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

This is a great cup for teas as it holds temperature very well. It has multiple heat settings so depending on if your just start your brew or trying to keep up on drinking it, the mug also has 14 oz for you to enjoy a drink ounces you can throughly enjoy you drink. I got this as a gift and my spouse hasn’t stopped using it. It made it first shower run while the shower was going the mug was keeping the drink warm so there was warm taste when your done. Great handle, easy to grip. It has like a stoneware finish so it plenty think enough thick

Wow this cup is AMAZING? I have been looking for a cup that can self heat for a long time. Sadly, I am in the hospital frequently because I have lupus. Last year I was in the hospital 95 days. 😭 I really enjoy having a cup of hot tea but when I am in the hospital, I can’t leave my room because I’m usually REALLY sick. After the cafeteria closes, I can’t get a cup of hot tea in the evening (when I want it the most). My only option has been for a nurse to microwave a styrofoam cup in a microwave which automatically makes me not even want the cup of hot water. I have been looking for a long time to find a travel mug that could be my “hospital mug”. I’ve tried several options all of which failed. I came across this cup and thought it looked interesting and the reviews were really good. My first thought was “a $100 coffe cup ??? What has this first world self indulgent country come to??? Holy fart blossom that’s alot of money!!” However, 95 days of my life in a hospital SUCKS! And during that time there is very little joy or peace. So I thought to myself “why are you spending all this time lonely and miserable and for $100 you could enjoy a cup of tea and it would bring you so much joy and comfort”. My favorite color is pink and I was so pleased that the cup came in a rose color, which is a lovely shade of rose/pink. The cup is amazing. It has a good grip. The round shape is comfortable to hold in your hands. The handle is the right grip and is comfortable to wrap your fingers around. The weight of the mug feels solid but not heavy. It has the right weight to feel like you are holding a comfort mug. It’s compact enough with the charging base to easily stick in a small hospital travel bag. The texture of the cup is calming and the cup is easy to wash well in a hotel or hospital sink. If I could change anything about the mug it would be that it was just a smidge talker so that the charging cord could travel inside the mug with the lid on it. It just almost will close but not completely. That’s the only rhino I wish was different just because when I travel around I don’t want to lose one of the parts and it would maximum travel efficiency. That’s a small thing in comparison to the quality of this mug.Also, I was curious if I started with cold water (like I will have to do in a hospital), could the cup do more than just keep tea warm but rather could I start with a cup of cold water and get the water hot enough to steep the tea. The answer is YES indeed you can. I did an experiment at home with a cup of refrigerated water and turned the mug setting onto “piping”. I put a kitchen thermometer in the water to measure the temperature of the water when it started and then to see how long it took and how warm the water would get without the help of starting with hot water. It worked! It was a little bit slow (maybe 30 mins or so). But it did the job which is really amazing for such a small “device” of this sort. The water started at 43 degrees and it heated up to 140 degrees in around 35ish minutes. It did steep the tea perfectly! Wahoo.I loved my cup so much that I gave my first mug to a very special friend who works outdoors a lot farming in the north east where it is often very cold. She enjoys a cup of hot coffee to warm her frozen body while she is working. She is young and would have never bought herself an expensive coffee cup. However, she absolute loves the cup. Which means this is a very nice special gift to give someone who really loves warm drinks.Today I am ordering my replacement mug for my hospital bag.This is a very cool cup that works and I think it is absolutely worth spending $100 for the comfort and luxury this mug brings to life enjoyment.My story of my struggle with lupus is on YouTube if you search “Ballerina With Lupus”. It can give you some idea of what my hospital life is like and also my determination to fight to stay alive.God bless you if you have read to the end of this crazy long review. LolMelly

This mug was a 2023 Christmas present to my wife as she loves her coffee to be hot and stay hot.At first this product was perfect. We even bought a second base so she could have hot coffee no matter where in the house she was. For the first year, all was good.Then, just after Christmas 2024, the mug failed, out of warranty by days. It would keep the coffee warm if on the base, but the moment it was removed, it would start cooling, as if the battery was kaput. Reading the reviews, it seems that this was not unusual-- the mug would fail in about a year. Similar problems are reported elsewhere as well. It seems pretty clear that there was some kind of defect in the 2023 version of the product.I contacted the company through their online form in early January 2025, but given that this product is made in China and that the company, Nextboom, is clearly a small outfit, I was not optimistic. And, I never received any response.But then, towards the end of January, we realized that the credit card with which we paid may have actually doubled the warranty. So we decided to pursue that. To submit the claim, we needed to document what a repair or replacement would cost so, I once again contacted the company.But this time, the response was totally different! Although the mug was slightly out of warranty, the representative, Kaitlyn, immediately responded and after clarifying the mode of failure, initiated a warranty replacement, which arrived within a few days. (It may have helped that we live less than 50 miles from where the company is located in Boulder, CO)The new mug works well and seems to have an even better battery life than the first one did. It's also a slightly different size and shape than the first one was.So, although I have no way to be sure, I suspect there was a product defect that has now been corrected. As a result, and because of the perfect response of Nextboom's customer service, I can offer a recommendation for this product without reservation. I guess time will tell if I'm correct, but for now, we could not be more satisfied.