Obviously not giving her a phone would be the best way...
She's super into phones and loves talking to her grandparents. Under 10 but only watches YouTube toy review type videos so we figured it would be a good birthday present. Just looking for something that can control numbers that can be called so she can only call me, my wife, grandparents, etc.. App access so I can just turn off chrome and whatnot, and GPS if anything were to happen.