The world's first device for monitoring sleep apnea RingConn Smart Ring Gen 2 The RingConn Smart Ring fits all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing it on your index finger. Battery life Up to 12 days Download the RingConn app and enjoy a healthy journey without a subscription RingConn Gen 2 differs from standard rings, Use the sizing kit to determine your size. .Withstands pressure equivalent to a static depth of 100 meters under normal temperature conditions. Swim, wash your hands, cook, or brave the rain - all without worry .Bluetooth RingConn Matte Black | Size 10