How to Buy a SIM Card in China: Staying Connected
Foreign visitors need a Chinese SIM card for mobile data, ride-hailing, and payments. Here's where to buy one, what documents you need, and which carrier to choose.
How to Buy a SIM Card in China: Staying Connected
Without a Chinese phone number, you cannot use DiDi, cannot register for many apps, and may struggle with mobile payments. A local SIM card is not just convenient β it is practically essential for a smooth trip.
Where to Buy
At the Airport (Easiest)
Major international airports have carrier kiosks in the arrivals hall:
- Beijing Capital / Daxing
- Shanghai Pudong / Hongqiao
- Guangzhou Baiyun
- Shenzhen Bao’an
Bring your passport. Staff usually speak basic English.
At Carrier Stores
China’s three state-owned carriers have stores in every city:
- China Mobile (δΈε½η§»ε¨) β Largest network, best coverage
- China Unicom (δΈε½θι) β Better international roaming deals
- China Telecom (δΈε½η΅δΏ‘) β Strong in southern China
Online (Pre-order)
Some services like Airalo or Nomad offer eSIMs for China. Convenient, but:
- Requires eSIM-compatible phone
- Often routes through Hong Kong, slower than local SIM
- More expensive
What You Need
| Requirement | Details |
|---|---|
| Passport | Mandatory for all SIM purchases (anti-fraud law) |
| Unlocked phone | Your phone must be carrier-unlocked |
| Cash or mobile payment | ~100-200 RMB for starter pack + data |
| Facial recognition | Some stores require a photo at time of purchase |
Recommended Plan for Tourists
Most visitors need:
- 30-day validity
- 20-50 GB data
- Minimal call/SMS
Typical cost: 100-200 RMB ($15-30)
China Mobile’s tourist SIM is the most reliable option for first-time visitors. China Unicom offers slightly better deals if you plan to use international roaming later.
Setting Up
- Insert SIM β Restart your phone
- Activate β Usually automatic; may require a call to carrier
- Install carrier app β China Mobile/Unicom app for balance checking and top-ups
- Register apps β WeChat, Alipay, and DiDi will now accept your Chinese number
> Important: Your Chinese phone number is tied to your passport. The carrier and government can trace usage to your identity. This is normal and applies to all users in China.
Alternative: International Roaming
If you only need basic connectivity:
- Google Fi β Works in China without VPN for some services
- T-Mobile β Free international roaming, but data is throttled
- Local carrier roaming β Expensive; check your provider’s China rates
International roaming avoids the passport registration requirement but provides slower, more restricted access.
The Bottom Line
A Chinese SIM card costs little, takes 10 minutes to set up, and unlocks the full functionality of China’s digital ecosystem. For any trip longer than a few days, it is worth the minor hassle.