Customer Ratings & Reviews

This is my third cup once you have one it’s hard to do without it.the first one lasted about a year and a half the second one was new and didn’t perform as well as the first one so I took it back. The one I have now works so well the coffee burns your mouth. Great cup

I loved using this mug for the 18 months it lasted for. It kept my coffee hot for a few hours, longer if I let it sit on the charger by my desk. First the good: When it works, it does a good job at maintaining the configured temperature. It's a great concept, isn't too heavy, and has a decent battery life if you enjoy sipping coffee or tea. The ugly: After 18 months, the ceramic coating began to flake off the lip of the mug. I only ever washed it with a soft bottle brush. Ember claimed the coating was FDA approved so would not harm me if ingested and offered me 20% off of a replacement mug which costs almost as much as the retail packaging. Since I'd rather not like ceramic flakes with my coffee I'm no longer using the mug, and given how expensive the mug is, I'm not considering replacing it. The bad: the software just isn't great. It constantly tries to pair with the mug and requires periodic factory resets to fix pairing issues, causing me to lose my mug customization. Physically powering off the mug and force killing the android app seems to prevent these issues. Ember doesn't have an e-waste recycling program for when the battery hits its end of life, and it's not replaceable. They encouraged me to bring it to Best Buy for recycling instead. When the battery runs out of power, the existing insulation in the mug does a poor job of maintaining temperature as well- I get better thermal performance from a ceramic mug. Conclusion: gets bonus points for a neat idea, but if it's only going to hold up for 18 months, I say stay away. Buy a dishwasher safe sealed insulated mug instead- it may not maintain the temperature with the same precision, but it'll last longer and is significantly less costly.

My husband and I both have one. Mine is three years old now and his is one year old and they still work great and love them! I can sip on my coffee and it stays warm for almost 2 hours.

Expensive, but it does exactly what it promises. I was able to buy mine in the BB sale, despite wanting one for months just couldn't justify full price. Super easy to set up and the phone app lets you monitor progress and status. Value for money - depends on your point of view, but keeping your hot drink hot - brilliant!!!

I bought this for my wife 2 months ago. She drinks her coffee rather slow and it always got cold before. Now using the Ember Mug, she easily controls the coffee temperature via her iPhone. Now it never gets cold! She only uses it once a day (morning), so she has never ran out of battery life while drinking. I would recommend the large mug, she usually makes a cappuccino with 2 shots in it and it’s barely big enough. I would have regretted getting the small one.

The Ember mug works well for tea, and there is a setting for green tea, which is what I normally drink in the morning. The mug keeps the tea at the temperature that I prefer all day. Without the charging base, the battery goes out in about an hour, so I keep the base plugged in and the mug keeps the charge all day. One negative is my Android phone does not keep the blue tooth connection.

Awesome addition for a coffeeholic. Great temperature controls and nice ergonomic design.

I received this item as a gift. It has changed the way I enjoy coffee each day. I don't know if I'll ever be able to use another mug again. It works perfectly at keeping my coffee at just the right temperature. I have found the App to be very helpful and easy to use in setting how hot I would like my coffee to stay at. This mug even heats my coffee up after I've added cream! I can't say enough about how happy I am with my purchase. I am now working to convince everyone in my office to get one too!! It's a luxury you will enjoy!

A little costly, but worth it. Now I never have to worry of my tea or coffee going cold.

Easy to use, sleek design and keeps liquids at perfect temp

I really enjoy that the mug keeps my coffee hot for nearly the entire length of tha battery life. The app was easy to pair with my phone and i love the ability to control the settings from the phone.

This product does really keep the coffee hotter for a long time. It really works.

Bought this for my wife as a Christmas gift as she always complains about her coffee getting too cold and loves it hot. Bought this on a whim and it does not disappoint. She has made comments it's one of the best surprise gifts I ever gave her and that she loves it. After ~1 year the charger stopped working due to the pins getting stuck and their customer service sent a new one right away at no cost.

My husband is a slow coffee drinker and was always have to reheat his cup. This ember cup has been a great solution. I recommend purchasing the larger cup if you are using a Keurig type machine.

As advertised keeps coffee at a specific temp that is flexible to what you want, easy to use. Downside is you cannot use regular silverware, it can scratch the coating. I use wooden stirrers and it works fine.

I like the cup but it is a bit on the heavy side. The concept is great and it does keep my coffee warm. The coffee comes out of my Kuerig at 156 degrees, which must be about normal but the highest setting for the cup is 145. I don’t think I get the full 90 minutes of battery life with the setting at 145. It’s a great concept, I just wish it could keep my coffee hotter.

This cup is both intuitive to use and set up, and does what it says! As a busy household, many a cup of hot stuff (tea/coffee, chocolate) has been thrown out for going cold. This keeps it toasty and drinkable for hours without it going stale. Would recommend.

I like the design and comfort of the handle. The flat design is the most comfortable for holding/gripping the mug.The lip is not thick also. I've had no problems with the app. Too bad the battery only lasts 1 1/2hr. before charges. The price is a bit excessive, but Im keeping it.

The ember mug exceeded my expectations. The mug feels high quality and looks really nice as well. It keeps my coffee just as hot as I poured it till the very last drop. It cleans up well, the app is simple and easy to use, and the charging feels futuristic. I would recommend this to anyone who hates when their drinks get cold, this is the perfect solution.

The mug itself is great and is a game changer for people who take their time enjoying a cup of coffee and who sometimes set that cup down and forget about it until it’s too cold. I’m sure building this isn’t cheap but the fact that I waited for it to go on sale, used a gift card for part of the cost and it STILL was too expensive is a huge disappointment!