Nextmug - Temperature-Controlled, Self-Heating Coffee Mug (Burgundy - 14 oz.)

Received product. Did not know needed Uk adapter for plug-should be in description. Otherwise would give 5 stars. However mug is fantastic. I set it on ‘hot’- lasts hours with cover on. Love this product.

When it works, it's great. However, it can sit on the charging stand all night and run out of power within an hour of it being removed.

Best of a bad lot re heating mugs. get hotter than most others but still not hot enough. a little fiddly to increase temp. tends to default to a different heat setting when it is turned on again - and it switches off spontaneously quite often hence this is a problem. keeps drink hot for about 45mins after a couple of uses i.e battery capacity degrades quite quickly, unsurprisingly given the amperes it has to deliver (pretty sure this will be the case with most heated mugs). very good looking and great design and a bit larger capacity than most. cleans easily. If you really want a heating mug then this a is a good one to buy, but beware they all fall short of expectations - I no longer use mine. I have marked it down because for what you pay it is disappointing - but then they all are - my advice = dont pay for any of these until someone makes one that is good looking and heats to a higher temp and lasts - I guess it will take a few years for that to happen...

Seems to work well, although reliability not known yet – others have reported poor battery life. One negative is that although it comes with a universal (i.e. 110/240 v AC) charger, it has a US plug, so you will need an adaptor.

There is no specific mention (that I can see) in the product information that says it only comes fitted with a US plug. US/UK plug adapter needed.

Bought as present. The recipient loves it and uses it everyday. Highly recommended.

Lo di a mi esposo para Navidad. Le encanta. Lo trae con el todo el tiempo! Puedo recomendarlo a todos que disfrutan su cafe!

At first great, does yellow with coffee but the aftr 9 months the battery will not keep its charge anymore. Tried customer support with no success

As a previous Ember owner, I'm very impressed with the NextMug. I decided to try the NextMug mostly because the little prongs on the Ember charge plates kept seizing up needing replacement of the charge coaster. It's hard to keep them dry all the time since they are always around liquid. Infrequent contact with liquid and the relatively weak springs under each charge contact prong, has resulted in 5 of my charge coasters seizing up over 2.5 years. I thought the elevated design of the NextMug's charge plate would result in them being less prone to seizing. We'll have to see about that over time. I also, of course, loved the price differential. The NextMug is substantially cheaper than the Ember. I also liked the many colour options. I was, however, concerned that at the lower price the NextMug would be of inferior quality. IT ISN'T. Indeed I prefer the shape, 'feel' and build quality of the NextMug over the Ember. I also prefer the colours. With Ember you can get any colour you want as long as its black or white (or at least that used to be the case). With NextMug you get a terrific rainbow of deep pastel colours to choose from. I've used the NextMug now for 6 months and love it. I like that I can use it/set it up without the need for an app. There is/was little value in the Ember's app other than being able to see how much battery was left - and it was a rather clunky app. It always takes time to sink up and the only thing I needed it for, the battery level indicator, wasn't on the home screen. You had to dig down to find it. The NextMug shows you right on the mug what your battery level is. The ONLY downside to the NextMug is that you have to turn it on. Ya, I know, quality problem to have. But after a couple years of the Ember Mug just turning itself on each morning when I poured coffee into it, I can't tell you how many times I have forgotten to press the On button on the NextMug to find lukewarm coffee when I take my first sip 20 minute later. That said, when I press the on button the coffee is piping hot again in just a few minutes. I've had the NextMug for 6 months now and I still forget to turn it on about half the time. Grrr! Old habits die hard. My hopes for a better charge plate, so far, have not been realized. About 6 months in the NextMug charge plate had to be replaced. It wasn't because the prongs seized though. In this case one of the two prongs broke off when I was cleaning it. There was a bit of gunk between the two prongs and I was cleaning it out with my fingernail and one of the prongs sparked and broke off. I wasn't pushing hard. I was purposely cleaning out the 'gunk' because I believe the gunk that had built up over time between the Ember prongs was part of the reason why they ultimately seized up all the time But the warranty replacement process was simple. All I had to do was email NextMug and ask for a replacement charge plate and they sent it out to me. I didn't need to show a proof of purchase or a picture of the damaged plate. They took my word for it. Ember also replaced all their broken charge plates (5 in total over the 2 and a half years I used it) within the one year warranty window. (Note: I had to buy two replacement ones of my own during that time after the warranty on the original and a replacement had ended). To replace under warranty, Ember required me (not unreasonably) to show proof of original purchase (a screenshot of my Amazon order) a photo of the damaged plate, and a photo of the serial number on the bottom of the damaged plate before they would send out a replacement. A bit more work than NextMug. That said, the NextMug person said that if I had needed a warranty replacement on the mug itself, then I would have had to have shown proof-of purchase. But not on charge plate warranty claims. Over the 2 plus years I used the Ember, the inside white coating had worn off making the inside looks really ugly. Also the life of the battery had more than halved. Meaning at the two year point the battery only lasted about 1/3 as long as when new. I'm guessing that the battery life of the NextMug will run down about the same over time too - like all rechargeable batteries do. Since I've only had it for 6 months so I can't compare them. But I also think the build quality and terrific interior coating of the NextMug will outlast that of the Ember. But I won't know that for sure for another year and a half. I wish BOTH companies had a little replacement charging nodule that could be swapped out of the charge plate. Maybe send a few extra with each mug because that is clearly the Achilles Heel of both products. The part that consistently failed on the Ember and, so far, has failed once on the NextMug. There would be no need to replace the entire charge coaster and charge cable if that little part that keeps breaking could be easily swapped out. I bet it would also save them a ton on warranty repair costs and shipping for them and such a swappable part would probably add only a $1 to the cost/price of the product. All in all, for the significant price savings, the build quality and the colour options and terrific customer service, I now recommend the NextMug over the Ember every time.

