China runs one of the best and cheapest mobile networks on earth, and one of the most particular sets of rules about what loads on it. The difference between a trip where your phone simply works and one where you spend four days fighting for signal is a decision you make at home, in about ten minutes. Here is the version of that decision most travellers get wrong.
The short answer
If you read nothing else: buy a travel eSIM before you fly, leave your home SIM switched on alongside it for calls and SMS, and stop worrying about it. That single move costs $20–35 for a two-week trip, takes ten minutes to install on your own Wi-Fi, keeps your usual apps behaving normally, and keeps your own phone number alive. Everything else on this page is detail.
- China's mobile networks are excellent — 5G in every major city and 4G almost everywhere. Coverage is not the problem.
- A travel eSIM is the default answer for a normal holiday or business trip.
- Home-carrier roaming is the simplest option and the most expensive one — often $70–140 for two weeks.
- A local Chinese SIM gives you the cheapest, fastest data and a Chinese number, but your usual apps will not load on it.
- Whatever you choose, sort it out before you fly. Airport SIM counters are a queue, not a solution.
Two things are true at the same time and people constantly confuse them: China's networks are better than most Western ones, and a handful of well-known apps are not reachable from a mainland connection. Neither fact contradicts the other. Which plan you buy decides which of the two you experience.
The three options, at a glance
There are exactly three sensible ways to get online as a visitor, and they behave very differently. This table is the whole article in miniature.
| Travel eSIM | Home-carrier roaming | Local SIM in China |
|---|
| Can you set it up before flying? | Yes — install in about 10 minutes | Yes — one phone call or app tap | No. Buy on arrival, in person |
| Typical cost for 2 weeks | $20–35 | $70–140 if you pay a daily fee | $14–28 equivalent |
| Your usual apps | Keep working normally | Keep working normally | Most of them will not load |
| Passport registration needed | No | No | Yes — in person, at the counter |
| Keeps your own number | Yes, via dual SIM | Yes | Usually not, unless you have two phones |
| Data speed and allowance | Good, generous | Good, often capped | Best, cheapest per gigabyte |
| Best for | Almost every visitor | Very short trips, some business travel | Long stays, second phone, hotspot |
The phrase "your usual apps" is doing real work in that table. It is the single biggest practical difference between the columns, and it is the reason we recommend the eSIM column to nearly everyone.
Why this choice matters more than it looks
Start with the good news, because it is genuinely good. China has built one of the most complete mobile networks in the world: 5G in Beijing, Shanghai, Guangzhou, Shenzhen, Chengdu, Xi'an and Hangzhou, and 4G reaching essentially the entire populated country, including the mountains around Zhangjiajie and the long desert road out to Dunhuang. Speeds in cities routinely run 50–200 Mbps. Mobile data is cheap. In most of the country you will have a better connection than you do at home — including, frankly, in places where you would not expect it.
The wrinkle is that the same connection is not the same connection everywhere. A plan that connects through a mainland network and a plan that routes your data internationally behave differently, and that difference decides whether your maps, your email and the app you use to message your family behave the way they do at home.
So the real question is not "is there signal" — there always is. It is "which kind of plan did I buy".
- International plans — travel eSIMs and home-carrier roaming — route your traffic outside the mainland. Your usual apps behave as they do at home. You pay more per gigabyte than a local SIM, and you keep your own number.
- A mainland local SIM is registered in China under your passport and runs entirely on the mainland network. It is the cheapest and fastest data you can buy, and it comes with a Chinese number that is genuinely useful for Wi-Fi logins and some bookings. In exchange, the well-known Western apps simply do not load on it.
Which is why the answer for a two-week holiday is so often "both": a travel eSIM for the data your phone actually needs, plus an old handset or a cheap local SIM if you want a Chinese number for Wi-Fi captchas and restaurant queues.
Option 1: a travel eSIM (what we recommend)
A travel eSIM is a data plan you buy from an international provider — Airalo, Nomad, Holafly, Saily, Ubigi, and a dozen others — and install as a QR code on your phone. Nothing arrives in the post. There is no counter, no queue, no paperwork.
