GoKawiilEmber Mug 3 review: smart heating works, but battery life falls short
Ember's third-generation smart mug holds 14 ounces, keeps drinks at a set temperature via an app, and charges on an included coaster that doubles as a charging pad rather than a true coaster. In testing, the mug's battery drained within two hours at its highest 145-degree setting when left on the slow-charging coaster, though it performed better on a full charge. The optional lid, despite marketing claims of three extra hours of battery life, simply traps heat rather than adding power.