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

After 15 month the mug would no longer keep heating and Nextmug offered to send replacement even outside warranty.

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.

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

I purchased a 14oz Nextmug as a gift for my nearly 100-year-old aunt, who absolutely loves very hot coffee. When we ran into some confusion and performance issues with the original mug, I reached out to Nextmug customer service—and I cannot say enough good things about the experience. From the very first response, their team (especially Corey) was kind, patient, knowledgeable, and incredibly thorough. They took the time to understand how the mug was being used, clearly explained how the temperature settings and battery work, and offered practical tips to improve performance. When it became clear that a replacement would be best, they immediately sent a brand-new Slate Blue Nextmug with a new slider lid, along with clear instructions and a prepaid return label for the old one. The replacement mug works beautifully. It keeps the coffee hot just the way my aunt likes it, and she was delighted with the new color. Most importantly, it brought back one of her simple daily pleasures—and at her age, that means everything. It’s rare these days to find a company that combines innovative products with such genuine care, warmth, and fast follow-through. Nextmug didn’t just fix a product issue; they treated us like family. I would absolutely recommend Nextmug, not only for the quality of their mugs, but for the outstanding people standing behind them. —A very grateful customer

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