Here’s how to activate the siren on the Apple Watch Ultra

Here's how to use the new Siren feature on Apple Watch Ultra:

1. Press and hold the Action Button or Side Button until the option for the Siren slider shows up

2. Slide the Siren slider and a countdown will begin

3. The Siren will start after the countdown and will get louder as the countdown continues

4. The deactivate simply press the pause button on the Siren