Smart bracelet QW16

Fully compatible with various smartphones (Android and Apple iOS system). Keep an eye on your steps, distance, calories burned, sleep quality and heart rate throughout the day. The smart bar will vibrate at certain times to keep you from sitting down too long and tells you to exercising a little bit. When you receive a call or a text message, the smartwatch vibrates. Including messages from Facebook, Twitter, WhatsApp, Linkedin, Messenger, etc. Never miss important messages. Using a green light detector and a precision optical sensor, the heart rate monitor automatically measures your heart rate. With the app, you can view your weekly health report with a chart, distance traveled, sleep quality, heart rate, blood pressure, oxygen and fatigue index analysis. Trendy design and adjustable strap: 0.96-inch OLED HD display with a thin strap for people to wear in different situations. Automatically monitor sleep quality and the silent vibration of the alarm will wake you up.   Technical data: Bluetooth 4.0 Touch screen Strap length: 16-21.4 cm Battery: 90mAh Li Standby time: 10-15 days Charging time: 1-2 hours Sensor: three-axis acceleration sensor