What camera resolutions does IUNI U3 feature?

Here are details about the IUNI U3's camera sensors:
Rear Camera : 13 megapixel
Front Camera : 4.1 megapixel
Flash : Yes
Camera Options :
+ Autofocus
+ Digital zoom
+ Exposure compensation
+ Face detection
+ Geotagging
+ ISO settings
+ Macro mode
+ Optical image stabilization
+ Scene mode
+ Self-timer
+ Touch focus
+ White balance settings
Slow Motion Video : No , 30.0 fps