Photo 1 of Twievo Smart Ring, Fitness Tracker Ring with Charging Case, IP68 Waterproof, Heart Rate, Blood Oxygen, Sleep Tracker, No App Subscription-Compatible with Charging Case (Silver, #9)

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Photo 1 of Twievo Smart Ring, Fitness Tracker Ring with Charging Case, IP68 Waterproof, Heart Rate, Blood Oxygen, Sleep Tracker, No App Subscription-Compatible with Charging Case (Silver, #9)Photo 2 of Twievo Smart Ring, Fitness Tracker Ring with Charging Case, IP68 Waterproof, Heart Rate, Blood Oxygen, Sleep Tracker, No App Subscription-Compatible with Charging Case (Silver, #9)