Skip to contentGo to Product Search
Gift Ideas
Main Content

Customer Ratings & Reviews

No content
  • Angle. Ember - Temperature Control Smart Mug² - 14 oz - White.
  • Left. Ember - Temperature Control Smart Mug 2 - 14 oz - White.
  • 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. Download on the App Store or 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 ember.
  • Beyond insulation: 14 oz capacity, 80 min battery, Smart LED 120F - 145F indicator (50C - 62.5 62.5 C), 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 (120F) - TOO COLD: 100F Time: 0 hr, 30 min, 1 hr, 1.5 hr
  • What's included: 1. Ember Mug: 3.46 inches (88.0 mm) 2. Charging Coaster: 4.60 inches (117.0 mm) 3. Power Cable: 4.5 inches (114.7 mm) 4. Ember Mug: 4.4 inches (112 mm) 5. Ember Mug: 70 inches (1778 mm)
  • At home or on-the-go, there is an Ember Mug to suit your lifestyle. Whether you want to make the most of your morning at home or head out the door, Ember Mug is designed to keep your beverages hot or cold for an extended period.
  • 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 Mug 2 - 14 oz - White

Model:
CM191402US
SKU:
6427209
Highly rated by customers for:
Loading...

Customer reviews

Rating 4.5 out of 5 stars with 2300 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 often highlight the Temperature Control Smart Mug 2's temperature control, ease of use, size, color, and sleek design as positive features. However, some customers have expressed concerns about the battery life and price. Others have reported issues with the app and connectivity. Additionally, the cost of replacement charging coasters has been mentioned as a potential drawback.

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 77 Showing 1,521-1,540 of 2,300 reviews
  • Pros mentioned:
    Temperature control

    HOT COFFEE

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

    This gem is unbelievable! Keeps my coffee hot for over 2 hours!

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Blue

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

    Just WOW

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

    This gem is unbelievable! Keeps my coffee hot for over 2 hours!

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

    Great Gift

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

    This gem is unbelievable! Keeps my coffee hot for over 2 hours!

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

    Great mug.

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

    Excellent mug. Keeps things as perfect temperature. Great app.

    I would recommend this to a friend

  • Get it!

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

    Works great! This was a gift and they loved it! Fast shipping and delivery too!

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Copper

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

    Great mug

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

    I really like this mug, keeps my coffee hot all morning. Easy to charge and set up.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

      Hi there, thanks for leaving a review here! We're glad to hear you've been enjoying your Ember Mug so far - if you have any questions or concerns, please let us know! Ember

  • Pros mentioned:
    Temperature control

    Best cup ever

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

    Love love love this cup!!! It keeps coffee warm and it is easy to clean.

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

      Hi Nana, thanks for leaving a review! We're happy to hear you've been enjoying your Ember Mug - if you have any questions or concerns, please let us know! Ember

  • Pros mentioned:
    Temperature control

    Hot coffee!

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

    2nd Ember - love having hot coffee to the last sip.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Blue

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

    Ember Mug

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great for those coffee drinkers that prefer to savor their morning drink

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

      Hi Keaston, thanks for sharing this and leaving a review! We're happy to hear you've been able to take your time drinking coffee at your perfect temp in your Ember Mug - we appreciate your support! Ember

  • Linda

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

    Love Love Love my Ember cup !!! use it daily . i am finally able to finish a FULL cup of coffee without running to the microwave to "REHEAT" For sure a Great Gift for anyone who likes hot beverages. Only wish is that i would love a faster recharge.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Blue

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

    Really nice

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

    Love it, it warms up pretty quickly, recommended for other people

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

      Hi Stef, thanks for leaving a review! We appreciate your support and we are thrilled to hear you love your Ember! Ember

  • Pros mentioned:
    Temperature control

    Great Coffee Mug

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

    Great buy. Keeping tea/coffee warm til the end is priceless.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Blue

    I would recommend this to a friend

  • Fragile

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

    The product is a great idea, reducing the need to constantly head to the microwave to warm your coffee, however, the design for recharging the mug is flawed. Having three dimensional pins on the charging coaster come in contact with a mug that is fairly heavy, is a design flaw. I bought two of these mugs, and ran into the same problem with one of the pins being pushed back into the coaster, which prevents the mug from being charged. Returned the item.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Sage Green

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

      Thanks for your feedback, Michael. While we are very sorry to hear you returned your Ember Mug, we are always listening to customers when it comes to our current and future product designs. Please know the Ember Mug includes a manufacturer warranty and our support team is always happy to help assist our customers with any issues. Ember

  • Pros mentioned:
    Temperature control

    Nice mug

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

    Worked great. You can adjust the temp to what works best for you

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

      Hi there, thanks for sharing this with us! We appreciate your support and hope you continue to enjoy your Ember Mug - if you have questions or concerns, please feel free to reach out to us so we can help! Ember

  • Good buy.

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

    Gift for my girlfriend. Got it on sale during Christmas for $100. Great price point. For an everyday coffee drinker, probably worth close to retail. For me, an occasional drinker, probably not.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

    Perfect....if always near charging coaster.

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

    Battery life is still the main drawback. Other than that is nearly perfect.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

      Hi Avaya789, thanks for taking the time to leave a review here! We're glad to hear you've been enjoying your Ember so far and appreciate your feedback about battery life as we continue to improve - if you have any questions or concerns, please let us know. Thank you for your support! Ember

  • Pros mentioned:
    Temperature control

    Great Product

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

    Great product! Really keeps it warm! And totally easy to use.

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

      Hi there, thanks for sharing this with us! We're glad to hear you've been enjoying coffee at your perfect temperature in your Ember Mug - if you have any questions or concerns, please let us know! Ember

  • Cons mentioned:
    Price

    Huge price tag but nice mug

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

    These mugs are very handy but the price tag is still too high for what you get.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Black

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

      Hi Madeleine, thanks for taking the time to leave a review here! We're glad to hear you've been enjoying your Ember and appreciate your feedback in regard to price - we're happy to share this with our team as continue to improve! If you have any questions or concerns, please let us know. Ember

  • Pros mentioned:
    Color

    Cup

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

    Nice producr would recommend nice color, very useful

    I would recommend this to a friend

  • Super

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

    Excellent article, I recommend it for daily use, the first class material.

    This review is from Ember - Temperature Control Smart Mug 2 - 14 oz - Blue

    I would recommend this to a friend
Page 77, Showing 1,521-1,540 of 2,300 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.