Getting connected in China is more complex than in most countries. The Great Firewall, the SIM registration requirements, and the network coverage patterns mean that the choice of phone plan has more impact on your China trip than in almost any other destination.
This guide compares every realistic option for foreign tourists in 2026: buying a local tourist SIM, getting an eSIM before departure, using international roaming, and relying on hotel Wi-Fi and VPN.
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Open Table of contents
The 4 Main Options
| Option | Cost | Setup | Speeds | Firewall? | Best for |
|---|---|---|---|---|---|
| China Unicom Tourist SIM | ¥50–200 | Buy on arrival | Excellent | Yes (VPN needed) | Most travellers |
| eSIM (foreign provider) | $15–60 | Before departure | Good | Sometimes bypassed | Tech-comfortable, short stays |
| International Roaming | $10–15/day | Before departure | Moderate | Sometimes bypassed | Business travellers, short stays |
| Hotel Wi-Fi + VPN | Free/cheap | Varies | Variable | Depends on VPN | Very budget travellers |
Option 1: China Unicom Tourist SIM (Recommended for Most)
What It Is
China Unicom and China Mobile offer tourist SIM cards specifically designed for foreign visitors. These are sold at:
- Beijing Capital Airport, Beijing Daxing Airport
- Shanghai Pudong Airport, Shanghai Hongqiao Airport
- Guangzhou Baiyun Airport
- Other major international airports and some train stations
Registration Requirements (Important)
Since 2023, all SIM cards in China — including tourist SIMs — require real-name registration with a passport. When you buy the SIM at the airport counter, you hand over your passport, the agent registers it to your name, and you receive the SIM.
This is different from before 2023 when tourist SIMs could be purchased anonymously. Now registration is required, but the process at airport counters is handled by the counter staff — you don’t need to do anything yourself.
Plans and Pricing
China Unicom’s tourist SIM options (approximate 2026 prices):
| Plan | Data | Duration | Voice calls | Price |
|---|---|---|---|---|
| Basic | 10GB | 30 days | Limited | ¥50 |
| Standard | 30GB | 30 days | Included | ¥100 |
| Premium | 100GB | 30 days | Included | ¥150 |
| Long stay | 100GB | 90 days | Included | ¥200 |
Prices change; verify at the counter.
Network: 5G and 4G LTE coverage. China Unicom’s network is particularly strong in eastern and central China; slightly weaker in very remote western areas.
Note: These SIMs use Chinese phone numbers, not your home country number. Apps that require Chinese phone number verification (DiDi, Meituan food delivery) will work. International apps (WhatsApp, etc.) require a VPN.
The Firewall Issue
A Chinese SIM gives you access to Chinese internet at excellent speeds. To access Google, YouTube, Instagram, WhatsApp, and other blocked services, you need a VPN (virtual private network). Critical: download and test your VPN app before entering China — VPN websites are blocked within China.
Reliable VPNs for China (download before departure): ExpressVPN, NordVPN, Surfshark. Full VPN guide here.
Option 2: eSIM from Foreign Providers
What eSIMs Offer
eSIM (embedded SIM) technology allows you to download a SIM profile onto your phone without a physical card. Several foreign eSIM providers now sell China data plans:
Popular providers:
- Airalo (China data eSIM, 1–30 days, various data sizes)
- Holafly (unlimited data eSIM for China)
- Truphone, BNESIM, and others
Key advantage: Setup before departure — no airport counter queue. Useful if arriving at an airport without good tourist SIM access.
The firewall situation with eSIMs: Some foreign eSIM providers route Chinese data through servers in Hong Kong or Singapore, which may bypass the Great Firewall for many (not all) blocked services. This is not guaranteed and can change. Check recent user reports for the specific eSIM provider before purchasing.
Speeds: Generally 4G; some providers 5G. Slightly slower than a local Chinese carrier SIM in practice.
Cost: $15–60 for 30 days depending on data allowance.
