For further assistance and support, you can:

You can set up to 5 alarms directly on the watch or via the app. Alarms will vibrate (no sound on most Yayusi S2 models).

The Yayusi S2 typically features a touchscreen with a single physical button.

Touch and hold the main clock screen to cycle through 3–5 preloaded watch faces. Some models allow custom photo faces via the companion app.

: Holding the power button displays "OFF" on the LED screen, which saves power while keeping the internal clock active.

A: Acceptable for wellness tracking (±2-3% variance). Do not use for medical oxygen monitoring.

A: Sync with the app. Time is pulled from your phone’s timezone. If still wrong, manually adjust timezone in app settings.