Customer Ratings & Reviews

I purchase this for my coffee-drinking girlfriend. She is a slow coffee drinker and has to reheat her coffee in the microwave several times each morning. I thought this would be the perfect gift, and she loved it. It works exactly as advertised. The cup stays warm and there is no more use of the microwave for this task.

Works like it is advertized. Keeps the liquid hot for a long time

Keeps hot drinks the perfect temp, works great for coffee and tea. Easy to keep clean and use.

Keeps coffee hot! Wish it would last just a little longer and was a little less expensive.

I was reluctant to buy this mug. I have been looking into getting one for a few years. Once the 14 oz version came out I was even more interested. So far the Ember meets and exceeds my expectations. It is great to have a hot cup of coffee all the way to the last drop. It was even a little weird to not have to drink cold coffee on my last sip. I have only had this mug for a short time but I am very pleased.

My wife and I always fight the temperature of our coffee in the mornings. We no longer have to do that when getting distracted with the kids and their activities. All I have to do is place it on the charger and come back hours later to a perfectly hot cup of coffee... It's so awesome! Be sure to blow out the bottom since water likes to hide in the grooves (it's waterproof but just to be sure).

Easy to hold, maintains perfect temperature for 3 hours with the Ember lid accessory.

I really like this mug and use it every day. It's nice that your coffee stays hot. I'd give it 5 stars, but even at $50 off, it's really expensive. I'm sure that with all the technology built into it, it's worth it, but it's still an extravagance.

I really like the cup. However, unless you purchase the lid that goes with it, you’re gonna constantly have a film on top of your coffee. Also, the cup doesn’t stay fully charged even when on the charger maybe 80%. but most importantly, it keeps my coffee, hot all day.

Best Father's Day gift I've ever received! My wife has gotten me gifts such as VR headsets but this thing has been my best gift! I can set the temperature to exactly what I like and my coffee/tea stays at that temperature all the time!

Absolutely love this mug. I wish I had a copper edition, but the steel also looks beautiful. I got this as a gift from my wife and I love it.

Love this!! Keeps my coffee hot all day long. Highly recommend

This is a must for anyone who microwaves their coffee 2-3 times before they finish it. It’s also a perfect gift because it’s one of those things that you wouldn’t buy for yourself, but you would love to own. I also feel like a baller whenever anyone asks me about it at work.

Changed the way I caffeinate. Used to keep topping off my drink to keep warmth, have now cut down to about 2 cups a day since drink stays warm until the end. Set in coaster charge at end of day and it's good to go always.

Ok so a lot of reciews of these come from people wirh unrealistic expectations. It does everything that it is advertised to do. If you want something warm 2+ hours in great condition after you make it? Put it in the mug, and leave it on the charger and you have hot perfect beverage almost forever.

The mug does an excellent job at keeping the coffee warm. The app is a bit finicky and needs to be updated.

love this cup, keeps coffee hot. I love the new size too.

My parents love this cup. Keeps their tea warm for hours.

I never knew I liked my coffee consistently hot until I had this mug. Now when I’m not using it, I noticed the temperature declining without it. I absolutely love it! Super convenient. Have bought a second one for my office. 

I've always enjoyed coffee, but I don't like it too hot, and I don't like it too cold. First world problems, I know. However, my Ember cup has changed my world. I make a cup, wait until it reaches my set temperature (128), and then start sipping it. Amazingly, my coffee remains at 128 degrees from that first sip until the last one. If Maxwell House had not already used the phrase, "good to the last drop", then I would apply it to Ember, which would be more true. This thing is worth it!