Bottom Line: The Ember Mug 2 helped define what to expect from a smart heated mug and offers unmatched control and customizability. Pros: Second generation of original rechargeable heated coffee mug.

There's nothing worse than forgetting about your cup of coffee, then coming back an hour later to a lukewarm drink. Sure, you could nuke it in the microwave, but it just doesn't taste the same after.

Whether you take your time drinking your morning coffee or get pulled in a million directions before you can even take your first sip, one thing is true: Hot coffee has a very short lifespan. For ...