Features: <br />Pedometer・ message reminder・ distance. <br />Calorie burned・ call reminder・ touch button. <br />Vibrate clock・ waterproof・ sleep monitor・ health statistic. <br />100 brand new and high quality. <br />Blood pressure・ heart rate monitor. <br /><br />Specification: <br />Chip: Nordic N51822 <br />Bluetooth Version: 4.0 <br />Sensor: 3D Acceleration Sensor <br />Photoelectric Sensor: Everlight <br />Display: 0.86 OLED <br />Battery Capacity: 90mah <br />Machine Material: PC <br />Belt Material: Silicone <br />Waterproof Level: IP67 <br />Normal Use: 3-5days <br />Stand By: 10days <br />Work Temperature:-10 -50  <br />System Requirement: Android 4.3 And Above・ IOS 8.0 And Above <br />Color: Blue・ Black・ Orange・ Gray・ Red・ Green <br />Product size: approx. 235*15*10mm/9.25*0.59*0.39'' <br />Net weight: approx. 25g