Originally Posted by Zenithale

Indeed, I have a Warrior Ring +10 (Level 14) = Atk +1169!

Which is as almost much attack stats as you'd get from leveling most girls from 1 to 50. And a level 30 (max) Defense Bracelet +10 gives 619 defense, which is about how much you get from leveling most girls from 1 to 50 (or even 1 to 60) and is nearly half the total defense of some level 60 evo'd 3-star girls.