Short Description: Screen :0.96 inch OLED Color Screen Fit for smartphone:bluetooth 4.0, android 4.4 Bluetooth Chip:nRF52832 Screen Type: TFT PPG Chip: HRS3300DS Acceleration :3 Axis Accelerometer Resolution :128 x 64 DPI Sensor:BST-BMA253 Battery Capacity:3.7V 110mAh Lion Battery Fit Wrist Perimeter: 15 cm -22cm Case material: Plastic Product Description: E28 smartband is a device that makes you live in healthier and more intelligent lifestyle. It helps to monitor basic physical indicators like sleep quality that you can know your body condition better. It tracks steps and shows you how you’re stacking up against your daily goals. Besides, you can share your data on you chat tool , which may encourage you and your friends to do exercise and raise interest in sports. Features: Specialize Function: Heart Rate and Blood Pressure Heart Rate: Continuous heart rate Monitor Run Run time , step and hear rate Care Function Your family can see your health data and sport data Sport Exercise: Step, Calories Burned, Step Distance Sleep Monitor: Sleep time and quality Reminder: Call/push message/etc Reminder Other Reminder: Take Medicine /Meeting /Sedentary/Drink Reminder Sport Activity Tracking: Yes Find Phone: Yes Shake Snapshot: Yes Time Format:12 hours 24 hours Other Functions: Off line measurement App: Wearhealth   What’s in the box: 1 x E28 Smart Bracelet, 1 x pair of wrist straps Weight: 0.2 SKU: 211029091437