Just like the OPPO R5, the primary camera on the Desire 820 is a 13MP unit. It takes images at a native resolution of 4224*3136. The front camera is an impressive 8MP.
As is usual, HTC include their own camera app – which is actually very limited. It only allows users to take a standard photo – no other modes are included, meaning there is no HDR setting or low-light mode, which many users find useful. We would certainly recommend using Google's own camera app instead, as the HTC offering is rather disappointing.
The photos themselves are mostly satisfactory. There is a good level of natural contrast in the images, but often the photos can not accurately reproduce the sky. The camera also does not deal well when shooting into sunlight, but exposure levels are mostly accurate.
Though it is 13MP, the level of image quality does not seem to be at the same level as the OPPO R5, which shoots crisper images. As it is, it is hard to praise the camera when the OPPO's seems a better all-rounder for a similar price.