The single most common piece of bad advice given to first-time visitors to China is “your hotel has Wi-Fi, you will be fine.” Hotel Wi-Fi in China is a connection to a mainland network. It is not the internet you use at home, and it is not a substitute for a working mobile plan. Understanding that distinction before you fly saves an enormous amount of frustration on arrival.
This guide covers what is actually restricted, how the three options for staying connected really compare, and what to configure before you board.
What is actually restricted
China operates a national internet filtering system. A number of services that many travellers treat as basic utilities are not reachable from mainland networks. In practice the ones that affect a trip most are Google (including Gmail, Google Maps and Google Translate), WhatsApp, Instagram, Facebook, X, YouTube and most Western news sites.
What still works normally: WeChat, Alipay, Baidu Maps, Amap, Didi, Taobao, Trip.com, most international airline and hotel websites, and generally any service with a mainland presence. Apple services such as iMessage and FaceTime typically work. Microsoft and most business software function normally.
Two practical consequences follow immediately. First, Google Maps does not work — plan on Amap (Gaode) or Baidu Maps instead. Second, if you rely on Google Translate, the app will not reach its servers on a mainland connection unless you downloaded the offline Chinese language pack in advance. Do that at home, on your own network, before you fly.
The three ways to get online
There are essentially three routes, and they behave very differently.
| Option | How it works | Setup | Typical cost | Best for |
|---|---|---|---|---|
| International roaming | Your home carrier’s plan; traffic routes through your home network | Nothing — enable data roaming | Often USD 8–15 per day | Short trips, total simplicity |
| Reis-eSIM | A data-only eSIM installed on your phone; traffic routes internationally | Install before departure, activate on landing | USD 5–30 for the trip | Most travellers — best value and control |
| Local SIM | A mainland carrier SIM bought on arrival | Shop or airport counter, passport registration required | From RMB 50–100 | Long stays, or when you need a mainland number |
The important structural difference is routing. Roaming and international travel eSIMs route your traffic outside the mainland network, which is precisely why they are the recommended option for visitors who need their usual apps. A local mainland SIM gives you the cheapest data and a Chinese phone number you may need for app registrations, but it sits inside the mainland network.
If your priority is a working connection to the apps you already use, a travel eSIM for China is the straightforward answer. If you are staying a month or more and need a local number, add a mainland SIM as a second line.
Why a mainland SIM is harder than it looks
Buying a local SIM is not difficult, but it is not a two-minute airport kiosk purchase either. You need your passport, the SIM must be registered to it by law, and the included data volume is usually modest by international standards. More importantly, many of the services you may assume are included — the app stores, the maps, the messaging apps — behave differently on a mainland connection.
A tourist SIM also typically comes with a validity window and needs topping up through a Chinese payment app. If you have not yet set up Alipay or WeChat Pay, that becomes a chicken-and-egg problem. It is solvable, but it is a reason most short-stay visitors now choose an eSIM instead.
Hotel Wi-Fi, honestly assessed
Hotel Wi-Fi in China is generally fast and free, and in a modern chain property it is perfectly good for video calls within the mainland network, for messaging, and for anything web-based that has a Chinese presence. What it will not do is substitute for a mobile plan.
The failure mode is specific and predictable: you check in, connect to the lobby Wi-Fi, and everything works. Then you walk out to find a restaurant, the Wi-Fi drops, and you have no map, no translation, and no way to call a car. Wi-Fi is a convenience, not a plan.
Treat hotel Wi-Fi as a bonus. Carry your own connectivity.
Configuring for offline use before you fly
Half an hour of preparation at home removes most arrival friction. Do all of this on your own network.
Download offline map areas. Amap and Baidu Maps both support offline city data. Google Maps offline areas still work once downloaded, though you cannot search live addresses.
Download offline translation. Install the Google Translate app and download the Chinese (Simplified) offline pack. Also install Pleco for dictionary lookup, which works entirely offline and handles handwritten characters.
Screenshot your essentials. Hotel name and address in Chinese characters, your flight details, your first destination, and your eSIM provider’s activation instructions. A screenshot works with no signal at all.
Install your eSIM at home, activate on landing. Most travel eSIMs give you a QR code that should be installed while you still have reliable internet. Activation is then a settings toggle when you land — typically switching your cellular data line to the eSIM and enabling data roaming on that line only.
Save your important documents offline. Passport photo page, visa, travel insurance policy, and hotel confirmations in a local folder on the device.
