The actual number of bearing in a reel are pretty much meaningless.
There isn't a whole lot of performance increases as you go up the reel lineups. As long as the handle turns the spool, the line will be retrieved.
Durability, weight, finish, construction material, etc are other things that differentiate reels.
edited to add:
Extreme Citica
weight 8.6 oz 7.8
drag 10 lbs 11
line capacity 12/120 14/110
bearings 7 4
There are others, but these are just a few items that show other differences. I believe the Citica is a smaller profile too.