Question about Honor 400

Why are there several standard honor 400 versions on digitec? I see different specifications in terms of screen resolution and battery capacity, so I do not understand. Is it a mistake on the digitec site or is it just like that? Thank you. Here are the different ones: 1. https://www.digitec.ch/fr/s1/product/honor-400-512-go-midnight-black-655-sim-esim-5g-telephone-portable-58331861 2. https://www.digitec.ch/fr/s1/product/honor-400-512-go-midnight-black-655-double-sim-5g-telephone-portable-61579762 3. https://www.digitec.ch/fr/s1/product/honor-400-5g-dual-sim-8gb-ram-512gb-meteor-silver-512-go-meteore-argent-655-double-sim-5g-telephone--63895196