0, Dive Mode (Dive depth, Max dive depth 50m, water temperature)
1, Waterproof 200m
2, Altimeter
3, Barometer (48 hours air pressure trend chart)
4, Compass
5, Thermometer (Temperature)
6, Pedometer, step counter, calorie, distance record
7, Time functions: hour, minute, second, year(2000-2099), month, date, weekday, 12H/24H format
8, Countdown timer (99:59:59~0)
9, Stopwatch (0~99:59:59), 50 sets of data
10, Worldtime functions (daylight saving time switch automatically)
11, Digital compass
12, Battery life remind
13, EL Backlight
https://www.youtube.com/watch?v=qBAPAnbfrRs