving = efficiency.

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So, with the pandemic going on and uncertainty of gyms staying opening or closing, I decided to start investing in some home options in the instance the gyms were to ever close down again. This is where the JAXJOX Dumbbells. For one, prices of dumbbells became inflated during this time we are in. The amount it would’ve cost me to get a few sets of dumbbells made no sense when you can have an all in one option like these. These are 15 dumbbells in one when you consider all the weight adjustments you can do with them as a pair. The amount of space saved with this efficient design made this a no brainer. The weight options range from 8 to 50lbs in 6lb increments. This gives a nice sweet spot in weight whether you are trying to cut, bulk, going for light weight with high reps or heavy weight with low reps, the versatility of these are fantastic. Adjusting is easy thanks to the bright and clear LCD screen on the base. The JAXJOX app offers a lot of options itself too, especially for classes. My first class I signed up with was only about 9 minutes long, it was a Strong class with Coach Anthony.. I figured 9 minutes to test these bad boys out, should be cake… wrong… I was dying in no time. Now, I know the pandemic hasn’t been great for me and adding a few extra pounds and being out of shape, but for someone like me who practically worked out every single day before lockdowns, I did not expect this short workout to do that much work for me like it did. I was sweating in no time and watching in real time while the class/video was playing my reps and progress. At the end of it all my data saved and logged to todays today to go back to reference. This is extremely beneficial as this allows you to keep track of your progress and your improvements the more you do classes and do the same way down the road to see how far you've come along. Now, I’ve been going back to the gym since they opened back up however my motivation just hasn’t been there. I feel like I’m dragging along and at the end of my workout don’t feel like I accomplished much or feel the good pain… after just 9 minutes I can say that wasn’t the case. I felt motivated just hearing someone coach me along and push me to get it done. After the short 9 minutes I felt like I accomplished a solid workout. This is my first time really utilizing a coach based virtual trainer like this and I have to say it definitely helped. I would definitely recommend these if it fits your budget. The overall package and synchronization this offers I feel sets it apart from competition. From its versatility, to its comfortable handle and solid build, I really don’t see how anyone would be disappointed. My only negative I'd give this is the monthly subscription to classes. I personally feel somewhere around $5 to $8 a month is more sustainable

    I would recommend this to a friend
  • Pros mentioned:
    Weight range
    Cons mentioned:
    Bluetooth connectivity
    Tech Insider Network Member

