Memorial Day SaleEnds 5/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Angle. Ember - Temperature Control Smart Mug² - 10 oz - Black.
  • Left. Ember - Temperature Control Smart Mug² - 10 oz - Black.
  • A smarter way to drink coffee. Experience the comfort of consistently hot coffee (or tea) at your chosen temperature. Simply, set your temperature down to the degree in the Ember app. 137°F. App includes: Personalized LED color options, Recipes and how-to guides, Tea timers and more. Off D0 DO Presets. Timer. Download on the App Store. GET 1 ON Google Play.
  • Design & Precision: Our award-winning design not only looks beautiful on your counter but precisely controls temperature like no other smart mug on the market. Ceramic Coating: Enjoy the pure taste of your coffee. Precision sensors detect liquid level and temperature.
  • Beyond insulation: 10 oz capacity, 90 min battery, Smart LED indicator (50C - 62.5°C), ember Z Auto Sleep, Bluetooth when not in use, connection to app.
  • "Make it last ember: Keep your drink at the perfect temperature all day when placed on the charging coaster. Add a Sliding Lid (sold separately) and double your battery life."
  • Ember VS Others: Get to the perfect temperature faster and stay there longer with Ember's patented technology. It features all the benefits with none of the drawbacks. Ember Mug: - Normal Mug: 180F - Double Wall Vacuum Insulated Competitors: 160F - TOO HOT: 140F - Goldilocks Zone: The perfect drinking temperature - TOO COLD: 120F - 100F - TOO COLD: 0 hr - 30 min - 1 hr - 1.5 hr
  • What's Included: 1. Ember Mug: 3.3 inches (83.2 mm) 2. Charging Coaster: 4.2 inches (106.7 mm) 3. Power Cable: 4.3 inches (109.2 mm) 4. 10 oz (295 ml) capacity 5. Weight: 14.5 oz (410 g)
  • At home or on-the-go Whether you want to make the most of your morning at home, or head out the door, there is an Ember Mug to suit your lifestyle.
  • Give the gift of warmth. The perfect gift does exist. Whether they are a coffee connoisseur, a daily drinker, or a weekend warrior, they'll benefit from a superior beverage drinking experience - one they'll thank you for all year round. Ember.

Ember - Temperature Control Smart Mug² - 10 oz - Black

Model:
CM191000US
SKU:
6367424
Highly rated by customers for:
Loading...

Customer reviews

Rating 4.5 out of 5 stars with 1560 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.1 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

Pros mentioned filter

Cons mentioned filter

89%would recommend to a friend

Customers are saying

Customers find value in the Temperature Control, Overall Performance, and Ease of Use of the Temperature Control Smart Mug² - 10 oz. The design and color are also appreciated by some customers. However, some customers have expressed concerns about the battery life and size of the mug. Other drawbacks mentioned include the price, connectivity, and capacity.

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 35 Showing 681-700 of 1,560 reviews
  • Pros mentioned:
    Temperature control

    Works ok

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works good. Keeps warm but the longer it sits the more it tastes burned

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

    Best coffee mug!

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

    Best coffee mug ever! Love how it keeps my coffee hot all the time.

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

    Nice quality!

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

    Very nice and made well. Easy to use with app. Love it!

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Nice product

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

    Nice working, I like it. Enjoy my fresh coffee every morning!

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - White

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

    Bella

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

    Yes, love this mug. Keeps my coffee just the right temperature.

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Stainless Steel

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Christmas gift

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Gave as a gift to my sister. She loves it. Uses at office and home

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Stainless Steel

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

    Coffee mug warmer

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

    This was a gift for a loved one for the holiday. Definitely good to keep your coffee warm. Especially if you’re the type that may forget about it. Would recommend

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

      Hi Courtney, thanks for leaving a review! We're excited to hear the Ember was gifted this past holiday and hope they're loving their mug - thank you for you support! Ember

  • Pros mentioned:
    Temperature control

    Love this little thing.

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

    I was very skeptical to purchase a coffee mug at this price. But wow. I love this thing. My coffee stays hot for at least two hours. Totally changes my morning coffee.

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Stainless Steel

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

      Hi there, thanks for leaving a review! We’re glad to hear you’ve been enjoying coffee at your perfect temperature in your Ember Mug! Ember

  • Pros mentioned:
    Temperature control

    Gott'a have for Zoom Meetings

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

    I love this mug, I purchased one for my daughter who has lot's of ZOOM meetings. It's great to have perfect temperature coffee right down to the last drop!

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

      Hi Coffeewarmforever, thanks for leaving a review! We're excited to hear you gifted an Ember to your daughter and she's been enjoying it since! If you have any questions or concerns, please let us know. Thank you both for your support! Ember

  • Pros mentioned:
    Ease of use

    Ember temp control smart mug

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

    so easy to use. love the convenience of the cup. Would buy it again.

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Stainless Steel

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

    HOT

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

    This little cup is great yes it keeps the coffee hot, but just not long enough for me, Keeps it hot for 1 1/2 hours. I am a slow coffee drinker LOL. It’s a KEEPER.

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

      Hi Ally, thanks for leaving a review! We hope you're still enjoying your Ember and appreciate your feedback regarding battery life as we continue to improve - if you have any questions or concerns, please let us know! Ember

  • Pros mentioned:
    Temperature control

    Great for coffee drinkers

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

    Absolute best investment for my coffee drinking mom. She LOVES this. Works great. Totally worth every penny!

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - White

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

    Bluetooth coffee cup

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

    This was purchased as a gift and has been the only coffee cup used since receiving it. It holds the desired temperature of the coffee for quite awhile.

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

      Hi there, thanks for leaving a review! We're excited to hear you gifted an Ember and it's been their go-to mug since - we appreciate your support! Ember

  • Pros mentioned:
    Overall performance

    Great Buy!

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

    I bought this as a Christmas gift for my dad and he loves it!

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - White

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Perfect Gift

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

    Purchased this as a gift for my son. I honestly didn't know if he'd find it useful. He LOVES it and uses it on a daily basis. Is it pricey? Yes. Is it worth it? Yes!

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Stainless Steel

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

      Hi there, thanks for leaving a review and sharing this! We're glad to hear your son has been enjoying his Ember and uses is daily - thank you both for your support! Ember

  • Pros mentioned:
    Temperature control

    Great purchase

    |
    |
    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My wife loves to use this it keeps your coffee the perfect temp

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

    Great product and customer service

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

    Always a great experience with Best Buy, also have used this cup daily, and have not used normal mugs since getting this. Simple set up, I actually get to finish my cups now!

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - White

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

    Perfect for my morning coffee!

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

    Love it! Perfect for my morning coffee. I pour it, go into a meeting and now don't have to toss or reheat.

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Red

    I would recommend this to a friend
  • Cons mentioned:
    Battery life

    Mug

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

    Great product, I purchased for wife during the holidays. Only complaint is the battery life

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - White

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

    gr8 mug

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great coffee mug stays very hot good battery power button best keep charging port nearby

    This review is from Ember - Temperature Control Smart Mug² - 10 oz - Copper

    I would recommend this to a friend
Page 35, Showing 681-700 of 1,560 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.