Specification: Product model: C60 Protection level: 3ATM Color: black, grey, red, purple, pink (optional) BT version: 5.0 Screen resolution: 126*294 Battery: 90MAH Working temperature: -10 ° C-50 ° C Measuring temperature: contact wrist measurement Standby time: 10 days Normal use: 5 days Charging: USB direct charging Functions: Time mode, step mode, heart rate measurement, blood oxygen measurement, blood pressure measurement, sports mode (running / riding / jumping rope / badminton / table tennis), information interface, temperature, more (MIC address, search phone, brightness Adjustment, power off, reset, stopwatch, remote photography) Bracelet material: ABS ' PC Strap material: TPU Package Size: 10.2*8.8*2.3cm / 4.02*3.46*0.91in Package Weight: 68g / 2.40oz Package List: 1 * Bracelet 1 * USB Cable 1 * User Manual