Feature: 1.Full-day activity tracking: steps, calories burned, mileage and heart rate. 3. Sleep Monitor: Track and analyze your sleep quality from the moment you fall asleep, to the length of deep sleep you experience. 4. Remote Camera: Remotely control your phone camera and extend your selfie distance within 10meters 5. Blood Pressure and Blood Oxygen monitoring 6. Time & Alarm clock 7. Sedentary alert Specifications: Type: M5 Smart Watch Material: TPU, ABS, PC RAM : <128MB Style : SPORT Multiple Dials : Yes Waterproof Grade : Life Waterproof Battery Capacity : 50mAh Network Mode : None Movement Type : Electronic Screen Shape : Round APP Download Available : Yes Case Material : ABS Display Size : 0.96 inch Band Material : Silica gel Application Age Group : Adult Battery Detachable : No Band Detachable : Yes color : Black/Blue/Red/Pink/yellow Function : Passometer Function : Fitness Tracker Function : Sleep Tracker Function : Power Reserve Function : Heart Rate Tracker Function : Noctilucent Bluetooth: Bluetooth 4.0 Charging method: USB Waterproof rating: IP67 Charging time: about 2H Compatible systems: Android 5.0 (above), IOS8.0 (inclusive) and above Life time: Use 2-3 days, standby 5 days Wristband size: total length 250MM, adjustable length 120-200MM Appearance Material: Body: TPU Wristband: Thermoplastic Elastomer + Stainless Steel Compatible systems: Android 5.0 (above), IOS8.0 (inclusive) and above Large battery built in, super-long standby up to about 7 days, work for 3-5 days, quick to charge for 2 hours (USB charging, USB cable included). Bracelet band is replaceable. Life waterproof: IP65, can wash hands, wear in the rain, but can not wear it when swim or bath. Package Included: 1 x Smart Watch 1 x USB Charger Cable 1 x User Manual Notes: 1. After receive the watch ,please charging first. Because after a long period of logistics, the watch is out of battery. 2. Do not use the smart bracelet in sea water, hot water or warm water! 3.Wearable devices monitors human activities through electronic sensors, and they are at the consumer electronics level. It's normal for certain deviation. The user should treat data objectively. 4.Please do not compared to hospital equipment about reading, it is NOT a medical device !please don't buy for check the health(heart problem, blood pressure problem) it's not for professional use. Just can be a reference.