Key facts
- Mug 3 allows on-mug temperature control via a button.
- Temperature can be set between 125-145 degrees Fahrenheit.
- Mug 3 is top-rack dishwasher safe.
- Battery life lasts up to three hours.
- 10-ounce model costs $129, 14-ounce model costs $149.
Ember has launched its latest temperature-controlled smart mug, the Mug 3, which introduces on-mug controls for adjusting drink temperature. This feature allows users to cycle through five preset temperatures, from 125 to 145 degrees Fahrenheit, without needing to use the companion app. The mug also includes a sliding lid for spill prevention and is top-rack dishwasher safe. The Mug 3 offers up to three hours of temperature maintenance on a single charge. It is available in a 10-ounce size for $129 and a 14-ounce size for $149. Ember also released the 16-ounce Tumbler 2 for $179.