[nobody23]

http://thenewcamera.com/sony-rx100-m...specification/

New or improved stuff in the RX100 iv rr RX100 m4 is:
– 4k Video at 30 FPS (that one is an easy one)
– Improved Zoom to 24-100mm (just over 4x zoom range)
– Articulated Touch screen with touch screen focus – but still no touch menu
– restyled button layout – now with 2 dials on top (similar to the a6000)
– New and improved sensor with spherical shape and phase Autofocus points.
– New (tiny bit improved) image processor (needed for 4k Video)
– no EVF but expandable via hot shoe (urg. Why?)