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One pop-up camera? Puh-lease! The Oppo Find X has three cameras mounted on one pop-up mechanism - dual cam on the back, single on the front. There's a 3D facial scanning system as well. The mechanism is motorized and can pop up in half a second. This leaves the front entirely to the 6.4" OLED panel (1080p+ resolution) with very narrow bezels, even the chin is barely there. The official screen to body ratio is 92.25%. The back is completely clean too when the cameras slide back in. There's no fingerprint reader on board, so the phone relies on its 3D facial scanning for secure...
Source: https://www.gsmarena.com/oppo_find_x_goes_official_with_a_popup_slider_with_three_cameras-news-31738.php