No Internet in China? SIM Card & eSIM Guide for Foreigners (2026)

Series Tracker: Part 4 of 10

[Part 1] Money & Payments: Mastering Alipay

[Part 2] Network & VPNs: Staying Connected

[Part 3] Mastering China’s Transit Ecosystem

[Part 4] China SIM Card for Foreigners(You are here)

Coming Soon: Navigation & Maps Survival Guide Google Maps

Questions like these show up constantly in China travel forums:

“I dropped by a local phone shop and they said they couldn’t sell me a SIM card because I’m a foreigner.”

“I’ve been reading conflicting advice — is there even a prepaid option, or do I have to sign a monthly contract and cancel before I leave?”

“Watched some vlogs and everyone says eSIM is fine — but then I read you need a local number for the apps. Which is it?”

All three are legitimate concerns, and the conflicting advice out there doesn’t help. The short answer: yes, foreigners can get a SIM card in China, but the process is different from most countries, and picking the wrong option for your trip will cause real headaches.

This guide covers everything from which SIM to get, to what actually happens at the store, to the specific problems that catch people off guard.

Quick Answer: What Should You Do?

For most visitors: buy a China Unicom prepaid SIM at the airport or an official city store, bring your original passport, and expect a face scan as part of the process.

But before you do anything, you need to make one decision — physical SIM or eSIM — because they solve different problems.

Physical SIM vs. eSIM: Which One Is Actually Right for You?

This is where most guides either oversimplify or contradict each other, so let’s be direct.

Both give you data in China. The difference is that a physical SIM from a Chinese carrier gives you a local Chinese phone number, and an international eSIM doesn’t. That distinction matters more than most people realise.

	Physical SIM (China Unicom / Mobile)	International eSIM (Airalo / Holafly / Nomad)
Where to buy	Airport counter or city store	Online, before you arrive
Passport & face scan required	Yes	Usually no
Gets a Chinese phone number	✅ Yes	❌ No
Can receive SMS verification codes	✅ Yes	❌ No
Bypasses Great Firewall	❌ No — need a VPN	✅ Yes — routes outside China
Setup effort	20–30 min in store	Scan a QR code
Cost	¥50–100/month	$5–30 for 1–15GB
Best for	Stays 2+ weeks, WeChat Pay setup (especially for new users from scratch), local app registration	Short visits, data browsing only

The key tradeoff: international eSIMs bypass the Great Firewall without a VPN, which is genuinely useful. But they don’t give you a Chinese number, which means you can’t register WeChat with a local number, can’t use Meituan (food delivery, power banks), and may hit walls with certain booking platforms. For most short-term tourists in 2025–2026, this matters less than it used to — WeChat Pay and Alipay now accept foreign cards, and Didi works without a local number. But if you’re setting up any accounts from scratch, a local number is still the smoother path.

In practice, here’s how most people decide:

Under 2 weeks, mainly maps and browsing → International eSIM. Buy one from Airalo or Nomad before you leave. No queues, no face scan, works the moment you land.
2+ weeks, or you want WeChat Pay / local app access → Physical SIM. Takes 30 minutes at a store but you’ll be glad you did it.
Heading to western China (Tibet, Xinjiang, rural Sichuan) → Physical SIM from China Telecom specifically, which has the strongest coverage out west.

Can foreigners buy SIM cards in China?

Yes — foreigners can legally buy SIM cards in China using a passport. However, you must complete real-name registration and facial verification at an official carrier store. I’ll walk you through exactly how to choose, buy, and set up your SIM — step by step.

Which Carrier? Unicom, Mobile, or Telecom

Three options, and the choice is simpler than it looks.

China Unicom is the standard pick for foreigners with their own phones. It uses GSM/WCDMA/LTE bands that are compatible with most phones purchased outside China, plans are competitively priced, and larger branches are more accustomed to handling foreign passports. For ¥69 you get 10GB of data and 500 minutes of domestic calls valid for 30 days — their 全国流量王 (Nationwide Data King) plan is a solid default.

China Mobile has the best raw coverage — strongest in rural areas and the largest 4G/5G footprint(urban 5G now minimizes 2G fallback for most international phones). The catch is that its legacy 3G infrastructure uses a non-standard band that most international phones don’t support. In 4G/5G coverage areas this doesn’t matter, but in smaller towns your phone can drop to painfully slow 2G. For city-focused travel, it’s a reasonable choice; for anything off the beaten path, be aware of the band issue.

