The double tap to zoom features is coming to the Google Camera via a new update which should already be rolling out to users of the app.
The new feature produces extra light for better pictures in low-light condition.
The previous version introduced front-facing selfie flash (thanks to a full white display that flashes right before taking the shot), and this one comes with a few new features and changes, majority quite hard to notice. Contrary to the previous setup, users will now be able to clearly see whether they have their camera setup to take photos or videos and will be able to switch between the two by selecting the large icons that now flank the shutter button. After you snap a photo, the entire screen is enveloped in the beige lighting. The latest version carries with it some lightweight, but somewhat useful, new additions, including the ability to double tap the display to zoom in, and a new toggle for switching between camera functions.
As noted by Google, the latest version is created to work on recent Nexus and Pixel devices running Android 7.1.1 and above, The Verge reported.