I did a small camera test the other day, Jolla vs Z10, filming a Full HD video with the same content. I did two tests, outside conditions and inside conditions.
Both these devices have about the same specs on the camera, 8 megabit Auto-Focus and none of the are marketed as any kind of super-über-DSLR-camera-phones so they should be on the same line in that sense.
Anyway, video below:
I must say, I'm a bit disappointed with the Jolla camera quality, hopefully it can be fixed with software updates. Jolla compresses also a bit more than the Z10.