Best gift! I brought this for my sons 4th birthday. He absolutely loved it and took to riding it instantly. He rides this while I push bike behide him with his little brother. I think depending on your child's confidence will depend how long yourl get out of the bike. I'd say we'd have to upgrade by Christmas 2025 to keep up with speed and height requirements (he will be 5) I do highly rate this bike. Its easy to charge the battery and so easy to put together, it took me 10 minutes. Buy the bike, you won't regret it :)