How to install one
- Check your phone supports eSIM and is carrier-unlocked. Every iPhone from XS onwards (except most mainland-China models), most recent Samsung Galaxy, Pixel and recent Huawei and Xiaomi flagships do. If yours does not, buy a physical travel SIM instead — same idea, delivered as a plastic card.
- Buy the plan at home. Choose a regional Asia plan or a China-specific one. 10–20 GB over 15 days is $20–35 depending on the provider; unlimited plans for 7 days run roughly $25–40.
- Install it while you are still on your own Wi-Fi. Scan the QR code, add the plan as a second line, and give it a clear name like "China data".
- Leave it switched off until you land. Most providers start the clock at first connection, so installing early costs you nothing.
- On arrival, turn off data roaming on your home line and switch data to the eSIM. Ninety percent of "my eSIM does not work" stories are a phone that is still trying to use the original line for data.
What to look for when you compare providers
- Data amount, not headline price. A 5 GB plan for a two-week trip is tight if you use maps all day. 10 GB is comfortable for navigation, messaging and photos; 20 GB if you post video.
- Whether the plan is data-only or includes a phone number. Most travel eSIMs are data-only, which is fine — you will use WhatsApp, iMessage or WeChat over data. A few include a real number for calls.
- Whether it can share data (hotspot / tethering). If you are travelling as a pair, one 20 GB plan shared between two phones is cheaper than two 10 GB plans. Not every provider allows it.
- Which network it runs on. Plans that use China Unicom or China Mobile generally have the best coverage outside the big cities.
- Customer support hours. You want someone to answer at 2am Beijing time if the plan fails to activate.
A practical tip that saves people real money: install the eSIM and keep your home SIM active as well. On a dual-SIM phone you can run both lines at once, so your own number still receives bank codes and messages while all your data runs through the travel plan. Set the travel plan as the data line, and your home line as the voice and SMS line.
Option 2: roaming with your home carrier
The simplest option is to do nothing and let your own carrier roam. It works, it needs no setup, and your number stays exactly as it is. It is also, for most people, the most expensive column in the table.
- US carriers. Verizon's TravelPass and AT&T's International Day Pass are typically around $10 per day, billed only on days you use it — so a 14-day trip is $140 if you use it every day. T-Mobile includes a slower international allowance on its premium plans, often 5 GB of high-speed data and then reduced speeds, which is usually enough for maps and messages and not much more.
- European carriers. Free EU roaming does not extend to China. Expect a paid add-on or a daily fee, usually €5–15 per day, or a monthly "world" bolt-on of €30–60 that is much better value if you travel often.
- Latin American carriers. Rates vary widely and are often the highest of the three; check before you assume. Some sell a regional Asia add-on that is far cheaper than per-day pricing.
Where roaming genuinely wins: a two or three day stopover, or a business trip where your home number must stay live for calls. Where it loses: every trip longer than a week. There is no scenario in which 14 days of $10-per-day passes beats a $30 eSIM.
Option 3: buying a local SIM in China
This is what residents and long-stay visitors do, and it is the best value on the board. It is also the option with the most friction on arrival, and the one most likely to leave your usual apps unavailable.
Where to buy
- Airport counters in the arrivals hall of Beijing Capital, Beijing Daxing, Shanghai Pudong, Shanghai Hongqiao, Guangzhou Baiyun and Chengdu Tianfu. Open late. Prices are marked up — expect 200–400 RMB ($28–56) for 10–30 GB over 30 days.
- Official carrier stores run by China Mobile, China Unicom or China Telecom, in any city centre. Cheapest, best value, and usually the most helpful staff — but you are doing this during shop hours, in your first day or two, with jet lag.
- Not convenience stores. The old habit of buying a SIM at a 7-Eleven does not apply in China. Registration is done in person, at a counter.
What you need
- Your passport. Chinese SIM cards are real-name registered and the counter will scan it.
- Your entry date and, sometimes, your visa or visa-free entry details — a 240-hour visa-free transit passenger may be sold a shorter-validity tourist SIM.
- The phone itself, so the staff can confirm it works on the network and activate the plan while you wait.
- Ten to twenty minutes. This is not a vending-machine transaction.
