LG placed these buttons on the back - center of the phone instead of the sides. (digitaltrends.com)
Other rear - mounted fingerprint sensors, such as the LG G6 and Google Pixel, are closer to the middle center of the phone's body, well clear of the camera and flash. (cnet.com)
On the back of the phone is a fingerprint sensor, which is sensibly placed in the top center of the phone, away from the camera lens. (digitaltrends.com)