China Telecom has better penetration in western China than either of the other two. If your itinerary includes Tibet, Xinjiang, or remote Sichuan, this is genuinely the better option. For urban travel, there’s no meaningful advantage over Unicom.

One-sentence rule: Staying in cities → China Unicom. Heading west → China Telecom.

buying sim card in china store passport registration

Why China SIM Cards Work Differently

If you’ve bought a prepaid SIM in Southeast Asia or Europe, you’re used to just handing over cash and walking out. China doesn’t work like that.

Since December 2019, every SIM card sold in China must be registered to a verified identity, and that verification includes biometric facial recognition — your live face checked against your passport photo in real time. This applies to everyone, including foreign visitors. The practical consequence: you can’t buy a SIM over the counter at a corner shop. You need to go to an official carrier store or airport counter, and you need to bring your original passport.

There’s also a second thing worth understanding: in China’s app ecosystem, your phone number functions as proof of identity. When WeChat or Alipay asks you to verify with a Chinese number, they’re not just confirming your contact details — they’re using that registered SIM as a form of ID. A foreign number often fails this check, which is why your home SIM won’t unlock local services even if your phone has signal.

The Complete Process: Buying Your SIM in China

Before You Leave Home

Unlock your phone. If you bought your phone on a carrier contract (common in the US, UK, and Australia), it may be locked to that network. Test it with someone else’s SIM before you travel. If it’s locked, call your carrier and ask them to unlock it — most will do it free, especially once your contract has ended.

Check your phone’s band compatibility. Most iPhones from XR onwards and flagship Android phones are broadly compatible with Chinese networks. Midrange or older devices may miss key bands. You can check at GSMArena or frequencycheck.com — search your exact model against China Unicom or China Mobile.

Install a VPN before you arrive. This is non-negotiable if you want to use Google, WhatsApp, Instagram, or Gmail while in China. VPN apps are blocked on the Chinese App Store and Google Play, so you have to install one before you cross the border. Reliable options include ExpressVPN, NordVPN, and Surfshark. Buy the subscription and install the app before you board.

Decide where to buy your SIM:

Airport counter — convenient, English-speaking staff, fast process (many now offer QR code + passport OCR self-service). Plans run 20–30% more than city stores and selection is limited. Fine if you want zero friction on arrival.
Official carrier store in the city — better value, more plan options, more reliable for edge cases. Go to a directly-operated 营业厅 (service hall), not a small franchise outlet. Smaller shops often can’t or won’t process foreign passports.
Pre-order online — some services will deliver a SIM to your hotel or allow remote activation using a passport photo upload. Useful if you want everything sorted before you land.

At the Store: What Actually Happens

Walk in and say: “我要办手机卡” (Wǒ yào bàn shǒujī kǎ) — “I’d like to buy a SIM card.”

Here’s the sequence:

They’ll ask for your passport. Original only — photocopies aren’t accepted. They’ll scan the photo page.
Face scan. You’ll sit in front of a camera or hold your phone up to one. The system compares your live face to your passport photo. Usually takes 10–30 seconds.
Plan selection. Staff will show you options on a screen or laminated card. For tourists, look for short-term prepaid options in the ¥50–100 range covering 10GB+ for 30 days.
Payment. Cash (RMB), WeChat Pay, or Alipay. Credit cards are rarely accepted.
Activation. Takes a few minutes. Don’t leave before confirming it works — see the checklist below.

One thing to know before you go: smaller stores may turn you away. This isn’t universal, but franchise outlets or shops in less-touristy areas sometimes tell foreigners they can’t process foreign passports. They usually can — they just haven’t done it before. Going to a flagship or directly-operated store (the ones with the full carrier branding and no other business mixed in) is the reliable path.

Before You Walk Out: The Checklist

Don’t leave the store without confirming all of this:

[ ] SIM is inserted, phone shows signal
[ ] Mobile data is on in your settings
[ ] You can load a webpage (try baidu.com — avoids GFW issues)
[ ] You can send and receive a test SMS
[ ] You have your Chinese number written down or photographed
[ ] You know how to top up (ask staff to show you the carrier’s app or WeChat mini-program)

The SMS test is the one people skip and then regret. Sixty seconds at the counter saves a lot of frustration later.

