Note
D21 Smart bracelet product details URL:
https://www.youtube.com/watch?v=uZtmCWlJZw0

Function:
Model: DFit D21
1.Model: D21 Smart Band
2.Memory size: 256k
3.Acceleration sensor: triaxial accelerometer
4.Strap: medical silicone
5.Display: 0.66OLED screen
6.Vibration motor: cylindrical vibration motor
7.Operation way: touch operation
8.Battery Capacity: 80mAh (Standby time will depend on the actual using situation.)
9.Waterproof : IP65
10.Bluetooth version: Bluetooth 4.0
11.Support System:Android phone(Android 4.3 or above and bluetooth 4.0), and iPhone (iOS 8.0 or above and bluetooth 4.0)
The main function:
Step count, distance, calorie consumption
Time display,
Smart alarm clock, smart unlock
Firmware Upgrade
Sedentary reminder
Motion Tracking

Precautions:
This product contains magnetic parts, has installed a pacemaker or implanted electronic devices or metal objects, please do not use this product.
When such wear, symptoms appear, please stop using the product immediately.
If you use sub-standard power charging will shorten battery life, and even damage the battery.
Our bracelet sealed process, anti-sweat, to meet the daily water, such as hand , etc., but does not support swimming, diving grade waterproof.

Package include:
1 * Bracelet
1 * Charging Cable
1 * User manual Note:English

Note:In order to be able to use, please recharge and then boot.thank you