Photo 1 of AMOVAN Smart Ring for Women Men, Fitness Tracker Ring with Body Temperature, Heart Rate, Blood Oxygen, Sleep Monitor, Calories, No Subscription Fee, IP68 Waterproof for iPhone & Android (Black, #10)

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Photo 1 of AMOVAN Smart Ring for Women Men, Fitness Tracker Ring with Body Temperature, Heart Rate, Blood Oxygen, Sleep Monitor, Calories, No Subscription Fee, IP68 Waterproof for iPhone & Android (Black, #10)Photo 2 of AMOVAN Smart Ring for Women Men, Fitness Tracker Ring with Body Temperature, Heart Rate, Blood Oxygen, Sleep Monitor, Calories, No Subscription Fee, IP68 Waterproof for iPhone & Android (Black, #10)