Smartwatch Android iPhone Compatible ★ The following two types of bands are included: ・Metal band (black) ・Rubber band System Requirements: android5.0+/ios10.0+ Master Chip: jl7011 Bracelet Memory: 128M Bluetooth Call: Supported Bluetooth Version: 5.3 Screen Display: 1.32 inches Display Screen: 128*160 Battery Capacity: 280mAh Standby Time: Approximately 7 days Usage Time: Approximately 3-5 days Compatible Devices: Android 4.4, iOS 8.0 Bluetooth 4.0 ◎ Main Functions Call function, steps, sleep, exercise, heart rate, blood pressure, blood oxygen, weather, music, breathing exercises, messages, timer, etc. ◎ New Features Built-in speaker & high-performance microphone, allowing calls without taking out your phone. ◎ 100 Exercise Modes Equipped with 100 sports modes such as running, walking, and cycling. By connecting to the app, you can measure data such as exercise distance, time, and calorie consumption. ◎ Large Screen & Customizable Watch Faces 1.32-inch large screen. 17 built-in watch faces, and you can download over 270 types of watch faces through the dedicated app. ※ Contents Smartwatch 2 Bands Charging cable Instruction manual ※ Measurement data is for reference only.