The C5 Max uses full HD 1080p display compared to HD 720p on the C5. The C5 Max is noticeably brighter, and in fact, is the brightest among the smartphones below.

The C5 Max has a 13MP rear camera while the C5 houses a 8MP, and there is marked difference in image quality upon close review. C5 Max is sharper and handles white balance better. Taken through a tinted window, here’s the C5 Max cropped at lower right, from 4160 x 3120 (13MP) to 1117 x 840.
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Read full post here:
https://musicphotolife.com/2016/07/neffos-c5-max-review-smartphone-tplink/