Oppo demonstrated an intriguing concept phone a year ago, bringing a retractable rear camera that offered 2x tele zoom and a smaller camera bump. Now, Tecno has beaten Oppo to the punch by launching a commercial phone with this technology.
The Tecno Phantom X2 Pro indeed offers a 50MP retractable rear camera (f/1.49, 1.28-micron pixels) as part of a triple camera layout. This is a 65mm or 2.5x camera, with Tecno specifically calling it a portrait lens.