Varni Sales M4 Smart Band Device - combo offer  (Black Strap, Size : FREE)

making you distinguished in the crowd. Download the APP “ Wearfit" to view your weekly health report with diagram and analysis of your walking distance, sleep quality, heart rate, blood pressure, blood oxygen and fatigue index. Fully compatible with various smartphones (Android and Apple's IOS system) Multi-functional Fitness Tracker: Accurately track your steps, distance, calories burnt, sleep quality and heart rate all day. With the green light detector and precision optical sensor, the heart rate monitor measures the heart rate Blood pressure at the top of the hour automatically. Fashionable Design and Adjustable Strap: 0.96 inches OLED HD Display screen with slim strap for people to wear in different situation. Record daily walking, distance and calories consumption. Sleep monitor & Alarm: Automatically track your sleep quality, and alarm silent vibration will wake you up. Support SMS, WhatsApp, Facebook, Twitter, and other social network site alert. Note: You should allow the notification of the apps in the phone and app. Bluetooth: Bluetooth v4.0 Touch Screen: Battery: 90mAh Li-on Battery Standby Time: 160 hours Charging duration: 1-2h Sensor Specifications