The UK boss of Samsung Mobile has said he did not give his daughter a smartphone until she was 11.
"I personally wouldn't have given her one early, but it is a parental decision as to when you should get your child a phone," said James Kitto.
He said whatever age people get phones, it was important to make sure they were safe online.
It comes after Ofsted's chief inspector said she was "surprised" when primary school children have smartphones.
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