Tourists can get online in mainland China through home-carrier roaming, a travel eSIM, a local SIM or Wi-Fi. The best choice depends on whether the phone is unlocked, whether you need a mainland Chinese number, which cities you will visit and what the provider’s current routing and support terms say.
China controls internet access, and government travel advice warns that many foreign websites and apps may be unavailable. No SIM, eSIM or roaming plan should be described as guaranteed access to every service. Choose a legal connection, prepare offline fallbacks and protect sensitive data.
Compare the four connection types
| Option | Main advantage | Main limitation | Check before buying |
|---|---|---|---|
| Home-carrier roaming | Little setup and keeps the home number | Can be expensive; access and fair-use terms vary | Mainland coverage, daily price, data cap and routing |
| Travel eSIM | Can be installed before departure | Data-only plans do not provide a +86 number; phone must support eSIM | Device lock, activation date, coverage and support |
| Local mainland SIM | Local data and usually a +86 number | Passport registration; mainland access controls apply | Operator shop, plan term, number expiry and data allowance |
| Hotel or public Wi-Fi | No mobile-plan data use | Login requirements, variable quality and greater privacy risk | Registration method, security and whether mobile data is a safer option |
Do not compare products only by the largest data number. A short trip may need reliability and support more than an “unlimited” label with unclear fair-use limits.
Home roaming and travel eSIMs
Home-carrier roaming is the simplest option for a very short trip. Ask the carrier whether mainland China is included, what time zone defines a “day,” whether hotspot use is allowed and what happens after the high-speed allowance is used. Keep the support number available offline.
A travel eSIM can be installed without replacing the physical home SIM, but it is not universal. The phone must support eSIM and be carrier-unlocked. Plans differ in activation rules, local partners, routing, phone-number support and refund terms.
The China eSIM versus SIM card guide helps decide between those two products. Whatever you choose, install according to the provider’s official instructions and do not delete an eSIM profile until you understand whether it can be downloaded again.
Do not rely on a seller’s broad claim that every foreign app will work. Ask for current written details for mainland China and your travel dates. Service conditions can change after an article is published.
A local SIM and the value of a +86 number
China’s official guide says foreigners can take a passport or Foreign Permanent Resident ID Card to service offices of China Telecom, China Mobile or China Unicom to apply for a SIM card and mobile service. Plans and data allowances differ by operator.
A local number can help with services that send mainland SMS codes, but not every app accepts every number, and not every tourist needs one. The Chinese phone number guide explains when a +86 number materially helps and what to ask at the operator counter.
Before leaving the shop, confirm:
- the number and plan name;
- the included data and plan end date;
- whether hotspot use is allowed;
- the method for checking balance;
- whether automatic renewal is enabled;
- how to cancel or let the service expire;
- that mobile data works on your phone.
Do not hand a passport to an unofficial street seller. Use an identified operator service counter and retain the receipt or service record.
Wi-Fi is a backup, not a complete plan
Hotel, airport and café Wi-Fi can require a room number, SMS code, passport check or staff assistance. Availability varies, and some public networks may not be usable without a local number. Beijing airport service counters are officially described as helping foreign arrivals with SIM cards and airport Wi-Fi, but that does not mean every airport has the same process.
Public Wi-Fi also carries security risk. US travel advice says not to expect privacy on networks in China and advises against connecting to public Wi-Fi. If you must use a shared network:
- confirm the network name with staff;
- avoid an open network with a look-alike name;
- do not perform sensitive banking or account recovery;
- keep the operating system updated;
- turn off automatic network joining;
- forget the network after use.
What internet controls mean for trip planning
UK travel advice says Google, Facebook, YouTube and X are permanently blocked and that other sites may be blocked at times. Australian advice says visitors may be unable to access banking, popular apps, calls or internet messages, and warns that bypass services may be illegal.
Plan around that uncertainty:
- Download tickets, hotel addresses and insurance details.
- Agree on a permitted backup contact channel.
- Save account-recovery codes securely.
- Install critical app and operating-system updates before departure.
- Ask an employer about approved devices and connectivity for work data.
- Follow Chinese law and current provider terms.
This guide does not recommend a VPN or give instructions for evading network restrictions. A connection that worked for someone else last month is not evidence for your dates, device or legal situation.
Data and device security
Carry only the sensitive information needed for the trip. Use a screen lock, device encryption and current software. Back up the phone before departure, and keep passport copies and recovery codes in a protected location.
For business travel, follow the company’s device and data policy. Some organisations provide a managed travel device or approved connection. Do not improvise by moving confidential files to a personal account.
FAQ
Can a foreign tourist buy a local SIM in China?
Yes. China’s official guide says foreigners can apply at operator service offices using a passport or accepted residence document. Plans and availability vary, so use an official counter.
Does a local SIM give access to every foreign website?
No. A local SIM uses mainland networks and is subject to local internet controls.
Is a travel eSIM better than roaming?
It depends on the device, trip length, coverage, number needs and support terms. Neither should be treated as a guarantee of access to a particular app.
Is hotel Wi-Fi safe for banking?
Avoid sensitive transactions on an unknown or open network. Government travel advice warns about privacy and cyber-security risks on public networks.
Do I need a Chinese phone number?
Not always. It is useful when a service requires a +86 SMS code, but payment, transport and booking options can sometimes work with foreign numbers or offline methods. Decide from the actual itinerary.
Sources and review date
- State Council guide to working and living in China
- UK government: China internet access
- Smartraveller China advice
- US State Department China travel advisory
- Beijing airport service counters for foreign travellers
Telecom, access and security guidance was checked on 30 August 2026. Confirm current operator, carrier and official travel advice before purchase or departure.
Image credits
- Featured image: Shanghai at night from the Bund. Image by David Zhang, via Wikimedia Commons. — CC BY-SA 2.0.
- First inline image: A travel-data SIM package for mainland China. Image by Tang HungTze Fat, via Wikimedia Commons. — CC0.
- Second inline image: China Mobile SIM card packaging. Image by John McMaster, via Wikimedia Commons. — CC BY 4.0.
