Watching YouTube videos on a phone locked in portrait mode can be frustrating, especially when fumbling for that tiny fullscreen button. As a longtime mobile tech enthusiast who's tested this across devices, I've got a game-changer: just swipe up on the video to expand it to full screen, and swipe down to return to portrait. This built-in gesture works seamlessly without unlocking rotation.
I've covered this handy feature before, but it's surprisingly overlooked—even among tech-savvy friends I demoed it to, most had no clue it existed.
It shines on both iOS and Android devices. Personally, I prefer it over the OS auto-rotate toggle for its speed and simplicity.
One caveat: it rotates only one way. For landscape with the left side up, you'll need to disable portrait lock. Still, it's far superior to tapping for controls and aiming at that minuscule button.
Imagine this gesture in every video app—or phones smart enough to detect video playback and auto-fullscreen despite locks. Until then, this YouTube trick will transform your experience.
