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Internet in China: eSIM First, Offline Always

By Joy (雨洁) — certified Chinese teacher from Nanjing, the voice of the China Survival Kit app. Updated July 2026.

Two ways to get data in China

You have two realistic options as a tourist: an eSIM you buy before departure, or a physical SIM card from a counter after you land. Both give you mobile data. The difference is when it starts working and how much standing in line is involved.

The short answer: if your phone supports eSIM, buy one before you fly. It activates when you land, which means you walk off the plane with working maps and a working translator instead of hunting for airport wifi.

Whichever you choose, don't stop there. The most reliable internet strategy for China is assuming you'll sometimes have none — more on that below.

eSIM: buy it before you fly

An eSIM is a digital SIM you install by scanning a QR code — no plastic, no counter. You buy a China data plan online, install it at home over wifi, and switch it on when your plane touches down.

Two things to check before paying. First, your phone must support eSIM — most recent iPhones and flagship Androids do, but confirm in your settings. Second, your phone must be unlocked; a phone locked to your home carrier can refuse a foreign plan.

Most travel eSIMs for China route your data through international roaming. In practice that often means your usual apps keep working on mobile data even when they wouldn't on a local network — but providers change their setups, so read recent reviews of any provider close to your travel dates.

Install the eSIM at home, days before departure. If something goes wrong, you want to be on your sofa with good wifi, not in an arrivals hall.

Put a real Chinese voice in your pocket

Every phrase on this page — and 200+ more — lives in the China Survival Kit app: tap to show it big, play it in teacher Joy's real voice, and let locals tap their answer back. Works 100% offline.

Get the appFree 30-phrase audio guide

Physical SIM at the airport counter

If your phone can't do eSIM, the airport counter is your fallback. Major international airports generally have carrier counters in the arrivals area selling tourist data packages.

Bring your passport. As of 2026, SIM cards in China are registered to a real identity, so the clerk will scan or photograph your passport as part of the sale — this is standard procedure, not a scam. Budget some time, especially if a full flight landed just before yours.

Counters may keep limited hours, so a late-night arrival can mean no SIM until morning — one more argument for the offline preparation below. For everything else between the plane and the taxi, see the airport arrival guide.

Where can I buy a SIM card?
请问在哪里可以买电话卡?
Qǐngwèn zài nǎlǐ kěyǐ mǎi diànhuàkǎ?

Hotel wifi: usually there, rarely perfect

Almost every hotel that takes foreign guests offers free wifi, and in cities it's generally fast enough for video calls. Ask for the password at check-in — reception staff answer this question a dozen times a day.

One thing travelers miss: hotel wifi is still a Chinese network. Apps and websites that don't load on a local SIM won't load on hotel wifi either, no matter how strong the signal is.

What's the wifi password?
请问WiFi密码是多少?
Qǐngwèn WiFi mìmǎ shì duōshǎo?
Can you help me connect to the wifi?
可以帮我连一下WiFi吗?
Kěyǐ bāng wǒ lián yíxià WiFi ma?

Why offline-first beats any SIM

Here's the honest part most eSIM ads skip: internet access in China can be unpredictable for visitors. Some foreign apps and sites are unreachable on local networks, roaming setups change, and rules shift without notice. Treat any specific "this app works, that one doesn't" claim as perishable and verify it shortly before you fly.

The fix is not a better SIM. It's making sure the tools you'll actually need — maps, translation, key phrases, booking details — work with no connection at all. A phone that's useful offline turns every network problem from a crisis into a shrug.

The apps for your China trip guide covers what to install; the checklist below covers what to download into those apps before you board.

Don't plan to "sort out the internet after landing." If your arrival depends on live data — a booking confirmation sitting in your email, a translation app that needs a server — one dead network can strand you. Download everything first.

The download-before-you-fly checklist

Do all of this at home, on fast wifi, at least a day before departure:

  1. Offline maps. Download the map areas for every city on your route, plus offline search if your map app offers it.
  2. Offline translation packs. Install the Chinese language pack in your translation app so camera and text translation work in airplane mode.
  3. An offline phrasebook with audio. The China Survival Kit app works fully offline — every phrase is recorded by a real teacher, so you can play it to a driver or a pharmacist with zero bars.
  4. Screenshots of everything. Hotel bookings with the address in Chinese characters, flight details, insurance, and your first-night route from the airport.
  5. Your first phrases. Grab the free 30-phrase audio guide and listen on the flight — arrival day goes smoother when "hello", "thank you" and "how much" are already in your ear.

Some travelers also set up a VPN before departure. If that's part of your plan, configure and test it at home — sorting it out after you arrive is much harder.

My phone has no internet.
我手机没网了。
Wǒ shǒujī méi wǎng le.

Quick answers

Do I need an eSIM or a physical SIM card for China?

If your phone is unlocked and supports eSIM, buy an eSIM before departure — it activates when you land. If not, buy a physical SIM at an airport carrier counter after arrival and bring your passport, since real-name registration requires it as of 2026.

Does hotel wifi in China work with foreign apps?

Hotel wifi is a Chinese network, so anything that won't load on a local SIM won't load there either. Access rules change, so verify close to your trip — and download offline maps, translation packs and a phrasebook before you fly.

Do I need my passport to buy a SIM card in China?

Yes. As of 2026, SIM cards in China are registered to a real identity, so the counter staff will scan your passport as part of the sale. It's standard procedure, not a scam.

What should I download before flying to China?

Offline maps for every city on your route, offline translation language packs, an offline audio phrasebook, and screenshots of your bookings with addresses in Chinese characters. Do it all at home on fast wifi.

Put a real Chinese voice in your pocket

Every phrase on this page — and 200+ more — lives in the China Survival Kit app: tap to show it big, play it in teacher Joy's real voice, and let locals tap their answer back. Works 100% offline.

Get the appFree 30-phrase audio guide
Keep reading The Apps That Work in China, Job by Job Your First Two Hours After Landing in China The 30 phrases that save your China trip (free, with audio)