Why? A new image sensor that allows multiple cells to be combined reducing the effective number of individual pictures

pixels

But increasing the light gathering capability of the reduced number of larger logical cells.

That means (in theory) higher ISO - up to 12800 and significantly better photos in low light without a flash.

There's also a enhanced 'dynamic range' mode that captures details in highlight and shadow areas better than a traditional image sensor

.

Again by combining the pixels.

In bright light the sensor treats each site separating giving it a high total pixel count (12MP).

I wonder if it will work as described.

Due out this month sometime.

Pretty nice looking small camera.