"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"<p> <b><b><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-17-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-18-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-19-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-20-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-21-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-22-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-23-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-24-large.jpg"><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-27-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-28-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-29-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-30-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-31-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/59f179aac064734116cf8843-32-large.jpg></b></b></p>