Band
Colour: Blue, violet, Black Brand Model: R1S Main Size 47 x 23.5 x 12.5mm Main
Material: PC+acrylic Wristband Size 225 mm Wristband Material Silicone Bracelet Buckle 304 stainless steel Weight 33g Waterproof level: IP67 MCU ARM-Cortex M4 Bluetooth BLE4.0 Screen 0LED 0.96 inch Battery 120 m Ah Standby duration up to 25 days Functions: Weather Forecast, Heart Rate, Sleep Monitor, Smart Alarm, Call Reminder, Pedometer,