Coffee at the wrong temperature is just brown liquid, and long transits produce a lot of it. This mug holds the drink exactly where the maker sets it, for hours. A small thermal ritual between terminals.

Specifications

  • Keeps the drink at the selected temperature up to 3 hours on the go, all day on the included charging coaster, per Ember
  • Capacity: 12 oz / 355 ml
  • Temperature range of 120F to 145F, set via touch display or the Ember app
  • Spill-proof push-to-open 360 lid; fits car cup holders
  • Apple Find My built in
  • IPX7 water resistance; lid is dishwasher safe, mug is hand wash
  • App control: set temperature, presets, notifications, and personalization
  • In the box: Travel Mug 2+, 360 Lid, Charging Coaster 2, Charging Cable
  • Price verified 23 Sep 2026; Ember discounts periodically (seen at $139.99 in past promotions)

$199.95 · Price via Travel Mug 2+, ember.com

Method. Compiled from published specifications and maker materials. This is not a hands-on test.