Can anybody tell me what companion item levels mean. I have some item level 1 companion pets (Brilliant Kaliri, for example) and some item level 70 companion pets (Nether Ray Fry, for example).

Are the item level 70 pets stronger than the item lvl 1 pets? This would seem to make sense if it follows the same rules as player gear item levels, but I notice their statistics aren't drastically different, at least at level 1.

Plz respond! I am hoping to become a pokemon gym leader