Gydom IDW13 - Clock Functions; Sleep Tracking and Analysis; Stopwatch and Timer Usage; Alarm Setting and Management

You can view the most recent sleep record and sleep status at each stage.
3.9 Clock
3.9.1 Stopwatch
Use the watch as a stopwatch. The stopwatch has a “Lap” function.
3.9.2 Alarm
1. You can add, delete an alarm, or turn the alarm on/off on the watch, and also set an alarm for the watch via the app.
2. You can set the alarm delay time and times in the APP to decide how long you want to delay and how many times to delay.
3.9.3 Time
You can set a timer with a preset duration on the watch, and the timer will remind you when the timer expires; you can customize the timer time.