What camera resolutions does HTC One M8 Dual Sim feature?

Here are details about the HTC One M8 Dual Sim's camera sensors:
Rear Camera : 4 megapixel
Front Camera : 5 megapixel
Flash : Dual-color LED
Camera Options :
+ Back-illuminated sensor (BSI)
+ Face detection
+ Geo tagging
+ High Dynamic Range mode (HDR)
+ Simultaneous HD video and image recording
+ Smile detection
+ UltraPixel BSI image sensor