194
UK: Almost a quarter of kids aged 5-7 have smartphones
(www.bbc.com)
This is a most excellent place for technology news and articles.
Dumb phone exist. My children got their dumb phones when they started walking to school on their own (so they can call us in case of a problem).
No internet, only 4 harmless games and I can control which numbers are allowed to call them and which numbers they are allowed to call.