On VPNs, plainly
This is worth stating accurately rather than sensationally. Unauthorised VPN use is regulated in China, and travellers should not assume that any given commercial VPN service will work, will keep working, or is lawful to use. Services change, are blocked, and are re-blocked constantly, so claims that a particular VPN “works in China” are unreliable by nature.
What is not ambiguous is the commercial option: international roaming and internationally routed travel eSIMs are ordinary products sold openly by carriers and travel-data providers, and they are what most visitors use. That is the recommendation here. We do not provide instructions for circumventing network controls, and you should treat any guide that does with scepticism about its accuracy as well as its advice.
Before you land — a short checklist
Install and activate an internationally routed data plan before departure. Download offline maps, offline translation, and the Pleco dictionary. Screenshot your hotel address in Chinese. Make sure your phone is carrier-unlocked so an eSIM can be added. Save insurance and booking documents locally. Set your calendar reminder to switch the data line on the eSIM when the wheels touch down.
Do those six things and the connectivity problem disappears entirely, which leaves you free to deal with the things that actually matter — like which of the three Great Wall sections to visit, or how far in advance to book a Forbidden City ticket.
How much data you actually need
Travellers consistently overbuy data for China, then discover the bottleneck was never volume. A normal day of travel — maps, ride-hailing, translation, messaging, some photo uploads and a bit of video — sits comfortably under one gigabyte. Heavy users who stream video or take a lot of video calls might reach two.
For a ten-day trip, a 10–20 GB plan is generous for almost anyone. The variables that actually matter are different ones: whether the plan routes internationally, how many devices you need to connect, and whether the plan supports hotspot tethering so a laptop or tablet can share the connection.
Two operational details worth checking at purchase. First, confirm the plan allows personal hotspot — not all travel eSIMs do, and it is the difference between one connected device and a working setup for two people. Second, check whether the plan is data-only or includes a phone number. Most travel eSIMs are data-only, which is fine because messaging apps cover voice and text, but you should know before you rely on receiving an SMS verification code for a bank or a booking platform.
If your connection fails on arrival
Occasionally an eSIM activates but does not connect, or connects and then fails. Almost every case resolves with the same short checklist, in this order.
Confirm you are on the right line. Set the eSIM as your cellular data line and turn on data roaming for that line specifically. Roaming must be enabled on the travel eSIM; this is the single most common cause of a dead connection.
Confirm the plan has actually started. Some plans activate on first connection to a network in the destination, others on installation, others on a fixed date you chose. Check the provider app or portal for a start timestamp.
Toggle airplane mode for thirty seconds, then re-enable. This forces the device to re-register on the local network and clears a large share of activation stalls.
Check APN settings. A minority of eSIMs need a manually entered APN, which the provider documents. If the plan works for data but nothing loads, this is the first thing to check.
Have a fallback that does not depend on your phone. Know the airport’s Wi-Fi situation, and carry your hotel’s address in Chinese characters on paper or a screenshot. If everything electronic fails at midnight, that single piece of paper is what gets you to a bed.
Questions we get asked most
Can I just buy a SIM at the airport? Yes, and it works. You will need your passport for the mandatory registration, and you will be inside the mainland network from that point on. If you specifically need internationally routed data, buy before you fly instead.
Will my normal phone work? If it is carrier-unlocked and supports eSIM, yes. Locked handsets cannot add a travel eSIM, so check this at home — it is not solvable on arrival.
Can I keep my home number active? Yes. Dual-SIM operation lets you keep your home line for calls and messages while the eSIM carries data. Turn off data roaming on your home line to avoid a large bill, and note that any SMS-verification codes your home number receives will still arrive.
Is Wi-Fi in cafés and malls enough? As a supplement, yes; as a plan, no. Public Wi-Fi in China frequently requires a phone number for the login SMS, which is precisely what a visitor may not have.
Do I need to do anything about power? China uses 220V with Type A, C and I sockets — the same plug shapes used in much of Europe and North America. Most phone chargers work with a simple plug adapter. Bring a universal adapter rather than assuming your home plug fits.
If you would rather not assemble all of this yourself, our China travel eSIM plans are built precisely for this scenario, and our comparison of the best China eSIMs for 2026 works through the alternatives. Still deciding between approaches? Local SIM versus eSIM covers the trade-off in detail, and if you have been looking at Airalo alternatives for China, that guide compares routing and coverage directly.