Description: Designed with a 1.4inch bright color touch screen that provides incredible color depth and exceptional clarity. Built-in 170mAh battery, Long standby time and working time. Heart rate change, real-time grasp; Optical heart rate sensor, real-time of heart rate during exercise, Protect your heart health. Main Function: Steps, heart rate, blood pressure, blood oxygen saturation, exercise data recording, dial selection, message push, daily alarm clock, photo control, weather information, etc. Lightweight and Comfortable Only about 46g in weight. Specification: Screen: 1.4" Color touch display Pane: 2.5D Super strength tempered glass Waterproof Level: IPX7 Chip: NRF52832(NORDIC) Sensor: Bosch BMA421 Sensor; HRS3300 Heart Rate Sensor : BT4.0 Battery: 170mAh polymer lithium battery Charging Method；Charging clip Color: Black, Gray, Gold, Blue, Pink APP: Da Fit Support System: Android 4.4 or above / I0S9.0 or above Waterproof Level: IP67 Charging time: about 2.5 hours Life time: 5-7 days of use, 25 days of standby Package Includes: 1 Piece Smart Watch 1 Piece Charging Clip 1 Piece User Manual Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.