Applicable platform: fully compatibleScreen size: 1.54 inches Interface: USB 2.0Camera: none Body memory: 32+32m Screen material: LCDWearing method: wrist strap Compatible system: fully compatibleCommunication function: support Menu language: Chinese Multi-countryWireless distance: 5m (inclusive) -10m (inclusive) Battery capacity: 360mahMode of operation: touch + button Product size: 48*39*12.5mmScreen resolution: 240*240 Wristband material: tpuStrap size: M / L (suitable for 150-200 mm wrist circumference)Function: Smart reminder