    Rated 3 out of 5 stars

    Not worth the weight

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The weights themselves are top notch and very well designed. They are flat on the bottom to allow using them as push up grips. You can use the buttons on the front of the base to adjust weight of the dumbbell in 6 lbs increments. The handle without weights is 8 pounds and there are 7 weights for each side maxing at 50 lbs per dumbell. Beyond using the buttons on the base there is an app to control the weight and track your exercise and progress. More on this later. Essentially you have 8 different weights you can use per dumbell, the units being separate this should allow you to adjust one weight to be lighter that the other. I have a injured elbow I am recovering from and need to use a lighter weight for it while I build my strength back up. The design is compact, similar to other adjustable weights you have seen. There is a USB type C port in the back of the unit for charging. Inside the app you have many options and classes you can take while also tracking progress. You have a schedule where you can add classes to it. There are also classes you can follow for Strong, Sweat and Restore workouts. They do push a premium membership to do any of the workout classes or schedules. The overall package looks pretty good initially. The app is where things completely fall apart. With the app, for whatever reason, both dumbells will adjust to the same weight. I have reconfigured them individually and they still sync to each other. As I mentioned, as I work my way up with my injured elbow, I am trying to use a lighter weight for that arm. The app prevents that from happening. Bypassing the app using the LCD controls will allow you to have two different weights at a cost. Beyond treating separate dumbells as one, the app is suppose to track your workouts. This is a fail in the tracking. If I set the weight at the base the app does not pick up on any of the activities I have done. The tracking shows no activity for the day, but when I look at the week it will show some data just not all the data. And the data is incorrect. For instance I did 60 reps on Tuesday that tracked incorrectly as 62. But I also did 60 reps on Wednesday that only recorded 20 and does not show in the Today stats. I can see the count in the Week stats, this is where the 20 is reported. Somehow it also has stats for Monday before I even configured the weights. Beyond that, the sets report as 0 for all days. Looking at the weight stats, they are incorrect also and not tracking even remotely accurately. Looking in the App Store for Apple or the Play store for Google and the app has some downright terrible reviews. In all honesty you need the app for nothing but incorrect tracking and them asking for more $$$ for premium membership. Adjusting the weight at the base is actually easier than using the app. The apps design is terrible, and that is being nice. It forces you to fill out your personal info to create and account before you can even use the app. The app takes anywhere from 1-5 minutes to open first thing in the morning before it times out and forces you to log in again. The Bluetooth connection is also very unstable. I am using an Android phone, but I do not believe it is my phone that is the issue. I have had to reconnect the dumbells 2 days in a row. After the initial connection they will connect to the app intermittently the rest of the day if you open the app to the foreground. I say intermittently because there have been quite a few times I have opened the app and the dumbells do not respond. The app supposedly runs in the background to collect any workout data, which it fails at collecting. The For You tab in the app should just be called Advertisements For You. I own the dumbells but they are not even listed in the main intro screen called For You. When I go to Devices tab, every possible device I could buy is listed. You would think My Devices I have synced would be at the top...nope. My devices are mixed in with all the other offerings. The good thing is that most of the software issues should be able to be resolved in future updates. The bad thing, getting to that stable release depends on how the developers of the app correct the issues. I think the thing that annoys me the most about the app is the listed workout classes all require you to sign up for premium access. It would make sense to have some introductory classes that anyone can access to see if premium is even worth the time of signing up for the free trial. Based on how the app is designed I fear signing up and not being able to cancel after the trial period. Overall the design of the weights themselves is top notch and compact. The software side is the downfall of these weights. If I were to rate the weights alone, they are a 5 star rating. BUT the app ruins the experience so much my overall rating is only a 3. A complete redesign of the app is needed and the Premium nag screens are downright annoying and need removed. I would rather have a lock on the sections that requires premium access than have the nag screen pop when I attempt to open a class.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Space saving
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Space Savers

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These are great for space saving. I'm impressed with how little space they take up but how much they add to my home gym. There are so many exercises you can use dumbbells with. Switching between settings is fast and easy. I wish they came with a little more weight like maybe up to 60lbs. I can see some of my exercises out growing the 50lbs. Setting up the app was a little confusing but you could just plug them in and go. They come with 2 charging cords but no wall warts. I wish they just connect together then had 1 cord that went to a provided wall wart. The charge is long lasting. I didn't have an issue with durability but I have a concern with durability. It seems like the plastic around the weights could crack pretty easily if you aren't careful. The bar is sturdy and ergonomic. Grabbing around the weights is pretty easy too for some exercise. It would be nice if the base beeped a notification if the weights were misaligned when being replaced. I had a couple times one side would get skewed and miss the slots but the base beeped that everything was ok. For me the app seemed pretty worthless. It was confusing to navigate and required a subscription to access anything useful. The programs and classes it had were good. There were different durations and skill levels. Like you could choose a 10min dumbbell workout or a 60min one. My issue is for the cost of the subscription I might as well pay for a gym membership and have access to all the equipment. The only free part of the app was tracking reps and overall weight lifted. Interesting stats but nothing I personally track. As smart weights these have a lot of potential. The app could be updated with better features. Like paying less for individual workouts instead of a subscription would be better and then having free basic workouts as well. Tutorial videos on various dumbbell exercises. Being able to create your own work out choosing the exercises you want then being able to share that amongst friends. With the rep counting you could set up challenges amongst friends.

    I would recommend this to a friend