Independent China travel · connection guide

Which eSIM or SIM card should tourists use in China?

Choose between home-carrier roaming, a travel eSIM and a mainland SIM based on the number you need, your device, trip length and tolerance for setup.

China now

What it’s actually like in China now

Mobile connectivity is part of a wider app-and-identity system. Set up the layers you need before treating the phone as your only backup.

Data and a mainland phone number solve different problems

Roaming or a travel eSIM can get you online quickly, but many travel eSIMs are data-only. A +86 number can make SMS verification, driver or delivery calls and some local services easier, so decide whether you need both connectivity and a local number.

Apple travel-eSIM guidance

A mainland SIM is tied to your passport

Expect real-name registration with the original passport at an operator service hall. Foreign-passport processing is not available at every small reseller, so a directly operated hall is the safer first stop.

National Immigration Administration

One app may open several services inside it

Taxis, transport codes, tickets and dining tools may run as mini programs inside Alipay or WeChat. Working data is only the first layer: account sign-in, identity checks, permissions and a supported payment method can still matter.

State Council visitor guide
1

The safest default is one primary connection plus one backup.

For a short trip, home roaming or a pre-installed travel eSIM is usually the quickest start. Add a mainland SIM when a +86 number, ordinary calls/SMS or a longer local plan materially helps your trip. Keep your home line available for account verification, but block unintended data use.

Compare your options

Three products, three different jobs

There is no single best option. Prices and packages change by carrier, sales channel, trip length and promotion, so compare the actual plan terms rather than a headline price.

Keep your home line

International roaming

01

Best for: Short trips, immediate connection and receiving messages on your usual number.

Set up: Arrange with your home carrier before departure.

Advantages

  • No SIM swap and usually no new account
  • Your usual phone number remains active
  • Can connect as soon as the aircraft lands

Watch for

  • Daily passes and overage can be expensive
  • Speed, tethering and fair-use limits vary
  • Background data on the wrong line can trigger charges

Fast data setup

Travel eSIM

02

Best for: Unlocked eSIM-capable phones and travellers who mainly need data.

Set up: Buy from a worldwide provider and install before entering mainland China.

Advantages

  • Keep a physical home SIM in place
  • Choose a fixed data amount and validity period
  • Easy to turn off after the trip

Watch for

  • Many plans are data-only with no mainland number or SMS
  • Activation, routing, latency and hotspot rules vary by provider
  • A locked or incompatible phone cannot use it

Get a local number

Mainland physical SIM

03

Best for: Longer stays or travellers who need a +86 number for calls, SMS and local services.

Set up: Apply in person at an operator service hall with your original passport.

Advantages

  • A mainland mobile number and local voice/SMS options
  • Plans can suit heavier local data use
  • Operator staff can activate and test the line

Watch for

  • Passport real-name registration is mandatory
  • Not every small outlet processes foreign passports
  • Mainland network rules apply and cancellation may require a store visit

Important 2026 distinction

Travel eSIM is not the same as mainland carrier eSIM.

A travel eSIM is usually a roaming data profile sold by a worldwide provider. It can be used on a compatible unlocked phone and is often installed before travel.

A mainland carrier eSIMis a local line issued by a Chinese operator. Apple’s current mainland guidance says China Mobile, China Telecom and China Unicom support eSIM on iPhone 17e model A3635 and iPhone Air model A3518. Activation requires a carrier-store visit and ID check. Other iPhone models—including models bought outside mainland China—cannot install a mainland-carrier eSIM profile. Device support outside this Apple guidance is carrier-specific, so confirm directly before relying on it.

Before departure

Prepare while every account still works

Do the downloads, logins and account recovery at home. The arrival hall is the wrong place to discover a carrier lock or a missing password.

  1. 01

    Confirm the phone is unlocked

    Ask the seller or home carrier. On iPhone, Settings → General → About should show “No SIM Restrictions” beside Carrier Lock.

  2. 02

    Check device and band compatibility

    Give the exact model number—not only the model name—to the chosen provider or mainland operator.

  3. 03

    Read the roaming small print

    Confirm mainland China coverage, full-speed allowance, daily reset time, incoming SMS, calls, tethering and what happens after the allowance is used.

  4. 04

    Install a travel eSIM early

    Save its QR code, APN instructions and support contact offline. Follow the provider’s activation timing so the validity period does not start too soon.

  5. 05

    Protect the home line from data charges

    Know how to select a separate data line, disable cellular data switching and control roaming for each SIM.

  6. 06

    Download your offline layer

    Save hotel details in Chinese, booking screenshots, critical map pins and Chinese/English translation packs.

  7. 07

    Keep account recovery workable

    Do not discard the line that receives bank or email verification codes. Store recovery codes somewhere secure and accessible offline.

After arrival

Make the first connection deliberate

If you chose roaming

  1. 1.Turn on the home line and enable data roaming only if your plan requires it.
  2. 2.Wait for the local partner-network welcome message, then restart or select a network manually if data does not connect.
  3. 3.Run one small test, check the carrier usage meter and turn off automatic app updates or cloud photo sync if data is capped.

If you chose a travel eSIM

  1. 1.Turn on the travel line, select it for cellular data and follow the provider’s instruction for Data Roaming.
  2. 2.Turn off cellular data switching so the phone does not quietly fall back to the home line.
  3. 3.Test a map search and message. If it fails, check the selected line, APN, remaining data and supported local network before reinstalling anything.

If you want a mainland SIM

  1. 1.Find a directly operated China Mobile, China Unicom or China Telecom 营业厅 (service hall); call first if practical to confirm foreign-passport service.
  2. 2.Bring the original passport. Tell staff how long you will stay and whether you need voice, SMS, hotspot use or mainly data.
  3. 3.Complete the required real-name identity check, choose the plan and ask staff to activate the line.
  4. 4.Before leaving the counter, record the +86 number and test mobile data, one SMS or call, the operator app and balance enquiry.

Show at the counter

我想办一张短期手机卡,主要用流量。

I’d like a short-term mobile SIM, mainly for data.

Confirm before paying

这个套餐会自动续费吗?离境前需要销户吗?

Does this plan renew automatically? Must I close the account before leaving China?

Common pitfalls

Small settings cause expensive problems

Assuming every eSIM is a Chinese mobile line

Most travel eSIMs are roaming data products. Check whether a phone number, ordinary SMS, voice calls and hotspot use are included.

Waiting until arrival to install the eSIM

Installation can require Wi-Fi, an app login or access to the original email. Install and save recovery details before departure whenever the provider permits.

Leaving both data lines unrestricted

Dual-SIM phones can move data to the home line when the travel line is weak. Set one explicit data line and review per-line roaming switches.

Buying from a counter that cannot process a passport

A reseller or small branch may not handle foreign documents. Use a directly operated service hall and take the original passport.

Forgetting the plan may remain active

Ask whether the plan renews, how to top up and how to close it. NIA guidance says a number no longer used should be cancelled at an operator branch.

Treating public Wi-Fi as a complete backup

Some captive portals require SMS or identity verification, coverage can be patchy, and open Wi-Fi is unsuitable for sensitive account work.

Expecting a connectivity option to guarantee every service

Service availability and routing can differ by network and can change. Follow Chinese law and provider terms; this guide does not promise or advise a way around network restrictions.

Source-linked guidance

Every guide links to official or primary sources so you can verify important details before travel.

Reviewed August 2026

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