Product · Jun 12, 2026 · 6 min read
How we got to eight days of battery in 2.6 millimetres
Adaptive sampling, a custom power path, and the trade-offs we refused to make.
The easiest way to add battery life is to measure less. We didn't want to do that. Instead we built a sampling scheduler that spends power where the signal is — high during workouts and sleep transitions, low when you are sitting still.
The second half of the story is the charger: a sixty-minute full charge means the earring spends less time on the dock and more time on you.
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