Smart Watch NFC Access Control Bluetooth Calling

Product information:
Color: Black Watch black tape [NFC top version], Black Watch black belt [NFC top version], Black Watch black steel belt [NFC top version]], silver watch red tape [NFC top version], silver watch brown belt [NFC top version], silver watch silver steel belt [NFC top version]]
Screen size: 1.3 inches
Additional features: step counting, smart reminder, remote control selfie, health monitoring, information push, sleep analysis
Color classification: Black
Operation mode: touch button
Battery life: 7-14 days
Functions: Waterproof, photo taking, step counting, heart rate monitoring, Bluetooth calling, smart reminder, remote control selfie, information push
Wearing method: wrist strap