Trying to set a timer on cameras, both on smartphones and dedicated units, can be a pain. Google Camera 4.2, which currently can only be installed on Android 7.1 or higher, allows you to take photos with the “OK google, take a picture” voice command.
Once you say the magic words, the Camera app will open (if it isn’t already) and start a 3-second timer. After the time is up, the photo will be taken.
Android 7.1 feature spotlight: Google Camera actually takes a photo on voice command was written by the awesome team at Android Police.