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Customer Ratings & Reviews

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Customer reviews

Rating 4.5 out of 5 stars with 2269 reviews

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Rating by feature

  • Value

    Rating 4.2 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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Cons mentioned filter

89%would recommend to a friend

Customers are saying

Customers often highlight the Temperature Control Smart Mug 2 for its temperature control, ease of use, size, color, and sleek design. However, some customers have expressed concerns regarding battery life and price. Others have reported issues with the app and connectivity. Additionally, some customers have mentioned the high cost of replacement charging coasters.

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 5 Showing 81-100 of 2,269 reviews
  • Pros mentioned:
    Temperature control

    Rated 5 out of 5 stars

    Hot steamy happiness

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

    Hot coffee or tea all day long.. for serious sippers.. so nice for cold weather

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Good for a while

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good novelty items. Unfortunately no longer works as bottom heating system failed. This happened to 2 of them. very expensive items.

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    Quality mug with some issues

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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.

    I have had this mug for a couple weeks now but the quality seems solid. The mug itself, feels good in your hand, very solid and easy to clean. The battery seems to last about 1 hour on the highest setting (145 F). But now for the downsides. The App and Bluetooth connection frequently drop. I frequently find myself having to kill the app and reconnect. Which makes this mug really difficult to use. There is no indicator on the mug itself for temperature so when it disconnects from my phone and is no longer heating I have to kill the app, reconnect, and find that my coffee has dropped below the temperature. This has happened about 1 in 3 uses of the mug. Also, updating the firmware was a pain, but hopefully will only have to do that once or maybe twice. Another small issue there is an indicator light... but it is only on the right side. I like to hold my cup in my left hand so I rarely see the indicator. Overall, I would probably not recommend this product and may still return it. If I could just use this mug without an app it would be so nice.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Temperature control

    Rated 5 out of 5 stars

    Satisfied

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

    Lovely mug to prolong your cup of joe during the morning!

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Was great until it wasn’t.

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

    My wife loves this mug. I would like to give it a higher rating. But alas, it’s not working out well. After a month, the coating has started to come off the interior of the mug, leaving it all but unusable. Wish we wouldn’t have spent the money, but hopefully we can at least get a warranty replacement.

    No, I would not recommend this to a friend
    • Brand response from Ember, Inc.
      Posted .

      Hi there, thanks for the review w are glad to hear that your wife has been enjoying the mug. If there is any damage, our team would be happy to help, please feel free to reach out to Ember support on ember.com and our team would be happy to help! Ember

  • Rated 1 out of 5 stars

    GREAT IDEA POOR EXECUTION !

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

    Thought I would like this it seems well made but I turned it all the way up to 145 degrees and when I checked the temperature with a calibrated thermo pen it only reads 125 with the white light on that means it’s up to temperature. A very expensive fail.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    "Smart" Mug was defective and started to melt

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

    First time using the Ember Smart Mug and the plastic on the front began to melt. Definitely will not use again and have returned this defective "smart" mug. Obviously cannot recommend this product.

    No, I would not recommend this to a friend
    • Brand response from Ember, Inc.
      Posted .

      Hi there, thank you so much for writing a review! We're so sorry to hear that this happened to your mug. We appreciate your feedback and will pass this along to our team as we continue to improve! Ember

  • Rated 1 out of 5 stars

    One drop of water will break this mug

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

    The mug charger broke less than a month in. Paid 150 bucks for a regular mug. If one drip of water touches that dock plate where the charging prong is, it breaks. Don’t buy this product if you value your money. Might as well just buy a dang hot plate.

    No, I would not recommend this to a friend
    • Brand response from Ember, Inc.
      Posted .

      Hi Amanda, thanks for leaving a review! We're so sorry to hear about the experience you've had with your mug. We would love to help get it back up and running so please reach out to us at [email protected] so we can assist further. Ember

  • Rated 4 out of 5 stars

    Bought 2 only keeping 1.

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

    While I love both only one seems to work properly.

    I would recommend this to a friend
  • Pros mentioned:
    Temperature control
    Cons mentioned:
    Battery life, Connectivity

    Rated 4 out of 5 stars

    Good, could be great.

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Overall it does what it says it does. Keeps your drink at the desired temp. There are a couple of problems. One the cup's bluetooth sometimes needs to re-paired with the ember app. I've had to do this a couple of time. Pairing is easy though. Second i wish that battery lasted a little longer. I dont think im getting 90 minute. Maybe 60. If you get it on sale like it is now. Get it.

