This is how you can try Apple’s Double Tap Watch gesture right now

One of the new features of the Apple Watch Series 9 is the ability to interact with your watch without touching the screen. The new double tap gesture allows you to control your Apple Watch by tapping the thumb and index finger of your watch hand together twice. Apple says that the powerful neural engine inside the Apple Watch Series 9 make the gesture possible, by taking data from the accelerometer, gyroscope, and optical heart sensor to determine when you’ve performed the gesture. It therefore isn’t available on older models of Apple Watch, including the most recent iterations such as the Apple Watch 8 or Apple Watch Ultra.