Does 3HK Work in China?

3HK doesn't promise it for prepaid SIMs, but one independent test found it works. 3HK's page for its Chinese Mainland & Macau 3-Day Pass says no VPN is needed to use WhatsApp, Facebook and Instagram, as in Hong Kong. That pass is only for 3HK postpaid customers, and 3HK's prepaid pages don't mention routing. Find Your eSIM tested a 3HK eSIM bought through MobiMatter in China, mainly around Shenzhen. It got past the firewall with Hong Kong routing. MobiMatter's listing for a 3HK China, Hong Kong and Macau plan also gives Hong Kong as the IP routing.

Not reliably. Find Your eSIM says TikTok and AI apps probably won't work on Hong Kong routing, because those companies block access from Hong Kong themselves.

A Hong Kong number. 3HK's prepaid terms say each new prepaid SIM comes with a new mobile number, unless you port in your own. A mainland number is a separate 3HK service, "內地及港澳一卡多號" (one card with mainland, Hong Kong and Macau numbers). It adds a China Unicom mainland number and a Macau number to a 3HK Hong Kong number, for a monthly fee. Its terms don't say whether prepaid or visiting customers can get it. 3HK eSIMs sold by MobiMatter are data-only, with no phone number.

Yes. 3HK sells prepaid SIMs online in its DIY Prepaid shop, and its China passes work on physical SIMs and eSIMs. You must register the SIM in your real name. 3HK says visitors without a Hong Kong ID can register with a valid travel document, which doesn't include a BN(O) passport. MobiMatter also resells 3HK eSIMs in US dollars. It says registration is only needed to use them in Hong Kong.

3HK prices its passes in Hong Kong dollars. On October 9, 2026, a 24-hour pass for China, Hong Kong, Macau and Taiwan cost HK$10. A 30-day pass for China, Hong Kong and Macau cost HK$138 for 15 GB or HK$198 for 30 GB. A 365-day pass with 45 GB cost HK$268. On the same day, MobiMatter sold a 3HK eSIM with 15 GB for China, Hong Kong and Macau over 180 days for $16.99.

Not confirmed. 3HK's prepaid pages don't name the mainland network. MobiMatter's listing for the 3HK plan it sells names China Telecom and China Unicom 5G, and says the operator can change networks without notice.

Not confirmed. 3HK's prepaid pages don't mention a VPN.

Yes, as far as 3HK is concerned. Its DIY Prepaid terms say it doesn't restrict tethering on travel data packages, but availability depends on the network in each destination. MobiMatter says hotspot works on the 3HK plan it sells.

3HK's DIY Prepaid terms say no refund or replacement is given once a SIM is sold, and that if you end a travel pass early, its unused data is lost. Its prepaid terms add that credit in your prepaid account is non-refundable, non-transferable and can't be exchanged for cash, even if the SIM is lost or damaged.