Question about Apple iPhone 13 Pro

I don't get it. The prices for the identical iPhone 13 Pro with 256 GB are currently offered here for the 4 available colours as follows: sierra blue 1217.- gold 1784.30 graphite 1784.30 silver 1242.- So considerably for just the design. If you compare the models here, however, you will see another difference, namely in the "Camera properties", "Max. Video resolution". The more expensive "models" here have 3840 x 2160 pixels, the cheaper ones 1080 x 720 pixels. I cannot believe that other colour models of the same type have different cameras. This is also not noted on the Appe page with the technical data. Is this a gross error on digitec's part, in the description and then also in the price, or do these differences _really_ exist???