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China Unicom is the second largest mobile operator in China, offering some of the most tourist-accessible SIM card and eSIM options. If you need reliable data in Shanghai, Beijing, or Guangzhou, a China Unicom sim card is a solid choice.
In this comprehensive guide, we’ll explore everything you need to know about China Unicom SIM cards, including pricing, coverage, where to buy, and how to stay connected to your favourite apps behind the firewall.
👉 Ready to skip the airport queue? Browse best eSIM plans for China Unicom:
Table of Contents
I. Quick Facts about China Unicom
- Founded year: 2000
- Full company name: China United Network Communications Group Company Limited
- Headquarters: Beijing, China
- Services: Mobile services, landline telephone services, internet, data and cloud services.
- Subscribers: Over 480 million mobile subscribers in 2025.
- Network stores and agents: Over 43,000 retail stores and over 600,000 sales and service agents across China.
II. China Unicom Coverage and Speed
China Unicom is one of the three major mobile operators in China, along with China Mobile and China Telecom. According to the Speedtest Global Index data for March 2024, China Unicom ranks among the top mobile and broadband providers in China in terms of speeds and coverage.
China Unicom Network Coverage
China Unicom’s 4G network covers 99% of towns and villages in China, including all major cities, tourist destinations, and transport corridors. The 5G network is live in 350+ cities, concentrated in urban centers.
China Unicom is also actively deploying its 5G network infrastructure. It operates SA and NSA 5G on several mid-band and mmWave frequencies. Major cities like Beijing, Shanghai, Guangzhou and Shenzhen already enjoy blanket 5G coverage from China Unicom. The network is focusing on improving rural 5G availability going forward.
Coverage by cities:
- Beijing: Strong 4G/5G across all districts including the Great Wall access roads. See our Beijing SIM card guide for area-specific tips.
- Shanghai: Full 5G coverage in Pudong, Jing’an, and Huangpu. Read our Shanghai connectivity guide.
- Guangzhou: Reliable coverage along the Pearl River corridor and Baiyun area. Check our Guangzhou SIM card guide.
For other cities, China Unicom coverage is generally strong in any area with permanent population.
China Unicom Speed Performance
China Unicom delivered reliable download speeds. This was comparable to China Mobile but faster than China Telecom. However, in terms of stability, Unicom is not highly rated, as you can still experience intermittent network signals while streaming video.
III. China Unicom Prepaid SIM Cards Plans & Cost
China Unicom offers prepaid tourist SIM plans which can be found at airports and official stores. For travelers, there are several factors to consider, including data allowance, validity period, and cost. Here are some popular options:
| Plan Name | Data | Calls | Price (RMB / USD) | Features & Notes |
| Mainland Tourist SIM (7 – 10 Days) | 20GB – 35GB | 100 – 150 mins (Domestic) | 85 – 120 RMB (~$12 – $17 USD) | • Purchased at airport kiosks. • Requires passport registration & face scan. • Provides a Chinese phone number. • Subject to Great Firewall. |
| Mainland Tourist SIM (15 – 30 Days) | 40GB – 80GB | 200 mins (Domestic) | 150 – 250 RMB (~$21 – $35 USD) | • Purchased at airport kiosks. • Requires passport registration & face scan. • Provides a Chinese phone number. • Subject to Great Firewall. |
| Local Monthly SIM (Downtown Service Hall) | 30GB – 40GB | Varies by plan | 39 – 59 RMB / month (~$5.5 – $8 USD) | • Only available at official city halls (not airports). • Subscription-based (very cheap data). • Must manually cancel at the counter before leaving China to avoid passport blacklisting. |
Important notes on China Unicom prepaid plans:
- Some plans applies only within the province of purchase, so you should always ask for national data plans.
- Plans may vary by province. Beijing airport plans will differ from Guangzhou airport plans.
- All plans above are for mainland China only. Hong Kong and Macau require separate plans.
IV. Does China Unicom Support eSIM?
China Unicom launched domestic eSIM support in 2023 for select devices and plans within mainland China. However, tourists cannot activate a China Unicom eSIM directly through the carrier. The process requires a Chinese ID card, a Chinese bank account, and in-person verification at a China Unicom store.
For international travelers, the practical option is a third-party China eSIM that runs on China Unicom’s 4G/5G network. These eSIMs are pre-configured for tourist use: no Chinese ID required, no store visit needed, and activation happens online before your flight lands.
China Unicom eSIM vs Physical SIM for Tourists
| Physical SIM Card | Tourist eSIM | |
|---|---|---|
| Purchase location | China Unicom store or airport counter | Activate before departure |
| Registration | Passport scan | None |
| Activation | 15–30 min in-store | 5 min via QR code |
| GFW bypass (Google, WhatsApp) | Blocked by default | Built-in within plans |
| Network | China Unicom 4G/5G | China Unicom 4G/5G |
| Price | ~$15–20 USD / 7 days | $10 – 20 USD / 7 days |
| Device compatibility | All devices with SIM Card tray | eSIM-compatible devices only |
Why Tourists Choose an eSIM Over Airport SIM Card
- No airport queue: Skip the China Unicom counter line at PVG, PEK, or CAN
- Firewall bypass included: ChinaeSIM plans give unrestricted access to Google, WhatsApp, Facebook, Instagram, and YouTube without a separate VPN
- Keep your home number: eSIM runs alongside your existing SIM
- Lower cost: Online eSIM plans are typically 50-70% cheaper than airport counter prices
Ready to skip the queue? ChinaeSIM offers China Unicom eSIM plans with built-in firewall bypass. Same network, full internet access, activated in 5 minutes.
