Description Product Summary & Specification Specification:   Title: T97 Bluetooth Calling Smartwatch – Black Color Brand: Non-Brand Warranty Period 7 Years Waterproof IP67 Dimensions 46.5*38.2*10.5mm Model T97 Sensor JL7012 Operating System :iOS10.0 and above Android5.0 and above Battery Capacity 250mAh/ 20-day battery life/Low power mode Bluetooth BT3.0 BT5.1 Display Size 1.91 inch Case Material Aluminum alloy frame gum silicone Charging Method USB cable charging Memory Capacity 128Mb(system) Warranty Type If there are any Manufacturing Defects