What camera resolutions does Meizu MX4 feature?

Here are details about the Meizu MX4's camera sensors:
Rear Camera : 20.7 megapixel
Front Camera : 2 megapixel
Flash : Yes
Camera Options :
+ Autofocus
+ ISO settings
+ Manual focus
+ Panorama
+ Scene mode
+ White balance settings
Slow Motion Video : Yes , 120.0 fps