Beautiful..

2nd UPDATE: It is now April 2026. A sad day. It seems that the mug no longer heats up, even when sitting on the charger. Time to be replaced. Total lifespan was just about 2.5 years for anyone looking to purchase. UPDATE: It is now May 2025. About a month ago, I noticed that the mug no longer held a charge after about 5 min. I sit near my coaster all day anyway (desk job) so I just kept it on the coaster and it was fine. Unlike the Ember mug I had, this still kept things hot while on the charger. But now I'm also noticing it seems to auto shut-off after about an hour or two, so I have to keep an eye on it to make sure it doesn't turn off. I'm a sipper so, yes, I do take hours to drink a mug of whatever! *************** I purchased this mug in Nov of 2023 and wanted to give it a good, long use before reviewing. I had previously gotten and used another, more expensive electric mug which is sold in all the stores at Christmas time. With THAT mug, you could set the temp of your mug via their app to a specific number and that was nice so I didn't expect to like this mug as much. But with the other mug, the coating inside the bottom wore off in about 6 months from stirring and after about a year, it really didn't keep my drinks piping hot anymore. With THIS mug, I use the middle (of the 3) setting, "hot" and it is piping hot for me. The hottest, "piping" is too hot (I used the max number on the previous mug to get it to the heat level I wanted). I have also not had a circular path appear on the inside bottom of this mug. And, a year later, it is still going strong. CAVEAT: I do keep it on its coaster the whole time and sip as I work (it takes me hours to drink a mug of something)... when I happen to be up and take my mug, without the lid, the charge lasts on HOT for about an hour. Maybe 90 min with the lid on. I am still quite satisfied! The previous mug's charger was concave and this one is convex, so I just had to get the hang of placing it on the charger correctly without it toppling over, but that was an easy adjustment. Both mugs are heavier than a standard mug (obviously - there is a battery in the bottom!) but I got used to their weight. I am very happy with my Nextmug and would buy it again!!