There is probability of introduction of ''floating touch"display in Galaxy S4 which would allow people to control the phone without touching the screen. Hovering a finger over a photo album might bring up a preview of the pictures inside.

This follows reports last week that the new smartphone would scroll the screen by monitoring the movement of the user's eyes.

It will also feature a PHOLED screen, which is more energy efficient than a standard OLED screen, a 13-megapixel camera and a new photography mode called Samsung Orb that will capture 360-degree images & wireless charging using the Qi standard supported by Google and Nokia, rather than the A4WP standard which Samsung has backed until now.