eSIM for Hong Kong (2026): coverage, mainland China crossings, Macau, and which plan to buy
A Hong Kong eSIM covers the city, the MTR and the islands but stops at the mainland border. Prices, Shenzhen and Macau crossings, and the apps worth installing.
· 8 min read
A travel eSIM covers everything most visitors do in Hong Kong: the MTR, the trams, the Peak, the outlying islands and the hiking trails. With Cabin Mode, 10 GB for 30 days in Hong Kong costs $9.40, and a 3 GB plan at $3.40 is enough for a two-day stopover. The one thing to plan for is the border: a Hong Kong plan doesn't work in Shenzhen or anywhere else on the mainland, and Macau is a separate destination too.
Hong Kong plans and prices
The Hong Kong-only plans at trip-sized allowances:
| Data | Valid for | Price (USD) | Approx. GBP | Per GB |
|---|---|---|---|---|
| 1 GB | 7 days | $1.40 | £1.06 | $1.40 |
| 3 GB | 15 days | $3.40 | £2.57 | $1.13 |
| 3 GB | 30 days | $3.60 | £2.72 | $1.20 |
| 5 GB | 30 days | $5.40 | £4.08 | $1.08 |
| 10 GB | 30 days | $9.40 | £7.11 | $0.94 |
| 20 GB | 30 days | $16.40 | £12.41 | $0.82 |
| 50 GB | 30 days | $34.00 | £25.72 | $0.68 |
| 50 GB | 180 days | $56.00 | £42.36 | $1.12 |
Prices checked 25 September 2026, and they can change. Pound figures are approximate, using the 24 September 2026 reference rate of £0.75645 to the dollar (A$1.4232 for Australian dollars); Cabin Mode charges in the currency shown in the app. See all current Hong Kong plans.
Most plans start on first connection to a network in Hong Kong, and a few start at install. The plan listing shows which. For a stopover on the way to somewhere else, a plan that starts on connection means you can install it at home without the clock running.
How much data a Hong Kong trip uses
Hong Kong is compact, the MTR is easy, and free public Wi-Fi (branded Wi-Fi.HK) is common in government venues, parks and many MTR stations. Most visitors use less data here than in a sprawling country.
Stopover, one to three days. Maps, the MTR app, restaurant searches and messaging. Under 1 GB a day. The 3 GB 15-day plan at $3.40 covers it.
A week, including day trips. Lantau, Lamma, Sai Kung, a hike or two, and uploading photos. Plan on 5 GB; the 10 GB plan at $9.40 is the comfortable choice if you post a lot.
A month or more, or working remotely. Video calls and hotspot use add up quickly. The 50 GB 30-day plan works out at $0.68 per GB, the lowest here. Hotspot support varies by plan, so check the listing if you'll tether a laptop.
The per-app numbers are in how much data do I need for a trip.
Coverage in Hong Kong
Hong Kong has four mobile network operators: csl (part of HKT), SmarTone, 3 Hong Kong and China Mobile Hong Kong. All four cover practically the whole territory, and 5G is widespread in the urban areas.
The MTR. Stations, platforms and tunnels have mobile coverage across the network, including the cross-harbour sections and the Airport Express. You can keep a video call going between stations, which isn't true of many metro systems.
Streets and towers. Signal is strong at street level. Deep inside large malls and older buildings it can weaken, though most malls and hotels have Wi-Fi.
Hiking trails and country parks. Dragon's Back, the Peak circle walk and most of the Hong Kong Trail have good coverage. On the MacLehose Trail in the New Territories, the Lantau Trail and remote Sai Kung beaches, you'll find gaps in valleys and on the far side of ridges. Download offline maps and tell someone your route for the longer hikes.
Outlying islands. Lamma, Cheung Chau, Lantau and Peng Chau are all covered on land, and the ferries stay close enough to shore that you rarely lose signal on the crossing.
Crossing into mainland China
This is the part of a Hong Kong trip where connectivity planning actually matters.
The Hong Kong plan stops at the border. Shenzhen, Guangzhou and the rest of the mainland are a separate destination with different networks. The Hong Kong plan's coverage list shows Hong Kong only, so once you've crossed at Lo Wu or Lok Ma Chau, or arrived in Shenzhen on the high-speed train from West Kowloon, it won't connect.
Your options for a Shenzhen day trip or a longer mainland leg:
- A second plan for mainland China. Keep the Hong Kong eSIM and install a China plan alongside it. Your iPhone holds several eSIMs and you switch which one carries data in Settings > Cellular > Cellular Data. Check the app for a combined China, Hong Kong and Macau plan too, which saves switching at every crossing.
- Install before you cross. Setting up an eSIM needs an internet connection, and it's easier on Hong Kong data or hotel Wi-Fi than at the border.
