This watch has USB Port you need to attach the USB port with your normal mobile charger or laptop to charge the watchAll-day activity tracking: Track steps, distance, calories burned, active minutes, you can check daily activity and time on an LED display or APP.You will receive only notification to See Calls & Messages on Your Wrist: Receive/Rejection call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display, fitness tracker band let you never miss the messages that matter.NOTE-This fitness band will only work after installing the fitness band application from the play store. TO set the time of the watch, install a fitness band application. YOU will receive a bar code plus scan it to download the application. Switch ON BlueTooth and location while connecting fitness band from the app. Do not connect band directly with Bluetooth u need to connect it from APP.