Sure, the screen size of the phone watch is small, all the words and patterns will be more concentrated, and children must get it close to their eyes if they want to see it clearly. Moreover, the resolution of the electronic screen of the phone watch is much worse than that of the mobile phone. Long-term use of the phone watch will do great harm to children's eyes and easily cause myopia. In addition to hurting eyes, many phone watches are now equipped with games and video functions, which children play every day, seriously affecting their studies. Because of these reasons, I didn't buy a phone watch for my children, but I bought him a short-sighted deer positioning phone. It can make calls and locate like a phone watch, but there is no screen. All operations are done through voice interaction and key matching, so don't worry about hurting your eyes. Moreover, there is no online dating and entertainment function in this children's phone, and I am not worried about affecting my study. I feel that it is quite suitable for children.