And Freddie Cook celebrated the amazing news by eating a hamburger with two hands for the first time at his birthday party.
Young Freddie received the “hero arm” two days before turning eight, after years with a basic prosthetic hand.
The new limb is the first medically approved prosthesis of its kind in Britain.
Freddie, who was born with a stunted right hand and had started to become self-conscious, is happily using the arm to grip the handlebars of his scooter.
Cheeky Freddie even told his school friends that it had special lasers attached.
Mum Suzy said: “This will change his life. He really wanted to be able to eat a burger like his friends.”
Freddie, from Bracknell, Berks, was fitted with the £10,000 “multi-grip bionic arm”, paid for by his family, by tech firm Open Bionics of Bristol.