Specification:
Model: SMA M4S
Screen size: 1.3 inches
Interface: USB 2.0
Body memory: 128MB+64MB
Screen material: IPS
Wearing style: Wrist strap
Menu language: Chinese, English, French, Spanish, Polish, Portuguese, Italian, Dutch, Turkish, Russian, German, etc.
Wireless distance: 5m (inclusive) -10m (inclusive)
Battery capacity: 360 mA
Operation mode: touch + button
Product size: 49mm*49mm*15mm
Screen resolution: 240*240dpi
Wristband material: Silicone
Product weight: 66 (g)
Strap style: Classic buckle
Strap size: M/L (suitable for 150-200 mm wrist circumference)
Function: Heart rate monitoring

Packing list:
Smart watch, charging cable, manual, tweezers, screwdriver