    I would recommend this to a friend
  • Pros mentioned:
    Size, Temperature control
    Cons mentioned:
    Battery life, Connectivity

    Rated 5 out of 5 stars

    Delightful

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

    I never knew what I was missing on my tea experience before I got this mug. It's just amazing to be able to enjoy a drink from the first to last sip at the same optimal temperature! I got the black one since a friend told me he wished he had got the black one giving that the white one tend to stain over time. The battery doesn't last long off the coaster, but it has been working greatly for me nonetheless. I love the feel of the mug, the size, the weight and the finishing. I only had major issues with the connectivity to my previous android phone, but so far with the new phone, it has been smooth. I love this mug so much that I got one for my husband and the travel one as well! I just wish Ember would make the copper edition 14 oz!!! Even though it's a pricey mug I feel it is so worth it. If you are a coffee/tea lover just go for it, it won't regret it!

    I would recommend this to a friend
  • Pros mentioned:
    Size, Temperature control
    Cons mentioned:
    Battery life

    Rated 5 out of 5 stars

    A nicely designed luxury item to use every day

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

    So I have two Ember mugs: the original edition of the 10-ounce model, and this newer-edition, 14-ounce model. I love them both. I'll keep one at home and put the other one in my office, if I ever go back to the office. Yes, it's expensive for a mug. However, it is extremely satisfying to drink from a mug that keeps coffee / tea / hot chocolate at a consistent temperature. As I've seen it described elsewhere, it is surreal / sublime to get to the bottom of the mug and the last gulp is still hot. Your brain goes, "What?" And then it smiles. The iPhone app, which you can use to tweak the temperature, works really well. I understand that the Android app can be quite buggy, which Ember really needs to address. However, you can get by without adjusting the temperature since the default (I think it's 135 degrees) is fine. Ember's customer service is top-notch. They are aiming for the type of relationship that Apple has with its customers. Product design is a key part of their value proposition. Even the product packaging is elegant. Beyond the luxury aspect of this expensive mug, there is a practical element in that you don't have to walk to the microwave to warm your coffee. This is great in an office setting (home or away) where the microwave is not close by. Best Buy had a nice sale before Christmas. Sales are very rare for this mug, so you should buy it if you ever see it discounted. The 10-ounce model is generally enough, although the 14-ounce size obviously allows a larger serving. Either is good. Use a wooden or silicon spoon - not metal - to stir. Otherwise, you could scrape the enamel over time. The mug will still work, though. This is not the highest-priority item to spend money on. But once you have spent money on those items, you should buy this mug. It's a joy.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Temperature control

    Rated 5 out of 5 stars

    A great mug for the winter season!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    As a college student who is consistently in class or working, I do not always have the time to reheat a cup of cold coffee. That's why I love the 14 ounce Ember Temperature Control Smart Mug! It is the perfect size for someone who loves coffee. It is easy to charge and pair with the Ember app to keep the coffee at my perfect temperature. It's also great that you can easily handwash it without having to worry about messing up the internal hardware, since it's waterproof enough to be washed easily! Overall, I'd recommend this smart mug to anyone who loves coffee but hates when it gets cold! Best Buy College Crew members receive products to write honest, unbiased reviews. Reviewers have been provided products free of charge and may have received nominal compensation.

    I would recommend this to a friend
  • Pros mentioned:
    Design, Temperature control

    Rated 5 out of 5 stars

    The Perfect Mug for the Modern Coffee Lover

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

    I recently purchased the Ember - Temperature Control Smart Mug² in the stunning 14 oz Blue color from Best Buy, and I must say, it has completely transformed my daily coffee and tea experience. Firstly, the design is not only sleek but also incredibly functional. The blue color adds a touch of elegance to my desk setup. The 14 oz capacity is just right for a substantial amount of beverage without feeling too bulky to handle. The temperature control feature is nothing short of revolutionary. I can set my preferred drinking temperature, and the mug maintains it for hours. This means my coffee or tea stays at the perfect warmth, whether I'm in back-to-back meetings or just enjoying a long, leisurely read. No more lukewarm sips or rushed drinking! The app integration is seamless, allowing me to customize my temperature settings or even find the mug if I've misplaced it around the house. It's an incredible feature that adds convenience and a bit of tech joy to my routine. Battery life is commendable as well; I've found it holds charge long enough for my entire workday, which is a significant plus. Lastly, the build quality feels premium; it's clear that durability was in mind during the design process. This isn't just another mug; it's a smart accessory that elevates your beverage experience to a new level. If you're a coffee or tea enthusiast looking for that perfect blend of technology and functionality, the Ember Smart Mug² is an investment you won't regret. Absolute 5 stars from me!

