eSIM for China: Google, WhatsApp, payments and what actually works

A travel eSIM for China is a roaming data plan: your iPhone connects to a Chinese mobile network for signal, but your data is carried back through the eSIM provider's home network outside the mainland, usually Hong Kong. In practice, as of 2026, that means apps blocked on Chinese wifi and local SIMs, like Google, WhatsApp and Instagram, generally work over the eSIM without anything extra installed. Cabin Mode's China plans run from 1 GB to 50 GB; this guide covers what to expect, what doesn't work, and the setup that's worth doing at home.

How a travel eSIM behaves in China

Mainland China filters internet traffic that passes through domestic networks. That covers local SIM cards, hotel and café wifi, and any connection that reaches the internet from inside the mainland.

International roaming works differently, and it's the same for every visitor using their home SIM abroad: the local network provides the signal, but the data session is handled by the roaming provider's home network. Cabin Mode's plans come from a provider that uses this kind of home-routed roaming, and for China plans the exit point is typically Hong Kong. Travellers consistently report that Google, Gmail, WhatsApp and similar services load normally on roaming connections like this.

Three honest caveats:

It isn't guaranteed. This is how roaming works today, not a promise about what any government or network will do next month. Keep offline copies of anything essential, like hotel confirmations, tickets and your itinerary.
Some services restrict Hong Kong IP addresses. A few apps and streaming services limit access from Hong Kong. If one won't open, that's usually why, not the eSIM failing.
Wifi is still filtered. The moment your phone joins hotel wifi, you're on a domestic connection. If something stops working indoors, turn wifi off and use mobile data.

This isn't advice to work around Chinese law. We don't recommend installing a VPN; their legal status for personal use in China is ambiguous, and you don't need one to use a roaming connection as it's designed.

What China data costs

Data	Valid for	Price (USD)	Per GB
1 GB	7 days	$1.40	$1.40
3 GB	15 days	$3.80	$1.27
5 GB	30 days	$5.92	$1.18
10 GB	30 days	$11.70	$1.17
20 GB	30 days	$20.50	$1.02
50 GB	30 days	$50.00	$1.00

Prices checked 25 September 2026; the app shows current prices in your currency. See every China plan.

There are also day passes, 1 GB for a day from $1.30, useful for a short visa-free transit stop in Shanghai or Beijing.

How much data for China

You'll probably use more mobile data in China than elsewhere, for two reasons: you'll avoid hotel wifi for anything filtered, and payments, taxis, maps and translation all run through apps.

One week: 5–10 GB
Two weeks: 10–20 GB
Working, or relying on mobile data instead of hotel wifi: 20 GB or the 50 GB plan

Roaming via Hong Kong adds some latency, so pages and video can feel slightly slower than the signal bars suggest. It's fine for maps, messages and browsing. How much data do I need for a trip has the per-app numbers.

Coverage

China's mobile networks are extensive. Cities have dense 5G, high-speed rail lines are covered along almost their whole length, and popular destinations like Guilin, Zhangjiajie, Chengdu and Xi'an are well served. Signal gets thinner in the remote west, on high mountain routes, and in very rural areas, but that affects few itineraries.

Cabin Mode's China plans support 5G where the partner network provides it.

Payments: set up Alipay and WeChat Pay at home

China runs on mobile payments. Cash still works, and international cards are accepted in more places than a few years ago, but small shops, street food and taxis are much easier with an app.

Both Alipay and WeChat Pay now let foreign visitors link a Visa or Mastercard and verify with a passport, without a Chinese bank account or phone number. Do it before you leave:

Install the app and register with your home phone number; it has to receive an SMS code.
Add your card and complete passport verification, which usually includes a face scan.
Make a small test payment, and tell your bank you'll be in China so the first payment isn't flagged.

Your bank may send a verification text when you add the card. That's why Cabin Mode being data only is useful here: your home SIM stays in the phone, so those codes keep arriving. Leave your home line on for texts with data roaming off for it.

Ride-hailing (Didi) can be booked from inside Alipay, which saves installing another app.

Maps and getting around

Google Maps loads over a roaming connection, but its map data for mainland China is thin and sometimes offset from the satellite view. Apple Maps uses local map data in China and is the better choice for walking and transit directions. Amap (Gaode) is what most locals use, if you're comfortable in a Chinese-first interface.

Translation apps are worth downloading for offline use too. Menus, station signs and taxi conversations are easier with camera translation.

Local SIM or travel eSIM

A local Chinese SIM card needs passport registration at an operator store, and because it's a domestic connection, it's filtered like hotel wifi. It's cheaper per GB for long stays and gives you a Chinese number, which some local services want.

For most visitors, the travel eSIM is the simpler option: nothing to register on arrival, your home number still works for bank codes and Alipay verification, and your usual apps keep working. The general comparison is in travel eSIM vs roaming vs a local SIM.

Hong Kong and Macau are separate

A mainland China plan covers the mainland only. Hong Kong and Macau are separate networks and need their own plan, or a combined one:

Hong Kong on its own: 5 GB for 30 days is $5.40.
China (mainland, Hong Kong and Macau) on one eSIM: 10 GB for 30 days is $19.80.
China mainland, Japan and South Korea: 10 GB for 30 days is $30.40. See the plan.

If you're flying into Hong Kong and taking the train to Shenzhen or Guangzhou, the combined plan saves switching at the border. Our Japan and South Korea guides cover the other common legs.

Before you fly

Install the eSIM on home wifi, following how to install an eSIM on iPhone. When you land in Beijing, Shanghai or Guangzhou, set mobile data to the Cabin Mode line, turn on data roaming for that line only, and turn wifi off if a blocked app won't load.

Before you leave home, also download: offline maps, your hotel addresses in Chinese characters, and copies of bookings. If you run low, a top-up adds data to the same eSIM without reinstalling. Usage in the app lags one to three hours.

Frequently asked questions

Does WhatsApp work in China with an eSIM?

Usually, yes. Travel eSIMs like Cabin Mode's are roaming connections routed through a network outside the mainland, typically Hong Kong, and as of 2026 travellers report WhatsApp and Google working normally over them. It stops working on Chinese wifi, and it isn't guaranteed, so keep offline copies of essentials.

Do I need a VPN in China if I have an eSIM?

Generally not. The roaming connection already reaches the internet outside the mainland. We don't recommend VPNs in China; their legal status for personal use is unclear.

Why do Google and Instagram stop working on hotel wifi?

Hotel wifi is a domestic Chinese connection and is filtered. Turn wifi off and use your eSIM's mobile data for those apps.

Can I set up Alipay with a foreign phone number?

Yes. Alipay and WeChat Pay accept foreign numbers, foreign Visa and Mastercard cards and passport verification. Set them up at home, where SMS codes arrive reliably.

Does a China eSIM work in Hong Kong?

A mainland China plan doesn't cover Hong Kong or Macau. Buy a separate Hong Kong plan, or a combined China, Hong Kong and Macau plan if you're crossing between them.

Does ChatGPT work in China with an eSIM?

Not reliably. Some services, including some AI chat apps, restrict access from Hong Kong IP addresses, which is where roaming data for China usually exits. This is the service's own restriction, not the eSIM.