Talk:China/@comment-26423297-20180530160456/@comment-32853647-20180531073913

Most modern higher-end mobiles support all frequencies for TD-SCDMA and TD-LTE so China Mobile is not a big problem any more (not that it's particularly fast to use TD-SCDMA).

Many of the data SIMs for mainland China sold in Hong Kong are not rechargable (and some are only valid in Guangdong province). I think the only rechargable option with 4G from China Unicom Hong Kong is the Cross Border King with a HK only number. You can charge HK$148 for 2GB valid for 30 days.