Customer Ratings & Reviews

If you like for your coffee to stay hot this is the perfect cup. Love that it is like an expensive cup with its slim line design. We chose black. Totally recommend this product.

Got this for my mother for her birthday and she loves it. Easy to use app is well designed. A little connectivity issues at first but was resolved with updated software.

This mug is amazing. I am currently a college student who is doing all of my classes online and having my coffee be at the perfect temperature all day simply makes my life a little easier. I used to always get up and microwave my cold coffee to the point it was too hot and by the time I let it cool, it would always be cold. I love being able to control the temperature on my phone. I recommend this product to anyone who is an avid coffee drinker!! Best Buy College Crew members receive products to write honest, unbiased reviews. Reviewers have been provided products free of charge and may have received nominal compensation

Price is steep but works well. It's stylish and keeps coffee warm. I wish it was a few oz larger.

I really like this cup. It is easy to operate and I no longer have to drink cold tea. I like that I can change the settings from my phone.

Love this cup! I never accidentally reach over and gulp cold tea or coffee anymore. It reheats and, I can control temp from my phone too. Just wish the larger size was available.

While it’s great to have your coffee never get cold, the max temp by design is 145 deg. Not hot enough for my palette. I’d imagine it’s avoiding some litigation? And be prepared to keep the mug on its stand as the battery dies quickly, probably due to the fact that I have the highest temp selected. Still I no longer have to microwave my coffee to warm it up. If it went several degrees hotter, 4 stars. Would still recommend despite the shortcomings

I love HOT coffee through the last cup and this makes that happen, does not "cook" the coffee and app gives me ability to adjust. Handle is perfect, and rim is not thick so that is perfect too........only thing is that is hold a cup size not a mug size of quantity, but for my expresso maker its perfect.

Works as well as advertised. Keep in mind that you do not want to leave the drinks in there for too long as you are essentially cooking your drinks. They will develop some strange flavors after enough time. The app works fine, but the mug is completely unusable without it which is a bit of a negative. Also a tad expensive for what it does.

Keeps my coffee warm, love it. Great size too, normal size cup of coffee, easy to use. Great for working from home next to my desk.

I got this om a whim cuz i like gadgets. But it does keep my tea nice and warm at various temps as long as there is liquid in the cup. There is a tea timer in the app which is nice touch. Even tho you can color code it, i’d prefer to just name them. I have two of them.

My wife loves the mug. She uses it at work and her coffee or tea stays hot for hours

Works as advertised. Battery lasts only for 30 mins and this version i bought can’t hold that much liquid. App is a little wonky too

It works well. Warms drinks nicely. Good Build Quality

I got this for my wife for Christmas. It's amazing how much of a difference it makes when your coffee is continuously at the ideal temperature. Sure, it seems like a lot to spend on a mug and it certainly isn't for everyone, but any coffee aficionado will love it!

Got for my daughter who always likes her coffee hot while she's drinking a few cups during her work meetings. She loves it! So I decided to get one for myself BUT I use a Keurig coffee maker, always making an 8 oz size cup--problem is I like a lot of cream so I realize the 10 oz cup will be too full, need to get a 14 oz Ember mug! Hopefully it will be on a Deal of the Day soon!

This is the best gift I ever received for my morning coffee at work. Coffee typically gets warm, then lukewarm, then cold as I take too long to drink it as work mixes with my coffee time. Ember solved all of that for me. My coffee stays at a consistent 135 degrees through the entire cup regardless of the time frame. It’s the best!

The perfect gift for the coffee drinkers in your life. Easy to use, easy to clean and provides a clean design throughout.

My husband and I are serious coffee drinkers, and had recently taken to nuking our coffee to keep it hot enough. These cups were an extravagant gift to ourselves and we're thoroughly enjoying them. Our experience has been great, up to and including using the Android app to control temperature and a couple other features. Very pleased. I've ordered another so that I can keep one cup charging while one's in use -- again, very serious coffee drinker here.

Love having hot coffee all morning long easy to use, perfect for all hot beverages. Perfect for my at home office.