What camera resolutions does Lenovo S850 feature?

Here are details about the Lenovo S850's camera sensors:
Rear Camera : 12.8 megapixel
Front Camera : 5 megapixel
Flash : Yes
Camera Options :
+ Autofocus
+ Face detection
+ Geotagging
+ HDR
+ Touch focus
Slow Motion Video : No , 0.0 fps