Invella M2S Smart band / Fitness band / smart bracelet Specifications: Appearance material: Fiber shell, soft rubber strap Screen: OLED 128*32 Memory: 64KB RAM + 64KB ROM Water Resistance Level: IP67 Sensor: 3 axis acceleration sensor, photoelectric sensor Main function: Activity Tracker, Heart rate Monitor, blood pressure monitor, Caller id, App Notification, Pedometer, Distance, Calorie, […]