What camera resolutions does LeEco (LeTV) Le Max 2 X820 feature?

Here are details about the LeEco (LeTV) Le Max 2 X820's camera sensors:
Rear Camera : 21.5 megapixel
Front Camera : 8 megapixel
Flash : Dual LED - More smartphones with Dual LED
Camera Options :
+ Autofocus Continuous shooting Digital image stabilization Digital zoom Exposure compensation Face detection Geotagging HDR ISO settings Macro mode Manual focus Optical Stabilization (OIS) Panorama Scene mode Self-timer Touch focus White balance settings
Slow Motion Video : Yes , 120.0 fps