Internet access in China for visitors is easy to get and fast: 4G and 5G cover cities, resorts and the highways between them, hotels and coffee shops have Wi-Fi, and airports sell SIM cards against a passport.
The question people are really asking is a different one. Does China have internet? Yes, an enormous one. Does it reach the services you use at home? From Chinese networks, only partly: Google, Instagram, WhatsApp, YouTube and most Western apps are filtered at the national gateways, while local services are fast and unrestricted.
How you get online decides which side of that line you're on. On your home carrier's roaming and on most travel eSIMs, your data exits to the internet in your home country and nothing is filtered. On a local SIM or hotel Wi-Fi, it exits in China, and visitors who want their usual apps add a VPN that was set up before the flight. Below, each option in practice, what works either way, and a pre-flight checklist.
roaming your apps work ✓
travel eSIM your apps work ✓
local SIM cheap, filtered
hotel Wi-Fi same filter
└─ the first two exit at homeRoaming in China: nothing to configure
Switch on data roaming and your phone uses Chinese towers for the radio signal only; the data is handed to your home carrier and reaches the public internet at home. The Chinese gateways see carrier transit, not a user session, and don't filter it. Everything works as at home. The price is the roaming rate, so check your carrier's China package before you fly and turn off any automatic add-on that bumps you to the most expensive tier, and the latency, since every request detours through your home network.
roaming works instantly, costly travel eSIM cheap, set up in advance local SIM cheap, passport needed hotel Wi-Fi free, filtered
Travel eSIM for China: live before you land
A profile of a foreign carrier, often based in Hong Kong or Singapore, that roams in China on the same principle. Bought online, installed from a QR code at home, active when you land, cheaper than home roaming. You need an eSIM-capable, carrier-unlocked phone, and most plans are data-only. Read whose profile it is: a Chinese carrier's eSIM is a local SIM in digital form and is filtered like one. The comparison is in eSIM, roaming or local SIM in China; if it fails to connect on arrival, see eSIM not working in China.
Local SIM in China: cheapest, fastest, filtered
China Mobile, China Unicom and China Telecom sell tourist SIMs at airports and in stores. Passport, a few minutes, and you have the cheapest and fastest data available plus a Chinese number, which some apps and Wi-Fi portals ask for. It is Chinese internet: foreign services need a VPN that was installed and tested at home, and even then it isn't guaranteed on every day. Preparation and the protocol question are in VPN for China: what to know before you land.
usually the strictest network often asks for a phone number often blocks whole protocols └─ try a phone hotspot before concluding your setup is broken
Hotel and coffee shop Wi-Fi in China
It's nearly everywhere and often quick. A lot of networks want a phone number and an SMS code before they let you in, which is one more reason to have a local SIM or roaming live. And it's a Chinese connection with the same filtering, and it's also a shared network: for banking and email on it, a tunnel is worth having in any country. The general rules are in Is public Wi-Fi safe?.
roaming traffic exits at home
filtering does not apply
local SIM traffic exits in China
filtering applies
└─ that single fact explains
most of the confusionWhat works in China on any connection
WeChat and Alipay, which carry nearly all payments, taxis and messaging with hotels. DiDi for taxis, Trip.com for hotels, trains and flights. Baidu Maps and Amap, and Apple Maps with a familiar interface. iMessage and FaceTime. Bing. Most banking apps and airline apps from home. Translation apps with an offline pack downloaded in advance. Plain calls and SMS. Set these up at home and check that you're signed in.
local maps, taxi, payments banking, tickets, hotels most travel and booking sites └─ you do not need a tunnel for day-to-day logistics
What is blocked on Chinese networks
Google search, Maps, Gmail, Drive and the Play Store. Facebook, Instagram, WhatsApp, Messenger and Threads. YouTube, X, Telegram, Signal, Discord, Reddit and Wikipedia. Many Western news sites, some cloud storage and note-taking services, ChatGPT and similar tools. On roaming and a travel eSIM, all of it works; on a local SIM or Wi-Fi, it needs a VPN. The details, service by service, are in Does Instagram work in China?.
Before you land: the checklist
- Choose your connection: roaming or a travel eSIM for a short stay, a local SIM plus VPN for two weeks or more, and roaming as a fallback either way.
- Install WeChat and Alipay, link your foreign card, get through identity verification. QR payments are the default there, and cash still works but gets stranger every year.
- Download offline maps and an offline translation pack; save your hotel address in Chinese characters.
- If you're taking a local SIM, install the VPN, configure two protocols, verify on What Is My IP, and save the configuration.
- Turn off automatic app updates and photo backup over mobile data. They will eat your roaming package alive.
[ ] connectivity chosen and paid for [ ] tunnel tested at home [ ] offline maps and translator [ ] keys saved as plain text [ ] hotel address in Chinese
If something won't load and you can't tell whether the problem is the network, the connection type or the tunnel, describe it.
Help me work out what is wrong with my
connection while traveling.
Where I am: (city, province in China).
Connection: (roaming / travel eSIM / local SIM /
hotel Wi-Fi).
What will not load: (list it).
What loads fine: (list it).
Tunnel: (on and connected / on but will not
connect / not using one).
Tell me which part is failing: the network
itself, the way I am connected, or the tunnel.
And what to check first.
If the data is not enough, ask instead of
guessing.Your first day online in China
Buy the SIM at the airport if that was the plan; it's quicker than in the city. Connect to the hotel Wi-Fi and see which of your services load. If the VPN doesn't connect, change protocol and server, switch between Wi-Fi and mobile data, and if it still fails, use roaming for a few minutes and try again in the evening. Networks and times of day behave differently, and a first-day failure rarely means a whole-trip failure.
404 VPN provides VLESS in its apps for Android and macOS (the platform list is on the download page), DNS inside the tunnel, a kill switch on Android, and locations in Hong Kong and Tokyo, the closest to China. WireGuard is blocked in China, so VLESS is the protocol for this trip. The free plan of 2 GB a day covers the pre-flight checks. We don't promise availability from every Chinese network. Start on the home page.
