Best overall smart mug Ember ProsCons Has a reasonably good battery lifeDoesn’t always hit the exact temperature you set it at Lots of fine control and convenience from the appIs quite pricey Well built Related Walmart slashed the price of this cordless vacuum from $400 to $80 ...
these are “first-world” problems. But, they ARE problems. If you don’t mind the problems these cause or you don’t have these problems, go read something more fun/useful. Or, pass it on to those who might benefit from reading it!