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Samsung has made no secret that outside of its slightly larger 5in display, visually the Galaxy S4 is meant to look a lot like its predecessor the Galaxy S3.
However, under the hood the device boasts a host of custom software and hardware features.
Two of the most interesting of these are the Galaxy S4's Eye Scroll and Air Gesture features.
Eye Scroll is an interesting bit of software designed to detect when a user has read to the bottom of the screen, then automatically scroll down.
Air Gesture is designed to add Minority Report-style gesture controls to the S4, letting users navigate the device's menus without actually touching the phone's screen.
Both features have an air of magic and mystery about them, but do they really work? We set about finding out.
Check back with V3 later this month for a full, in-depth review of the Samsung Galaxy S4.