The mainland internet is different. Google, WhatsApp and Instagram are blocked on Chinese Wi-Fi and local SIMs. Travel eSIMs for China are roaming connections that usually reach the internet from outside the mainland, which is why those apps generally keep working. The full picture, including what can still fail, is in the China eSIM guide.
Near the border. In the northern New Territories, around Lok Ma Chau and Sheung Shui, your iPhone can occasionally pick up a mainland network. If data drops there, go to Settings > Cellular > [your travel eSIM] > Network Selection, turn off Automatic and choose a Hong Kong network. Make sure Data Roaming is off on your usual line, so a stray mainland connection can't run up roaming charges from your home carrier.
Macau
Macau is a separate destination from Hong Kong, with its own networks. The Hong Kong plan's coverage list doesn't include it, so for a day trip by ferry or across the Hong Kong–Zhuhai–Macau Bridge, add a small Macao plan or use a regional plan that covers both.
The Asia (14 areas) plan lists Hong Kong and Macau, along with Japan, South Korea, Taiwan, Thailand, Vietnam, Cambodia, Laos, Malaysia, Indonesia, the Philippines, India and Bangladesh. 5 GB for 30 days is $8.32 and 10 GB is $15.18. It doesn't include mainland China or Singapore. For Hong Kong alone the country plan is cheaper; for Hong Kong plus Macau, or a Hong Kong stopover on the way to Japan or Taiwan, the regional plan saves juggling eSIMs.
Apps that need data in Hong Kong
- Octopus for Tourists. Octopus pays for the MTR, buses, trams, ferries and convenience stores. The Octopus for Tourists app lets visitors add an Octopus card to Apple Wallet and top it up with a non-Hong Kong card. Set it up before you fly and you can tap through the gates at the airport.
- MTR Mobile and Citymapper. Journey planning, exits and live service updates. Hong Kong's big stations have dozens of exits, and choosing the right one saves a lot of walking.
- OpenRice. The standard local restaurant guide, with reviews, menus and queue tickets for popular places.
- Uber and taxi apps. Uber operates in Hong Kong alongside the red, green and blue taxis. Screenshots of your destination in Chinese help with drivers.
- Weather. The Hong Kong Observatory's MyObservatory app shows typhoon signals and rainstorm warnings, which close parks and suspend ferries in summer.
A note on online services: some services, including some AI chatbots, don't officially support Hong Kong. That's the service's own restriction, not the eSIM.
Local tourist SIMs and real-name registration
Since 1 March 2022, every prepaid SIM in Hong Kong has required real-name registration with the operator, according to the Office of the Communications Authority. Visitors can register with a passport, but registration can take time to process. Tourist SIMs are sold at the airport and convenience stores, and some include Macau data. A travel eSIM skips the registration and is working before you've cleared immigration. The trade-offs are in eSIM vs roaming vs a local SIM.
Arriving at Hong Kong International Airport
- Install the eSIM at home on Wi-Fi before you travel.
- When you land, turn off Airplane Mode.
- In Settings > Cellular, choose the travel eSIM for Cellular Data.
- Turn Data Roaming on for the travel eSIM, and leave it off on your usual line.
A Hong Kong network name should appear within a minute or two. If it doesn't, toggle Airplane Mode on and off once. Your iPhone needs to be an XR or later and carrier-unlocked. Cabin Mode plans are data only, so calls go over WhatsApp, iMessage or FaceTime, and your usual line stays active for SMS codes.
Frequently asked questions
Does a Hong Kong eSIM work in mainland China?
No. The Hong Kong plan covers Hong Kong only. For Shenzhen, Guangzhou or anywhere on the mainland, add a China plan, or look for a combined China, Hong Kong and Macau plan in the app.
Does a Hong Kong eSIM work in Macau?
Not the Hong Kong-only plan. Add a Macao plan, or use Asia (14 areas), which covers both Hong Kong and Macau on one eSIM.
Does my eSIM work on the MTR?
Yes. Mobile coverage extends through MTR stations and tunnels, including the cross-harbour sections and the Airport Express.
How much data do I need for a Hong Kong stopover?
For one to three days, 3 GB is plenty. The 3 GB 15-day plan costs $3.40, and public Wi-Fi covers some of your use.
Do I need to register a SIM in Hong Kong?
Local prepaid SIMs need real-name registration with a passport, a rule that has applied since 2022. A travel eSIM bought before you fly doesn't involve local registration.
Does WhatsApp work in Hong Kong?
Yes. Hong Kong doesn't block WhatsApp, Google or Instagram. The restrictions apply on the mainland, which is why the crossing needs planning.
Can I use Octopus on my iPhone as a tourist?
Yes. The Octopus for Tourists app adds an Octopus card to Apple Wallet, and you can top it up with a card issued outside Hong Kong.