Bought this for my son when he turned 5. He is a small 5 with small arms and wrists so I was unsure if this would be ok for him. We actually let him pick it out online and place the order. He was excited and with prime he only had to wait 2 days. When it arrived, he was still excited and couldn't wait to open it. He first opened another product we ordered from Amazon, which we thought was funny when he got angry. Anywho, he opened excitedly and gave it to me to set it up for him. Set the time easily without directions and adjusted the elastic band. It fit him great and had room to tighten and plenty more to loosen for when he keeps growing. He loves the indiglo function. It seems to be a great watch for a child at a fair price from a trusted (Timex) watch maker. My son puts it on every time he gets up in the morning like it is part of getting dressed. Oh and it's waterproof which came in handy when he got in the shower with it twice in the first week he had it.