Questions about TomTom Classic Carry Case 2016 for 4,3 and 5,0 devices

Hi, it fits perfectly to my TomTom Rider 410 WORLD (4.30") and since I still have reserves, probably to the 550 as well.

I can't say that. I have a TomTom 5200, which is just under 2 cm thick and fits perfectly. Much thicker will probably be difficult...