A generous tourist package is typically 100–200 RMB ($14–28) for 20–30 GB over 30 days, or a monthly plan with a Chinese number at a similar price. That is three to five times cheaper per gigabyte than any travel eSIM — the trade-off is that your usual apps will not load on a mainland-only connection, and you will have swapped your number.
What two weeks of data actually costs
The same fortnight, five ways, priced honestly:
| Approach | Cost, 2 weeks | What you actually get |
|---|
| Travel eSIM, 10–20 GB / 15 days | $20–35 | Install at home. Usual apps keep working. Keeps your number. |
| Home-carrier daily pass, 14 days | $70–140 | Zero setup. Most expensive route by a wide margin. |
| Local SIM at an airport counter | 200–400 RMB ($28–56) | Convenient, but the highest local price for the fewest gigabytes. |
| Local SIM at a city carrier store | 100–200 RMB ($14–28) | Cheapest data and a Chinese number. Usual apps unavailable. |
| Hotel and cafe Wi-Fi only | Free | Fine for email at night. Not workable for maps and taxis on the move. |
Notice the shape of it: the cheapest option is also the one with the most friction and the least compatibility, and the most convenient option is the most expensive. The eSIM sits deliberately in the middle and wins on the only metric that matters on a holiday — the number of things that go wrong.
Coverage, speed and how much data you need
Two weeks of navigation, messaging, translation and the occasional photo upload is comfortably 8–12 GB. Here is how the data actually disappears:
| What you're doing | Rough data use | Notes |
|---|
| Maps and navigation, all day | 200–400 MB per day | The single biggest consumer. Download offline maps to cut it sharply. |
| Messaging and email | 30–80 MB per day | Text is nearly free; photos add up. |
| Translation app in the background | 50–150 MB per day | Worth budgeting for — you will use it constantly. |
| Photo backup | 500 MB–2 GB per day | Turn iCloud or Google Photos backup off mobile data. |
| Video calls home | 150–400 MB per hour | Video streaming is the one thing that eats a plan. |
| Ride-hailing and tickets | 20–50 MB per day | Trivial. Do not worry about it. |
Coverage in practice: expect full 5G in every city on the standard itinerary, good 4G on the intercity high-speed rail lines, and usable signal even in the mountain areas around
Huangshan and
Guilin. Genuine dead zones are rare, and they are almost always inside a mountain tunnel or a deep cave attraction rather than in a town.
Five things to do before you fly
- Confirm your phone is carrier-unlocked and that eSIM works on it — or order a physical travel SIM if not.
- Buy the plan at home and install it on your own Wi-Fi, naming it clearly as your China data line.
- Download offline maps for every city on your itinerary. It is the single best use of ten minutes before a trip.
- Screenshot your hotel name and address in Chinese characters, plus the eSIM's QR code and activation details, in case you have to reinstall.
- Tell the people who need to reach you that you will be on data, not SMS — WhatsApp, WeChat or iMessage will be how you actually talk.
One more: if you are travelling as a couple or a family, buy one larger plan and use one phone as a hotspot rather than buying four small plans. It is usually half the cost, and it has a useful side effect — one device that everyone checks their passport is not in.
Wi-Fi, hotels and the login trap nobody warns you about
Hotel Wi-Fi in China is fast, free and universal, from international chains down to family guesthouses. It is also frequently behind a portal that asks for a room number and a name, which is simple enough — the front desk will do it for you if the page is in Chinese.
Where people trip up is public Wi-Fi. Airport, mall, metro and cafe networks in China commonly send a verification code by SMS to a Chinese mobile number. If all you have is a travel eSIM and your home SIM, that SMS may never arrive — and you will be standing in an airport unable to get on the free network.
- Hotel Wi-Fi: fine. Get the password or the room-number login at check-in.
- Airport Wi-Fi: often needs a Chinese number. Do not rely on it on arrival — you want your data plan working before you land.
- Cafe and mall Wi-Fi: hit and miss for the same reason.
- The practical fix: your travel eSIM's data is usually faster and always simpler than hunting for a portal. Treat Wi-Fi as a bonus, not the plan.
