Customer Ratings & Reviews

Barely keep the contents warm, waste of money. Does not keep hot at all just luke warm and that is barely.

Terrible product. Stopped working after 4 weeks. Even worse company response. They know their product is failing and they will do absolutely nothing to make it right.

The mug works great. I love it. Only downfall is the staining on the inside from coffee. I have tried everything to get the stain out but nothing works.

I honestly thought it would keep the coffee hotter for longer. Wouldn’t buy again

Junk could get the app to working wasnt worth the money

Doesnt work well. In reality its crap. Dont buy this it lasted a week.

Not what I was expecting especially for the price. Does not warm up or keep a drink warm enough. Good concept though just not there yet.

This did not keep her coffee warm and we tried it for about a week and returned it Thanks Best Buy fir your return policy

It doesn't keep your coffee hot. It says 140 max.well you better hurry and drink it!!! It only tells you the temp

Quickly developed rust and charging port broke off

I like my coffee hot. This thing didn’t keep it hot, unless you drink it really fast.

Bought for my Nana as a Christmas gift and she has been obsessed ever since. She even figured out the app by her self, so ease of use is great. Quality materials! Four stars because she has said it lasts around an hour (not 80 minutes) and there are cheaper alternatives that claim similar results.

Unfortunately, it would not work - would not heat up!

So far it won't stay paired with my husband's phone and randomly fails to recognize the liquid at times resulting in a cold drink. Giving it a few more days to work out the kinks before calling customer service. When it works it works great

Does not keep coffee as hot as advertised. Does better when you keep it on charger

I was skeptical about this product for a few reasons and ultimately decided not to buy it after a clear thought about how excessive this thing is. A battery powered Bluetooth coffee mug that you can’t put in the dishwasher... not to mention creating heat with a battery has got to be the least efficient thing there is. I got one as a gift and this is the review- The battery lasts only about an hour. I used to wait till my coffee was the right temp then I’d sort of down it quickly. Now I wait for it to cool down to the desired temp, then sip it and obsessively watch the battery meter in the app so I don’t wait to long to finish my cup. I use a French press and so it gets cool in there and if I fill the cup with cooler coffee, I have to dump it back into a regular mug, microwave it, transfer it back into this thing, and obsess about the remaining battery. The battery level isn’t on the same page in the app as the temp details either so that’s inconvenient. If you fill your cup with really hot coffee, the battery can decline by 10-20 % by the time it gets down to your desired temp, which is strange. That all being said, it is nice for about 30 minutes when every sip is the same temp. 3.5 outta 5 stars and I’ll round up.

I love the color of the green mug, it is a well thought of when keeping coffee/tea warm due to it being cool fast. I just think the battery life is poor but understandable due to its size.

Got this as a gift and was excited for it. Have been using for a couple weeks. Like most have said, it is nice and handy but could use some improvements. The battery lasts just under an hour keeping your drinks warm. Ive found thay 140F is ideal temperature for me which is ar about 85% of the max temp the cup can reach. Battery dropped about 30% in 30 min It is definitely better than keeping an open mug and your drink keeps getting cooler. I guess was expecting something like a super hyped insulated cover mug for over 2 hours (box says 180 min battery life) but im guessing thats at its lowest temperature. Still nice. Glad i got it as a gift and didnt shell out this much for it. My non-electric Yeti keeps my drinks hotter for longer but they’re covered

A great product for a coffee lover. I like to enjoy my coffee. Small sips over a long period of time. And constantly zapping it in a microwave is annoying and also changes the profile of the coffee. And the warming coasters you can find work well but are hit and miss depending on the mug you use. This holds a set temperature for over an hour if you need it to. A bit pricey but it’s pretty much the only mug I use now.

Just passed two years of ownership with this mug. Best advice is to get the lid for this mug, as it will greatly extend the battery/temp control for each use! I usually got about 45-60min of temp control, however when I added the lid it extended it to over two hours!! I have noticed that the interior of the mug is now chipping enamel and leaching into my drink. I have just reached out to Ember to see what they can offer me moving forward. I will update this review when they respond!