2017 HOT D21 Smart Bracelet Wristband Bluetooth IP68 Waterproof Monitor Sport Wristlet Activity Tracker VS Fit Bit Fitbits

  • Sale
  • $51.00
  • Regular price $97.00


Function:
Time Display: Support
Date Display: Support
Steps Display: Support
Distance Display: Support
Calorie Consuming Display: Support
Calling Reminder: Support
Message Reminder: Support
Sitting Alert: Support
Photo-taking Control: Not Support
Music Control: Not Support
Sleeping Monitoring: Support
Bluetooth Connect: Support
Battery-charging Protection: Support
Keypad: Support
Anti-lost of Phone: Support
Heart Rate Monitoring: Support

Specifications:
Chipset: NRF51822
Sensor:Triaxial Gravity Sensor
Hardware Parameter: Single core
Software Parameter: OSAL
OS: Android4.4 or higher, iOS 7.0 or higher
LCD:0.66"OLED
LCD Pixels:0.66" 64*48
BT Version:4.0
BT Connection Distance:8-12m
Capacity: 80mAh
Standby Time: 7 days
Charging Electric Current: 200mA
Charging Type: Touching Point Charging(Clip Charger)
Average Working Current:6mAh
Average Standby Current: Less than 40uA
Working Voltage: 3.7V
Dimension: 23.7*12.2*164~232mm
Colors: Black, Pink, White, Purple
Material: Main Body(PC) watchband(silica gel)
Waterproof Grade: PX66

Package content:
1 x D21 Smart bracelet
1 x Charge Cable
1 x User Manual