Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
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Smart ring with sensors for blood oxygen, heart rate, heart rate variability, breathing rate, temperature trends, movement, and activity. Compatible with iOS and Android and integrates with more than 100 apps.
Battery runtime is up to 6–9 days per charge depending on ring size and usage intensity. The ring takes about 80 minutes to charge, depending on battery charge level. Charging case sold separately; the listing states it provides all-day device operation with 10 minutes of charging.
Waterproof up to 100 m/328 ft and IP68-rated for water and dust protection. Supports Bluetooth Low Energy and airplane mode.
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