Google reveals how its hybrid Wear OS gets 'dramatically extended battery life' : r/WearOS
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Google reveals how its hybrid Wear OS gets 'dramatically extended battery life
Wear OS 4: The complete guide to the smartwatch OS
Wear OS “Hybrid” design has two OSes, two CPUs, “100 hour” battery life
Long-life smartwatches include Garmin, Fitbit and TicWatch - Gearbrain