When to Use eSIM
- You have an eSIM-compatible phone (iPhone XS or later, many Android flagships)
- Short trip (7–14 days) where the price is manageable
- You want to potentially avoid the Firewall for some services
- Arriving at a smaller airport without dedicated tourist SIM counters
Option 3: International Roaming
Overview
All major carriers (Verizon, AT&T, T-Mobile, O2, EE, Optus, Telstra, etc.) offer international roaming in China. Cost typically $10–15/day for a data day pass.
The Key Consideration: Firewall
T-Mobile (US): T-Mobile’s international roaming in China routes through T-Mobile’s US infrastructure, which means the Great Firewall often doesn’t apply — you get access to Google, Instagram, etc. directly. Data speeds are slower (usually throttled to 128kbps–1Mbps on roaming), but you have access to US internet.
AT&T, Verizon (US): Standard roaming that passes through Chinese carriers — the Firewall applies.
Google Fi: Explicitly designed for international use. Works well in China with access to Google services bypassing some Firewall restrictions.
Three UK’s Go Roam: Data in China included in some plans at local speeds. Firewall applies.
Telstra/Optus (AU): Standard international roaming with Firewall.
When Roaming Makes Sense
- Business travellers on expense accounts
- Very short trips (1–3 days) where buying a tourist SIM isn’t efficient
- T-Mobile users who specifically need unrestricted US internet access
Option 4: Hotel Wi-Fi + VPN Only
When This Works
- You’re staying in a major international hotel (which often has good Wi-Fi)
- You have a reliable VPN and don’t need constant mobile data
- You’re in urban areas with good café Wi-Fi
The Risks
- Chinese public Wi-Fi (coffee shops, metro) is often slow and unreliable
- Hotel Wi-Fi is sometimes speed-restricted
- VPN performance varies — on congested VPN servers, speeds drop significantly
- Navigation apps (Amap/Google Maps) and payments (Alipay) work fine without cellular; some apps perform better with cellular
Verdict: Not recommended as a primary connection for independent travellers who need navigation and real-time information.
Coverage in China: What to Expect
Major cities (Beijing, Shanghai, Guangzhou, Chengdu, etc.): 5G coverage in all central areas; excellent 4G throughout.
High-speed trains: 4G coverage on most HSR lines, with gaps in some tunnels. Streaming at 4G is reliable for most of the journey.
Tourist sites: Usually well covered (popular hiking areas, scenic spots) — telecom companies prioritize tourist zones.
Remote areas (Tibet, western Qinghai, central Xinjiang desert, Gansu highlands): 4G exists in towns; coverage can be absent or 2G-only in very remote areas. Satellite communication or offline maps are advisable for remote trekking.
Underground metro: Coverage varies by city. Shanghai has excellent metro coverage; smaller cities less so.
Which SIM to Buy: Decision Guide
Are you traveling for less than 2 weeks and already have a good VPN? → eSIM from Airalo or Holafly — set up before departure, convenient.
Are you traveling for 2+ weeks, want the fastest data, and can set up a VPN before departure? → China Unicom tourist SIM from the airport — buy at arrival terminal.
Are you a T-Mobile customer in the US who needs unrestricted internet access for work? → T-Mobile international roaming — slower but bypasses Firewall.
Do you want the least hassle and have iPhone? → eSIM setup at home (remove complexity of airport SIM purchase).
Practical Tips
Dual SIM phones: Many modern phones support two SIM slots or eSIM + physical SIM. Use your home country SIM in eSIM and add a local Chinese SIM in the physical slot — both active simultaneously.
SIM storage: Keep your home country SIM safe during the trip. Put it in a card wallet, not loose in your bag.
Recharge: China Unicom tourist SIMs can be recharged online (via the China Unicom app, which requires some Chinese language navigation) or at convenience stores.
Phone compatibility: China uses 4G LTE Band 1 (2100 MHz) and Band 3 (1800 MHz) most extensively. Modern phones from all major manufacturers are compatible. Old or regional phones may have band compatibility issues.
Also see: China VPN Guide | China Apps Internet Guide | China eSIM Roaming Guide