DxOMark is an industry standard for camera and lens image quality measurements and ratings. To calculate the score, ISO sensitivity, Noise, Color sensitivity, Sharpness, Distortion, Light transmission, Vignetting, and Lateral Chromatic Aberration are examined.
For the iPhone 6s, Apple equipped the rearward iSight camera with the same lens and field of view as the iPhone 6, but it features a new 12-Mpix, BSI 1/3”- type sensor and the ability to record 4K video.
● Pros: Very good exposure overall, Fast and generally accurate autofocus in all test conditions, Reliable and pleasant white balance in most conditions, Good detail preservation in bright light.
● Cons: Some luminance noise visible, especially in low light, Some color shading visible in indoor conditions, Slightly yellow cast visible in outdoor conditions, Occasional ghosting and other artifacts.
● Pros: Fast, accurate and smooth autofocus in all conditions, Good overall exposure and white balance, Effective stabilization in good lighting conditions
● Cons: Noise noticeable in low light conditions, especially in image corners, Slight color shading visible in low light conditions.
The iPhone 6s camera achieves a score of 82. The same given to the iPhone 6 and iPhone 6 Plus. It's outperformed by mobile device cameras from Sony, Samsung, LG, and Motorola.
Check out the charts below for more details...