Customer Ratings & Reviews

This would be a great travel mug except for one thing. It doesn't work very well once the battery dies. My wife complained about her coffee getting cold and I assumed she was doing something wrong. I tested it myself and sure enough once the battery dies (in less than 2 hours) the coffee starts to cool. Although this looks like it would be insulated it's not. My $15 travel mug keep my coffee hot almost 3 times longer, without a heating cool. Needless to say I've returned the mug.

This cup is great. I love that I can personalize it. I would have gave it 5 stars but the battery life isn't the best. I would say about 2 hrs off the charger I would need to recharge it. If I took it on a road trip. I wouldn't be able to keep my coffee warm for very long. Also, it only holds 10 oz. I love my coffee so I wish they made a larger one.

Very excited to get this for my father in law who is a coffee aficionado, loves apps and all things technology. Design is slick and idea is spot on. Disappointed in execution and value. The battery life with travel is only lasting for about 45 - 60 minutes despite being less than a month old. I read the reviews and felt it was worth a try, but now feel that it is overpriced and not ready for prime-time until they can improve the battery life or longevity of temperature control. I feel the marketing is purposefully deceiving as well, given that every picture I have seen has the temperature set at 134, yet they constantly remark that 130 is what they use as a standard for how long the battery should last.

Not a cheap travel mug, even when it's on sale, but overall it does as good job of keeping my coffee at a constant temperature so I can enjoy it much longer. If you need to keep drinking beyond 2 hours, you really need to place it on the charging coaster so the battery doesn't run out. I wish that the charging coasters weren't so expensive as I would like to have one at home and work.

I am an avid, all day coffee drinker. I was very excited to purchase this product, especially after a friend told me about theirs. After using the mug for two days, I was not satisfied and ultimately returned it (I never return products). Here’s my take: 1. The battery lasted less than an hour, so you had to keep it on the charger for it to be useful. I tend to walk around my office and refill my coffee on the go, so the battery prohibited prolonged use. 2. It wasn’t well insulated, without the battery my coffee cooled down rapidly. Coupled with the short battery life, I could’ve just just used a ceramic mug. 3. Price. This is an expensive mug, I expected more for the price. I happily went back to my popular brand cooler/cup company mug that I’ve used for the past 5 years.

Now have 2 of these. They do such a great job keeping the liquid at a constant temp. Only issue is that they still don’t hold a lot, Max on the travel mug says 12oz but it seems like less. Love the feature of adjusting the temp without the phone by turning the base. Worth the purchase when on sale for $80.

Love the product. Knowing the liquid inside is at your preferred drinking temperature is heavenly. Purchased May 10, 2019. Now, May 11, 2020 and the battery wont charge anymore. But it will keep the liquid at set temp while on the charging base. Too bad we can't replace the battery and even more unfortunately, the replacement travel mug2 got a price increase.

Got this for my wife and she loves it and has been using for 2 months. A few things that would make it better. - A 24 or 33 oz size. This is 16. - longer battery life. She is a teacher and can’t drink right away - ability to purchase a second charging plate. Recharge at work Or in the car

This is a nice cup, it is not designed to heat or chill your beverage. It is designed to maintain a temp for a longer than normal period of time. Which it does well, however it will not last more than a few hours. If you can not afford the cup comfortably, a near by microwave will suffice. Nice to have, but I would not purchase it again.

Really nicely designed cup with fun bells and whistles. The big sticking point, as others note, is poor battery life. Wish it came with a second charger, maybe a USB or car charger, to help compensate. Because I got it on sale I don’t mind this drawback as much as if I’d paid full price.

Nice to keep things at a specific temperature but battery life is short, and it's expensive.

This mug is shortlisted as one of my Favorite Things, right after my dog. It's so nice to make a cup of coffee and then get busy doing something else, and when I come back to it my coffee's still a perfect 140°, right where I left it. Also of great importance, I was an early backer on their crowdfunding campaign, and when one of their early prototypes failed, they couldn't have been quicker to replace it. Great people!

I purchased one of these as a gift for my wife, who drinks hot tea all day all winter months. She loved it so much she had to purchase one for me for my coffee. I thought it was a way too expensive purchase for me to have one for my morning coffees (I drink 2 cups each morning on average). I am so glad she bought me one. I will be busy working and forget my coffee, and just got used to sipping on it when I remembered it was there, as it got colder and colder. This past week, I'll remember I have coffee to sip, and it's still at the perfect temperature. Expensive for a mug, yes, but now totally worth it in my mind, now that I've have one - and I don't want to go back to a regular mug again. My wife obviously loves hers, and bought an extra charger to keep it going all day around the house so her hot tea stays the perfect temperature all day.

I received this as a Christmas gift from my husband last year because I typically warm up my coffee 2-3 times. I so badly wanted to love it, I do love the concept but I just couldn’t justify paying $170 with tax when the battery only lasted an hour. The battery life needs to be longer especially for that price tag. I keep checking for a new & improved product because I would definitely invest in one, once they’re able to extend the life of the battery.

the only reason why i got this was because it was on Deal of the Day Sale. Even so, I feel like its wayyyyyy over priced at $79.99 on that day (usually $150 on reg price before taxes). The battery dies really, really fast, and it relies a lot on the battery to keep the drink warm. In my opinion, even the cheapest thermal tumbler does a better job at keeping the drink warm. There have also been multiple times already when ive just taken it off my keurig brewer and the led lights, as well as the app would tell me that the cup is empty, and what i found to be the only way around it is to turn it off then back on for no less than 3 times before it actually works. The only cool thing i can possibly point out are the LED lights thats pretty much the only thing that makes it customizeable.

This should not be confused with a vacuum chamber mug, there is quite a bit of tech and insulation inside this device after checking out a few bits of reviews. But what this mug is excellent at is making sure your drink is at just the right temperature for 2 hours on battery. 3 if you don't mind the coffee being a bit cooler after the battery dies. Don't get this mug if you expect to be away from a designated wall plug for more than 3 hours, but otherwise, get this if you are a bit vagrant or clumsy. Otherwise, the ceramic variants will probably be a better fit. That being said - the lid to this does not leak even when tipped. It's quite a nice design.

This mug is perfect for those who like to have tech products it works really good in terms of keeping your heat exactly where you want it. It is a bit expensive though so you might want to shop around or wait till the price drops. they should offer a extended warranty with it which they don’t

Honest and personal review would be I thought it would be and still could be a perfect gift for all coffee lovers, this is the 1st gen ember and it didn’t heat up properly and malfunctioned for us. It is an amazing gift and item if it can be used to its full potential.

Nice mug-stays warm.....if you use the optional open lid....battery drains pretty quickly....but perfect to keep on coaster at office desk and use throughout the day between various offices/meetings.

good investment. Wife purchased it for me to use while I'm over the road. Only con is the battery life, it could be better. Love that it keeps coffee at temp that I like.