The main function:
<br />Heart rate monitor, caller ID, text messaging, micro-channel, vibration
<br />Step count, distance, calorie consumption
<br />Time display, sleep monitoring, camera, anti-lost reminder
<br />Smart alarm clock, smart unlock
<br />Sports information sharing
<br />Firmware Upgrade
<br />Sedentary reminder
<br />Motion Tracking
<br />
<br />Description:
<br />1.Model: D21 Smart Band
<br />2.Memory size: 256k
<br />3.Acceleration sensor: triaxial accelerometer
<br />4.Strap: medical silicone
<br />5.Display: 0.66OLED screen
<br />6.Vibration motor: cylindrical vibration motor
<br />7.Operation way: touch operation
<br />8.Battery Capacity: 80mAh (Standby time will depend on the actual using situation.)
<br />9.Waterproof : IP65
<br />10.Bluetooth version: Bluetooth 4.0
<br />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)
<br />
<br />Specifications:
<br />Chipset: NRF51822
<br />Sensor:Triaxial Gravity Sensor
<br />Hardware Parameter: Single core
<br />Software Parameter: OSAL
<br />OS: Android4.4 or higher, iOS 7.0 or higher
<br />LCD:0.66&amp;quot;OLED
<br />LCD Pixels:0.66&amp;quot; 64*48
<br />BT Version:4.0
<br />BT Connection Distance:8-12m
<br />Capacity: 80mAh
<br />Standby Time: 7 days
<br />Charging Electric Current: 200mA
<br />Charging Type: Touching Point Charging(Clip Charger)
<br />Average Working Current:6mAh
<br />Average Standby Current: Less than 40uA
<br />Working Voltage: 3.7V
<br />Dimension: 23.7*12.2*164~232mm
<br />Colors: Black, Pink, White, Purple
<br />Material: Main Body(PC) watchband(silica gel)
<br />Waterproof Grade: PX66
<br />
<br />Package content:
<br />1 x D21 Smart bracelet
<br />1 x Charge Cable
<br />1 x User Manual<p> <b><b><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-1-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-2-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-3-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-4-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-5-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-6-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-10-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-13-large.jpg"><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-26-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-31-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-39-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-40-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-41-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-42-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-46-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-48-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-49-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5847df9e45f8544f22dfe110-50-large.jpg></b></b></p>