POENVFPO Smart Ring - ID 20.7mm / 0.81in

Specification: Item Type: Smart Ring​​​ Material: Stainless Steel, Resin Battery Type: Lithium Cell (Built in) Battery Capacity: 20mAh Water Proof Level: IP68 Support Systems: Support for Android 9.0 and above, Support for iOS 10.0 and above Bluetooth​​​ Version: 5.3 Bluetooth​​​ Distance: 3-5 Meters Color: Gold How to Use: Download the APP, connect to use, the ring​​​ will automatically turn on when fully charged. Packing List: 1 x Smart Ring​​​ 1 x Data Cable 1 x User Manual