COLMI - Your first Smartring. COLMI R10 Basic specifications ●CPU: RTL8762 ESF ●Bluetooth: 5.0 ●Ring Battery: 17mAh ●Capacity of Built-in Battery: 200mAh ●Waterproof level: 5ATM ●APP: "QRing" Suitable for mobile phones with Android 5.1 or higher, or iOS 8.0 or...