Apple Watch Series 12 alternatives Longest battery
The Amazfit Balance 3 Stainless Steel leads with 504 hr, against 24 hr on the Apple Watch Series 12. Only models whose makers list battery life (rated) are ranked here.
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Rated for up to 21 days and 100 m water resistance for about $80 less, but there is no ECG app, no cellular version, and the case weighs 62 g.
Rated for 12 days against 24 hours, with an ECG app and a slightly lighter case, but it costs about $100 more and there is no cellular version.
Up to 40 hours with always-on display against 24 and a lighter 36.7 g case, with ECG, GPS and an LTE version kept, but Google lists it for Android 12 or newer phones only.
Samsung quotes about 40 hours against 24 and it keeps ECG, GPS and an LTE version for $39 less, but several health features need a Samsung Galaxy phone and Samsung's US page does not list a case weight.
It costs $170 less and the case is 6.6 g lighter, but battery drops to 18 hours and there is no ECG app.
Rated battery life is the widest gap between smartwatches: makers quote anything from 18 hours to three weeks for their larger case sizes. After that, buyers compare case weight, water rating, and whether the watch has an ECG app, built-in GPS and a cellular version.
The overall ranking on the Apple Watch Series 12 alternatives page weighs every published spec. This page answers one question only, so a model can rank first here and lower overall. The DupeScore beside each model is the overall figure.
