The Xperia PRO-I redefines the camera as the world's first smartphone with 1-inch Exmor RS® image sensor and phase-detection AF[i], 4K video recording at 120fps high frame rate (a world's first[ii]), and unique modular vlogging capabilities all packed into a smartphone. So you can be creative, wherever, whenever. It's THE Camera. [i] Xperia PRO-I features a 1.0-type Sony image sensor with phase detection auto focus. Verified by Strategy Analytics' SpecTRAX Service against the published camera specifications for over 19,600 smartphones. Correct as of the 26th October 2021. [ii] The Xperia PRO-I supports high frame-rate internal 4K movie recording at up to 120fps, for smooth, expressive slow-motion playback at up to 5x. Verified by Strategy Analytics' SpecTRAX Service against the published video specifications for over 19,600 smartphones. Correct as of the 26th October 2021 [iii] This feature is only available for the 24mm lens.