V. Where to Buy a China Unicom SIM Card?
At the airport
China Unicom operates counters in the arrivals halls of most international airports:
- Beijing Capital (PEK) & Daxing (PKX): Counters in Terminal 3 arrivals and Daxing arrivals hall
- Shanghai Pudong (PVG): Counter near luggage claim, Terminal 1 and 2
- Guangzhou Baiyun (CAN): Arrivals hall counter near exit gates
- Shenzhen Bao’an (SZX): Terminal arrivals area
- Hangzhou Xiaoshan (HGH): International arrivals
Remember to bring your passport. Registration is mandatory for all SIM card purchases in China.
Authorized Resellers and Agents
China Unicom has retail stores in every city. Use the store locator on 10010.com or ask your hotel concierge. Stores in tourist districts (e.g., Nanjing Road in Shanghai) tend to have English-speaking staff.
Online Platforms
Several online platforms and travel agencies offer China Unicom SIM cards for purchase and delivery before your trip. These platforms often provide detailed information about data plans and pricing, making it convenient to plan ahead.
VI. How to Activate China Unicom SIM Card
To activate and use a China Unicom SIM card, follow these steps:
- Ensure that your device is unlocked and compatible with China Unicom’s network bands.
- Insert the SIM card into your device.
- Turn on your device and follow the on-screen prompts to activate the SIM card.
- You may need to select a data plan or top up your balance using one of the available top-up methods.
- Once activated, you can start using your China Unicom SIM card for data, voice, and SMS services.
VII. China Unicom Call & SMS Rates
All China Unicom plans already include free incoming calls and texts in China mainland.
Direct International Calling Plans (optional add-on):
| Calling Zone | Free Minutes | Additional Minute Rate (CNY) | Price (USD) |
|---|---|---|---|
| A (HK, USA, Canada, Singapore) | 100 minutes | 0.36 CNY/min | $10 |
| B (Taiwan, Macao, Korea, Malaysia, India, Thailand) | 60 minutes | 0.66 CNY/min | $10 |
| C (Japan, Vietnam, Colombia, Brunei) | 40 minutes | 0.96 CNY/min | $10 |
| D (Australia, France, etc) | 20 minutes | 1.96 CNY/min | $10 |
VIII. Useful USSD Codes for China Unicom SIM Card
China Unicom provides various USSD codes that allow users to manage their SIM cards efficiently. Here are some useful USSD codes:
| Action | USSD Code | Notes |
|---|---|---|
| Check Airtime Balance | Send text “101” to 100101 | Free of charge |
| Check Data Balance | Send text “2082” to 100101 | Free of charge |
| General Balance Check | Send text “ye” to 100102 | Free of charge |
IX. How to Top-Up China Unicom SIM Card
To top up your China Unicom SIM card or eSIM, you can choose from various convenient methods:
Top-Up Methods
- Online: Visit China Unicom’s official website or mobile app to recharge your account using a credit card or online payment method.
- Retail Stores: Purchase a top-up voucher from China Unicom retail stores or authorized resellers and follow the instructions to top up your account.
- ATMs: Some ATMs in China allow you to top up your China Unicom account directly using cash or a bank card.
- Mobile Apps: Use third-party mobile apps like WeChat or Alipay to recharge your China Unicom account seamlessly.
By utilizing these top-up methods, you can ensure that your China Unicom SIM card or eSIM remains active with sufficient credit for your communication needs.
X. FAQs about China Unicom
What is the cheapest China Unicom SIM card for tourists?
Data-only weekly plans start around $6 for 10 GB over 7 days. Plans with calling minutes cost around $8 for 7 days. Airport counter prices may be slightly higher than posted rates due to the SIM card cost itself
What networks and frequencies does China Unicom use?
For 2G, China Unicom uses 900MHz and 1800MHz. For 3G, it uses 900MHz and 2100MHz. For 4G/LTE, it uses 1800MHz, 2100MHz, and 2600MHz (TD-LTE).
Can I use Google and WhatsApp with a China Unicom SIM?
No. A standard China Unicom SIM is subject to the Great Firewall. Google, WhatsApp, Facebook, Instagram, YouTube, and many other foreign services are blocked. You would need a VPN to access your favourite apps.
Do I need to suspend my plan before leaving China?
If you purchased a prepaid tourist plan, it will expire automatically at the end of its validity period. There is nothing to cancel. However, if a store enrolled you in a monthly plan, ask them to confirm it will not auto-renew, or call 10010 before departure to cancel.
Does China Unicom have 5G for tourists?
Yes. If your phone supports 5G, you can access China Unicom’s 5G network in 350+ cities. Median download speeds on 5G reach approximately 230 Mbps. Most tourist SIM plans work on both 4G and 5G.
What happens when my data runs out?
Your speed is typically reduced to 128 kbps rather than cut off entirely. At that speed, messaging works but browsing and maps are slow. To continue at full speed, you need to top up which is difficult for tourists without a Chinese payment method. This is one reason many travelers prefer an eSIM with a generous pre-set data allowance.
Can I buy a China Unicom SIM before arriving in China?
Physical SIM cards require in-person passport registration in China, so you cannot activate one before arrival. However, you can buy a ChinaeSIM online and install it before your flight. It activates when you connect to a Chinese network after landing.
Final Words
Whether opting for a travel SIM card for short-term visits or a local prepaid SIM card for extended stays, China Unicom provides flexible plans to cater to diverse communication needs. With convenient top-up methods, useful USSD codes, and reliable customer support, China Unicom remains a reliable choice for international visitors seeking connectivity in China.
