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In mainland China, many international services may be restricted or work inconsistently, including Google products and several messaging and social-media platforms. The list and level of access change, so prepare local services and offline content.
Connection options
| Option | Advantages | Limitations |
|---|---|---|
| International eSIM or roaming | May route traffic outside mainland China | Outcome, coverage and tethering depend on the provider; often data-only |
| Local SIM | Local number and stable access to Chinese services | Registration required; local network restrictions apply |
| Roaming from your usual operator | Keeps the number and SMS service | Cost and allowance vary |
| Hotel or public WiFi | Useful as a supplement | May require a local number; variable quality and local restrictions |
Do not assume that an eSIM bypasses restrictions. Ask the provider in writing how traffic is routed, which services are supported and what happens if conditions change. Also review fair-use and tethering policies.
Restricted services and regulation
Virtual private networks and other access methods are regulated. Availability and performance are volatile, and a specific recommendation can become obsolete without notice. Consult applicable law, official travel advice and service terms. For work, ask your employer for an authorised solution and support before departure.
Install any legitimate tool you need before travelling and obtain it from an official source. Do not download files from unknown sites or disable phone security.
Before departure
Download and store offline:
- the hotel and destination addresses in Chinese characters;
- maps and a translation package;
- tickets, bookings, insurance and emergency contacts;
- recovery codes and alternative authentication methods;
- essential work documents, where access is authorised.
Set up Alipay, WeChat and transport apps before travelling. Check how to receive SMS on your usual number without enabling unwanted data roaming.
Installing an eSIM
- Confirm that the phone is unlocked and compatible.
- Check when the plan's validity begins.
- Save the QR code and instructions outside email.
- Install the line on WiFi if instructed.
- On arrival, select it for data and enable its roaming only when required.
- Keep data disabled on the usual line if your tariff does not include it.
Choosing a data allowance
Consumption depends more on use than destination. Maps and messages use little compared with video, photo backups and video calls. Review your normal use and add a margin. Check whether an “unlimited” plan reduces speed after a threshold.
WiFi and security
Hotel, airport and station WiFi may require verification by SMS or document. Do not use it as your only connection. On shared networks, avoid sensitive transactions and follow your organisation's security measures.
Checklist
- ☐ Current restrictions reviewed in official sources
- ☐ Plan, traffic routing, limits and tethering confirmed
- ☐ Apps and offline content prepared
- ☐ QR code, support details and recovery codes saved
- ☐ SMS and roaming on the usual line configured
- ☐ Emergency numbers saved: 110 for police, 120 for ambulance and 119 for fire