Bluetooth Calling Smart Watch Automatic Heart Rate Measurement

Product information:
Color: black, white, green, purple, pink, light purple, black Milan steel, gold Milan steel, silver Milan steel, black leather, Le Rouge Perfecto
Screen size: 1.32
Interface: USB 2.0
Color classification: Black
Battery capacity: 270 mA
Operation mode: touch button
Screen Type: TFT screen
Product size: 260*44.5 * 9.8mm