Product Features: Positioning: Beidou GPS dual-core positioning/satellite navigation/latitude and longitude positioning, can track 50 target points at the same time, and track the movement track Monitor real-time dynamic heart rate graphs and heart rate warnings, including high, low, average and current heart rate valuesSports data analysis: swimming/running/cycling/walking/step counting Altitude: Mountaineering altitude: 24-hour altitude curve data analysis, mountaineering height, mountaineering rate, mountaineering track record, real-time heart rate monitoring Air pressure, sea level air pressure, current air pressure, 24 hour barometric pressure graph Swimming: Real-time monitoring of time/laps/distance/speed/calories/average pace/heart rate/training plan, etc. Cycling: real-time monitoring of riding time/laps/distance/speed/calorie/average pace/heart rate/average heartbeat, etc. Running: Real-time monitoring of running time/laps/distance/speed/calorie/average pace/heart rate/average heartbeat, etc. Race walking: real-time monitoring of 3D sensors/calories/time/distance/pace/step frequency/heartbeat/movement track/history records Training Ground: Smart Accompanying Runners/Smart Assisted Training Program 16 azimuth digital compass/level/geolocation Mobile APP software (sync, save, share tracks, etc.), support Android and Apple systems Language: Supports multiple language switching (Simplified Chinese/Traditional/English/Japanese/German/Italian/Spanish/French) Low battery and charging indication Backlit Display/Water Resistant 5ATM Alarm reminder function (2 groups of alarm reminders, hourly reminder function) USB magnetic charging, long standby Exquisite design, 304 stainless steel bezel, buttons and buckle