What camera resolutions does Lenovo Vibe Shot Z90 feature?

Here are details about the Lenovo Vibe Shot Z90's camera sensors:
Rear Camera : 15.9 megapixel
Front Camera : 8 megapixel
Flash : Yes
Camera Options :
+ Autofocus
+ Continuous shooting
+ Digital zoom
+ Exposure compensation
+ Face detection
+ Geotagging
+ HDR
+ ISO settings
+ Optical image stabilization
+ Panorama
+ Scene mode
+ Self-timer
+ Touch focus
+ White balance settings
Slow Motion Video : No , 30.0 fps