Hong Kong SIM card for tourists 2026: airport or eSIM?
Where to buy a SIM card in Hong Kong, what the counter asks for, coverage in Hong Kong, and when an eSIM installed before you fly is the better buy.
Short answer: A tourist SIM card in Hong Kong is bought at a counter after you land in Hong Kong; a ONE eSIM plan for Hong Kong is installed at home on Wi-Fi, works the moment you land and leaves your own SIM and number in place. Both work in every city in this guide.
Landing in Hong Kong and wondering whether to queue for a SIM card? This is how buying one works in Hong Kong in 2026, what the counter will ask you for, and when an eSIM bought before you fly is the better deal.
Where to buy a SIM card in Hong Kong
CSL, SmarTone, 3 and China Mobile Hong Kong sell prepaid tourist SIM cards in 7-Eleven and Circle K stores, the airport shops and their own outlets. Since 2023 each card must be registered in your real name with your passport, which can be done in the store or online before the card works.
Tourist SIM card or travel eSIM?
| SIM card in Hong Kong | ONE eSIM Our price | |
|---|---|---|
| Where you get it | Airport counter or a shop | On this site, in a minute |
| When it works | After the counter and the swap | The moment you land |
| Your home number | Out of the phone | Stays in for calls and texts |
| Paperwork | Often a passport and a form | None |
| Validity | Sized by the month | From one day; top up when you need |
| If it fails | Back to the shop | Refunded in full before installation |
An eSIM is a plan downloaded onto a phone that supports it, which is every iPhone since the XS and most Android flagships since 2020. You install it on Wi-Fi at home, keep the line switched off, and turn it on when the plane lands in Hong Kong. The plan starts the first time it connects, not when you buy it.
Coverage in Hong Kong, Kowloon and Lantau and beyond
Both a local SIM and a travel eSIM run on the same networks in Hong Kong, so coverage is about the operator, not the kind of SIM. Our plans name their operator and whether it runs 3G, 4G or 5G; each plan card shows its best generation. In Hong Kong, Kowloon, Lantau and Macau you will have a full signal from any of them.
FAQ: SIM cards and eSIMs in Hong Kong
- Do I have to register a prepaid SIM card in Hong Kong? Yes. Real-name registration became mandatory for all prepaid SIM cards in 2023, visitors included.
- Will a Hong Kong SIM card work in mainland China? Only on a pack that includes mainland data. A Hong Kong plan does not cover Shenzhen or Guangzhou unless it says so.
Before you fly
- Check your phone supports eSIM and is not carrier-locked (our device page lists every model).
- Buy the plan a few days before the trip and install it on home Wi-Fi; the QR code arrives by email in minutes.
- Keep the travel line off until you land, then turn it on with data roaming enabled for that line only.
- Leave your home SIM in for calls and texts; set the eSIM as the mobile data line.
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