- The other fix: if a Chinese number would genuinely help you, buy a cheap local SIM as a second line and use it purely for logins and bookings.
This is the single most common connectivity complaint we hear from travellers who set up nothing in advance: they land, the airport Wi-Fi wants a Chinese number, the SIM counter has a forty-person queue and closes in an hour, and they cannot call the driver who is waiting. Ten minutes at home removes the entire scenario.
When something goes wrong
- "The eSIM installed but there is no connection." Check three things in this order: mobile data is set to the eSIM line, roaming is enabled on the eSIM line, and roaming is disabled on your home line. That third one is the culprit more often than the other two combined.
- "It connected, then stopped after a day." You have hit the allowance, or the plan's validity window is shorter than you assumed. Check the provider app for remaining data before assuming a fault.
- "My battery is draining fast." Dual SIM with one line struggling for signal does that. If one line is only for SMS, consider turning it off during the day and checking it at night.
- "A local SIM's data works but nothing loads." That is the expected behaviour of a mainland-only plan, not a fault. Switch the data line back to your travel eSIM.
- "The hotel wants a Chinese phone number." Common for Wi-Fi portals and some restaurant booking systems. Your guide, your hotel desk or a cheap second local SIM all solve it in seconds.
How we handle connectivity on our trips
On a private CHINATOUR.US trip, connectivity stops being a thing you manage. Every guide and driver carries their own phone, their own data plan and their own working knowledge of the city. They make the bookings, they hold the tickets, they call the restaurant, they message you the meeting time for the morning. If your plan dies or your phone decides to be difficult, the person standing next to you has a working one, and the day continues exactly as planned.
We will also tell you plainly which of your apps will work and which will not, before you fly, based on the plan you have chosen — a small, specific answer that saves a surprising amount of holiday stress. Every trip is one booking, one group, only yours, with a private vehicle and a guide who speaks English, and often Spanish or Portuguese. If you would rather not think about SIM cards at all, say so when you write. Start from our sample trips or the destination guides, read how a custom China trip comes together, or simply email us your dates.
Frequently asked
Can I use Google Maps, Gmail, Instagram and WhatsApp in China?
It depends entirely on which kind of plan you buy, not on the phone. If you connect through an international plan — a travel eSIM or your home carrier's roaming — your traffic is routed outside the mainland and your usual apps behave as they do at home. If you connect through a mainland local SIM, those services will not load. That is the practical difference between the two, and it is why we recommend a travel eSIM for normal holiday trips.
Is it better to get an eSIM or a local Chinese SIM card?
For a normal holiday or business trip, an eSIM wins: it is set up at home in ten minutes, it keeps your own phone number working, and your usual apps keep behaving normally. A local Chinese SIM gives you cheaper and faster data plus a Chinese phone number, which is genuinely useful for some Wi-Fi logins and bookings, but you have to buy it in person on arrival and your Western apps will not load on it. Many travellers end up with both.
How much does a tourist eSIM or SIM card for China cost?
A travel eSIM is typically $20–35 for 10–20 GB over 15 days, or $25–40 for a 7-day unlimited plan. A local tourist SIM bought at an airport counter runs 200–400 RMB ($28–56) for 10–30 GB over 30 days; the same package at a city carrier store is 100–200 RMB ($14–28). Home-carrier roaming is the most expensive route, commonly $10 per day, so around $140 for a fortnight of daily use.
Do I need a Chinese phone number to use Wi-Fi and apps in China?
Not for your mobile data — but public Wi-Fi networks at airports, malls and metro stations frequently send their verification code by SMS to a Chinese number, and hotel portals usually want a room number instead. If you want a Chinese number for those logins and for some restaurant booking systems, a cheap local SIM as a second line solves it. Hotel Wi-Fi, which is fast and free, does not require one.
Can I keep my own phone number while using a Chinese data plan?
Yes, on any dual-SIM phone. Install the travel eSIM as a second line, set it as your data line, and leave your home SIM active for calls and SMS — so bank codes, two-factor messages and calls from home still reach you while all your data runs through the China plan. The only case where you lose your number is swapping your physical SIM for a local Chinese one, which is a good argument for carrying an older second phone if you want both.