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We tested six smart rings, and there’s a clear winner
Only one ring can rule them all.
Conversely, smart rings are discreet and often have multiday battery life, and your finger can be a more accurate place to gather heart rate data. There are a bunch of “upgrade” widgets called Power Plugs that let you further customize your experience by focusing on other goals, like sun exposure for vitamin D, cycle tracking, Circadian alignment, etc. For example, I’m flattered this ring thinks my VO2 Max — a metric used to gauge your aerobic fitness — is 44 ml/kg/min (apparently, that’s superior) and that my resting heart rate is Elite.
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