The Ember smart mug is pretty good but not great. The 10 oz is not big enough but the 14 oz is too expensive. I would definitely buy the 14 oz version if money is not an issue. It’s too expensive for what you get. That said, I make a cup of coffee in a 15 ounce cup. When the 15 ounce cup starts getting cool, I dump it in the 10 ounce Ember mug. Not very convenient. The battery is really bad. Believe the other reviewers when they say this. You must keep it on the charging station if you do not want this to die. If they can make a 14 oz cup with a long lasting battery at a reasonable price, this could be an awesome mug. I’m giving this 4 stars instead of 3 because the app is awesome. Pairing is easy. It will alert you when your coffee is at the correct temperature and if you can keep it on the charging base, you will not have issues. The app has presets for tea, water, coffee, etc. Overall the mug is pretty good, but consider buying the 14 oz version if the price decreases.

This was a birthday gift for my wife. She isn’t much into tech items, but she loves her morning coffee. She absolutely loves this coffee mug and hasn’t used anything else since getting it. It seems to be high quality and easy to use. We linked it to her phone and she enjoys getting texts from the mug. Attached is a picture of a text she just got saying the coffee is ready. We originally got her the 10oz mug but it didn’t leave enough room for her massive amount of creamer she likes to use so we upgraded to the 14oz one which is perfect. She likes that this mug helps keep the creamer from cooling down the coffee. We highly recommend this mug but it is a little pricey.

Overall the mug is very cool and gets the job done. The battery will last about 75-90 minutes at most while heated which is nice, but for me that's not always long enough. But in general the thing is pretty cool, the app works well, and is worth it if you're a slow coffee drinker. My only thing would be to get the larger size next time as the 10 oz is on the small side.

This item was a repurchase for me after the first one developed battery issue and was out of warranty. I drink a cup of coffee every morning, and I would often sat my cup down due to the coffee being to hot only to find my coffee warm and much too cool for my liking upon returning to it. That problem is a thing of the past with this cup. I can set the temperature I want and when the coffee cools to that temperature the cup maintains it very well. Perfect! I would have gave it 5 stars if I didn't have to repurchase it, however it's hard to make do without it!

So far it's amazing but an 8 oz keurig dispensed with cream and sugar does not fit this very well I would go with the bigger size if you like cream in your coffee ! But it has definitely kept it cozy!