Can Huawei Glory 7 Mobile 4g mobile phone be used for Japanese tourism?

You'd better write down the mobile phone model and call the mobile customer service, because I remember that only the mobile customized version of the mobile phone does not support short-term roaming, that is, the network standard of the mobile customized version is different from that of Japanese operators, so you'd better call to check whether your mobile phone can be used, as long as it is not customized by Unicom and full netcom.