Step Counter: Record the number of daily movement steps to view the current real time steps. The distance of motion is estimated based on the number of walking steps. Estimate the calories burned based on the number of walking steps. Multi-sport mode: Under this interface, you can record the calories and duration of running. Skipping rope mode, sit-up mode, Sleep mode, Information mode etc. Connect via App-This fitness band will only work after installing fitness band application from play store. TO set time, call, message notifidation etc you have to install fitness band application from Play Store. Please refer to user manual comes in the box for which application to download. NO CALLING FEATURE-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. Waterproof: Not for swimming or diving, Standby time: 3 days & above, this product uses professional Bluetooth RF signal and custom algorithm.