Specifications:

Chip Model: NRF51822 ( Cortex M0 16MHz)

memorry : 256K

Acceleration Senor: Three-Axis Acceleration Senor

Display OLED 0.66' 64*48 Dots Touch Screen

Motor Cylindrical Vibration Motor

Key Type Touch Key

Battery 80mAh( charge time 30 minutes stand by 120 hours)

Packing size:3.94'*3.94*3.94'/10cm*10cm*10cm

Package weight:130G

Features:

Support Green Light Static Heart Rate Monitor; Pedometer ; Distance Interface: Colories Display; Palming Bright Screen; Incoming Call Vibration Reminder; Alarm ; Sdentary ; Built in NFC Chip; SMS Reminder (For Android )

Green Light Static Heart Rete Senor, Display the Exact Heart Rate at Any Time you want.

4 Colors with Changeable Strap Availabe

Touch Key Design Instead of the Button Design, A Real IP66 Waterproof item, You Can Wear It When you Swimming

Package:

1* D21 Wristband