I am aware of two right now. They provide cellular data for travel. I haven’t personally used them yet, but may try out later on as I see fit.
MobiMatter (official website; reddit)
Sally (Reddit; heard it from Teacher Mike YT video 1st)
And one to avoid: I bumped into this junk 易博通 eSender last summer, when we were traveling in China mainland and HK. We were hoping to get a mainland mobile phone number for 网约车 rider share car services. After spending some money and back and forth with the customer service, we realized it’s a scam. We found it because they advertised heavily on WeChat.
Other choices:
International roaming
T-Mobile roaming: heard good things about them. Quite a few friends used their international roaming in CHN.
MintMobile International Roaming (minternational pass): their price is quite competitive. Last year I used their pass for my summer trip. This year I may not need it as I am not going to Canada and HK this time. (Update 06/02/25) I still bought the 10 day pass with data due to technical difficulties of connecting to gmail via other means. One thing to note: it cannot be used as hotspot for the MacBook. So in other words, I still need to find other ways if I need to use Gmail on my MacBook (not super critical if I have Gmail on my iPhone).
And I already got a China SIM card. Btw, MintMobile made Canada roaming free since summer/fall of last year.
Side note: from iPhone 14 on, the iPhones sold in the USA no longer have physical SIM card slot (they have eSIM instead). Meanwhile in CHN, a physical SIM card is still needed for a mobile phone – that’s one reason you may consider bring an iPhone 13 or older if you travel to CHN. The reason you may need a mobile phone number is it’s required if you plan to get a Uber 网约车 in CHN. Taxis sometimes are not available and many taxi drivers drive for 网约车平台 too. In that case the two eSIM apps may not be sufficient for you. Because all you have is a mobile phone number outside of CHN which will not work for 网约车。
Note: I still receive spam calls on mint mobile when I travel – and they call during the night, the carrier could not mark them as “spam likely”. This is true for China Unicom SIM card too (the spammers call during the day).
Verizon TravelPass: much more expensive than MintMobile
Note for all the options above, you can get to Google etc. without doing anything special, just like you are in HK.
VPN: obviously you still need your own internet, usually it means Wi-Fi. This may be handy if you need to get to YT or Netflix, because you would likely burn through whatever your data plan fairly quickly if you stream.


