Everything you need to know about using an eSIM in Hong Kong.
Hong Kong runs four solid networks, CSL, Three, SmarTone, and China Mobile, with dense 4G and 5G coverage across the territory. An eSIM Hong Kong plan gets you online the second you land, no airport counter, no passport handed to a carrier.
Here's the thing that catches most travellers: since 2022, every SIM in Hong Kong, prepaid included, must be registered to a real identity under the Telecoms SIM Registration Regulation. Tourists register with a passport. There is no anonymous local SIM, full stop.
You can buy a prepaid SIM at an airport kiosk with your passport, but that means handing your ID to a carrier or a third-party reseller who may not shred it. Your name, date of birth, and passport number sit on file.
Hong Kong's privacy law, the PDPO, is solid on paper and says data shouldn't outlive its purpose, but carriers do retain billing and connection logs, and the enforcement is lighter than the GDPR.
One more thing: Hong Kong is a Chinese SAR. The real-name regime mirrors mainland rules, and if you cross into mainland China, you're onto the mainland's PIPL regime, which is more expansive still. Hong Kong isn't a privacy paradise.
For a 3 to 10 day trip, 3 to 10 GB covers maps, messaging, and photo uploads. A roaming eSIM paid in crypto skips the passport, the registration, and the paper trail entirely. Same dense networks, none of the identity handover.