JAXJOX DumbbellConnect™ - Adjustable Dumbbell Pair - Cool Gray

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.

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!

1. Solid unit. 2. Was able to get connected and running in minutes. Have the app installed and turn on the bluetooth on your phone as well as in the app. 3. Build quality is good, besides the plastic around the handle and base. 4. USB cables are long enough as these units project to have a long battery life. 5. Rep count works, but the apps integrations are limited. Check out my quick preview. More detailed review to come. https://youtu.be/ak9YlEIyrbU

Poorly designed. Base does not hold weights straight so its impossible to drop dumbbell into the base and connect both of the left and right set of weights. (One side tips away from the dumbbell and does not connect properly when you put the dumbbell into the base. If you try to align the far side than the first side no longer connects. You can use one hand to straighten the weights properly and then use your other hand to drop the dumbbell into place. This is a problem when you are trying to place two heavy dumbbells at the same time.) One handed, your dumbbells constantly drop into place with a broken connection to one side of the weights. Too expensive to be so poorly designed. It wouldn't take much to redesign a base that holds the weights correctly, rather than letting them tilt so far side to side. I imagine they will have to do a redesign next year to fix this. I would definitely wait till then when the product is ready. The app is kind of cool how it can track total reps and weight. But currently it constantly confuses picking up the bells from the base and walking around the room as multiple double reps. Literally half of your reps will be incorrectly counted as 10 separate double reps that weren't reps at all. So doesn't really work in practice.

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

One the two bases doesn't turn on not even when it is connected and the bases construction feels very fragile.

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.

These are awesome, I was skeptical as the price is about $200 less than I would expect for something like this but they did not disappoint! The way they adjust they are only as large as they need to be unlike other adjustable dumbbells that end up being the same length regardless of weight. The app made it seem like you have to subscribe to use it at first but you just have to back out and then sign in after setting up an account. Only issues I have is you have to be somewhat careful when putting the weights back into the base to make sure they line up properly (relatively minor issue) and they don't make a separate stand for them other than the whole interactive studio thing. Unless you are looking for one of the rare adjustable sets that goes higher than 50 lbs I doubt you will find a better setup than this... and yes it came with two of them.