How to unlock the infrared camera hidden inside the Pixel 4

The Pixel 4 uses an infrared camera for face unlock. And you can use it as a regular camera to take IR pictures and videos! Camera apps to try: Some people are reporting better luck with HedgeCam 2: Tap the button that is normally for switching between front and back camera. Keep tapping until you...

9 min - How Things Work - Steve Mould

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