12 Year Old Money Disagreements

Hi.
My son has enough money of his won saved up in his bank account, and he
would like to purchase himself a laptop computer. He is great with
computers, and would like to get a laptop. I would like some advice on
this topic, because I am not sure if I should let him do this. (He
earned the money by putting in his allowance when he was younger, and I
had him do little chores at my office when he was little, and gave him
money for helping.)