    I would recommend this to a friend
  • Pros mentioned:
    Design, Ease of use, Temperature control

    Rated 5 out of 5 stars

    Amazing Mug

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

    Game-changer for coffee lovers! Ember keeps my coffee perfectly hot from first to last sip. Sleek design, easy app control, and no more lukewarm coffee. Pricey, but totally worth it for serious caffeine enthusiasts. Battery life is solid, and the tech is surprisingly intuitive. The app is great. It recommends dofferent heats for coffee and tea. Get the lid to save battery!

    I would recommend this to a friend
  • Pros mentioned:
    Color, Size, Temperature control
    Cons mentioned:
    Price

    Rated 5 out of 5 stars

    Treat yourself to Ember! You won’t regret this t.

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

    Love this mug! Great size, color and it keeps my tea warm until the last drop. Pricey little gadget, but I no longer need to run to the microwave 5+ times to reheat my cup of tea.

    I would recommend this to a friend
  • Pros mentioned:
    Temperature control
    Cons mentioned:
    Battery life, Price

    Rated 4 out of 5 stars

    Nice Mug!

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

    My wife has gotten some good use out of her Ember and loves how it keeps her coffee or tea hot. We have not had any issues so far with the finish flaking inside as others has noted but we have only used plastic spoons in it. The app is easy to use and the mug turns off when it senses it is empty. The only reasons for it to be 4/5 stars is the battery life is not the greatest if you like to keep the temperature at the higher end, AND, the price - could easily be at least $50 less....hard to imagine there is $130 worth of tech and materials. Best buy doesn't have other options for 'smart' mugs and it was a Christmas last second gift...oh well. Also, the battery will last about 20-25 minutes if you keep the temp around +140. Of course this is a non-issue if you can arrange to have the charging plate nearby such as a desk or end table. If you don't mind the steep price I would recommend it.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Temperature control
    Cons mentioned:
    Battery life

    Rated 4 out of 5 stars

    Great mug, awful app

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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.

    The mug itself is great. I personally prefer drinking coffee from a mug as opposed to a thermos. I would sip on my coffee throughout the day, but by the end of the day, it would be ice cold. This mug fixes that. Now my coffee is hot the whole day. That is as long as I keep the mug on its charging coaster, as the battery does not seem to last too long on its own. This is not too big of an issue though, as I keep my coaster on my desk while working. The mug itself is easy to operate. If you don't use the app, it will automatically keep the coffee at 135F. However, not using the app misses out on a lot of the advertised features of the mug. The app looks like it should be easy to operate, but let's just say it should not be used as a role model for other IOT apps. If the mug loses connection to the phone, the app doesn't know how to react. It will sometimes think the mug is connected when it is not, and other times it will think the mug is disconnected when it's actually connected. Occasionally, the phone will get spammed with pairing requests from the mug. The app has a 1.3 star reading on the Google Play Store for a reason. To make matters worse, it hasn't been updated since September. This gives me little hope that the apps problems will be fixed soon.

    I would recommend this to a friend
    • Brand response from Ember, Inc.
      Posted .

      Hi there, thank you for leaving a review and sharing this! While we're glad to hear you've been enjoying your mug so far, we're sorry that you've experienced issues with connectivity. This is something our team is working on and we do want to assure you the mug is functional without connection to the app! With that said, we appreciate your feedback and will certainly share this with our team! If you're still experiencing issues, please reach out to our team at [email protected] - we'd be happy to help! Ember

  • Pros mentioned:
    Temperature control
    Cons mentioned:
    Battery life

    Rated 4 out of 5 stars

    Good overall

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

    Decent but very pricey for what it is. I set to keep my drinks at 145 degrees and it does do that. Battery life is not great, bordering on bad. This is best for those who will be near the charging coaster and be able to set it on there between sips. If you plan to carry it around the house or office you will get 30 minutes to an hour of the battery before it dies. Have to be somewhat particular about how it plops into the coaster also. I like it but would also advise you to wait until there is a sale on it.

    I would recommend this to a friend
  • Pros mentioned:
    Temperature control

    Rated 5 out of 5 stars

    Hot and Controlled

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love this mug. I bought a black mug but could not see coffee in it because I drink it black. I gave the black mug to my wife and I bought this white one. I set this mug to 130 degrees, my perfect drinking temperature. I watch TV in the morning while getting ready for work and the battery life is sufficient for that. Putting a lid from my thermal mugs keeps the coffee warm for a longer period. I have a charger on my desk and it keeps my coffee warm all morning. My only con is that the charging base stopped working 13 months after I bought the mug. I have the Total membership but I have to have a tech look at the device before they will warranty it. Not a big deal. Be sure to buy the extra warranty as it covers all you BestBuy purchases.

    I would recommend this to a friend
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