The Apple Watch SE 3 introduces new gesture controls mainly through its "double tap" and "wrist flick" gestures, enabled by the powerful S10 chip.

• The double tap gesture involves tapping the thumb and index finger together twice, which can be used to select primary actions in apps and notifications like answering or ending calls, viewing and sending messages, pausing/ending timers, snoozing alarms, opening the Smart Stack, and more.
• The wrist flick gesture allows users to dismiss notifications quickly by turning their wrist over and back without needing to touch the screen.
• Additionally, the watch supports Assistive Touch, an accessibility feature that lets users control the watch using hand gestures like pinching (touching thumb and index finger) and clenching (making a fist) to navigate, select items, open action menus, and perform customized actions such as answering calls, scrolling, or launching Apple Pay.
• These gestures enhance one-handed operation and hands-free usability when the other hand is occupied.

Users can enable and customize these gestures in the Accessibility settings under Assistive Touch. Visual feedback appears on screen to indicate gesture recognition. These gesture controls make the Apple Watch SE 3 more accessible and convenient, allowing efficient interaction without direct screen touch.