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The Ember Smart Mug 2 is a 10 oz stainless-steel mug with a built-in battery that holds a drink at a set temperature, controlled from a phone app. It keeps coffee or tea warm for roughly 80 minutes on battery, or all day on its charging coaster. It suits desk workers and slow sippers who hate reheating cups. Against a thermos or a heated coaster, it trades capacity and simplicity for precise, portable temperature control, and owners say the app and battery are the weak points.
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Lowest price we've seen: $79.51 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.
Owners like the steady, exact temperature and the coaster for desk use. Many complain about app pairing, short battery life and units that stop heating after a year or two.
The Ember self-heating smart mug is a 10 oz stainless steel mug from the Ember Temperature Control Smart Mug 2 line. It comes as a set of 2.
