Xzenza Sports Bracelet Bluetooth Fitness Tracker Health Bracelet Sports Wristband Gear Fit For Android IOS With USB plug: Xzenza Sports Bracelet integrated with USB plug, connect computer and power bank directly, plug and play. (USB plug just for charging) • Call / SMS reminder: It will avoid missing any important calls and messages. • Anti-lost function: When the smart wristband and mobile phone are separated for a certain distance,will vibrate to remind. • Sedentary reminder: will vibrate to remind you to get a stretch after you sitting for a long time. • Sport tracking: Be able to track the steps, the movement distance and calories consumption. And check the completed situation of your target on the smart phone. • Sleep monitor: Monitor your sleep quality, help you develop good sleeping habits. • IP57 waterproof: You can wear it to wash hands and face. Android users (Google play) - Fundo Companion iOS users - Body Sensor - By Maxwell Note: 1. iOS phones do not support Message function. 2. The function of Call Reminder, for Android phones, will display the call numbers; For iOS phones, will display "INCOMING CALL".