FAQ: The Problems You’ll Actually Run Into

easy esim setup china travel stay connected

1. The Face Scan Failed

This happens more often than guides admit. The system compares your live face against your passport photo — if you’re wearing glasses, the lighting is bad, your passport photo is old, or the system just isn’t confident, it fails.

What to do: remove glasses and hats, face the camera straight on, ask to try again in better lighting. If it keeps failing, ask if there’s an alternative manual verification process — some stores can escalate to a supervisor who handles it differently. If one branch fails, try a different branch. And if you’re consistently hitting this wall, an online SIM pre-purchase (where verification uses uploaded photos rather than a live scan) is a legitimate workaround.

2. Not Receiving SMS Verification Codes

Your SIM is active and has signal, but the code from WeChat or your bank never arrives.

Check these in order:

International SMS may be disabled on your plan. Go back to the store or call customer service and ask them to enable SMS reception from foreign numbers.
Prefix issue. Numbers beginning with 170 or 171 are virtual number ranges that some platforms block. Ask for a number in the standard 130–189 range when buying.
Network delay. Wait 2–3 minutes, restart your phone, and request the code again.

The simplest prevention: have the store send you a test SMS before you leave. If it arrives, international reception is working.

3. Signal But No Internet

You have bars, but nothing loads.

Check in this order:

Mobile data off. Settings → Mobile Data → toggle on.
APN not configured. Go to Settings → Mobile Data → APN. Enter: China Unicom = 3gnet, China Mobile = cmnet, China Telecom = ctnet.
You’re hitting the Great Firewall. If Baidu loads but Google doesn’t, your data is working fine. Turn on your VPN.
Band incompatibility. If signal is stuck at 2G in a major city, your phone may not support the carrier’s 4G bands. See the pre-departure checklist above.

4. Which Plan Should You Get?

Plans change frequently (e.g., Unicom 2026: ¥59/15GB+500min/30 days), but these are the general ranges:

Trip Length	What to Look For	Approx. Cost
1–7 days	3–5GB data, no calls	¥30–50
1–4 weeks	10–20GB data + calls	¥50–80
1–3 months	Unlimited (throttled after 20–30GB)	¥80–150/month

Ask specifically for 预付费 (yùfùfèi) prepaid plans — not postpaid contracts. And if you plan to use your phone as a hotspot for a laptop or tablet, confirm the plan includes 热点 (rèdiǎn) tethering, because some tourist plans disable it.

5. Do You Need to Cancel Before Leaving?

No. Prepaid SIMs expire naturally when the plan period ends and no top-up is added. The number gets deactivated and reassigned after 30–90 days of inactivity.

Two things worth noting though: if you’ve linked a WeChat or Alipay account to that number, you’ll lose the ability to recover those accounts by SMS once the number is reassigned. Before you leave China, link a backup email to any accounts you want to keep. And if you plan to return and want the same number, you can top up remotely via the carrier app or WeChat mini-program before it expires.

Can You Just Use International Roaming?

Technically yes. Practically, almost no one should.

Roaming costs from most home carriers are significantly higher than a local SIM — often $10–20 per day for data. More importantly, international roaming on most carriers still routes traffic through Chinese networks, which means the Great Firewall applies anyway. You’d be paying more and still can’t access Google.

The one exception worth knowing: some airport counters sell Hong Kong-based roaming SIMs that technically give you a non-mainland connection, which means they bypass the Great Firewall without a VPN. They’re more expensive than a standard mainland SIM, but the all-in-one convenience (data + no Firewall) makes them a reasonable option for short trips if you want zero configuration on arrival.

Useful Phrases for the Store

Print this or screenshot it. Show it directly to the staff if needed.

Chinese	Pinyin	English
我要办手机卡。	Wǒ yào bàn shǒujī kǎ.	I’d like to buy a SIM card.
需要护照吗？	Xūyào hùzhào ma?	Do you need my passport?
可以帮我激活吗？	Kěyǐ bāng wǒ jīhuó ma?	Can you activate it for me?
人脸识别失败了。	Rén liǎn shíbié shībài le.	The face verification failed.
我收不到验证码。	Wǒ shōu bù dào yànzhèng mǎ.	I’m not receiving the SMS code.
可以帮我测试一下吗？	Kěyǐ bāng wǒ cèshì yīxià ma?	Can we test it first?
我要预付费套餐。	Wǒ yào yùfùfèi tàocān.	I want a prepaid plan.
包含热点功能吗？	Bāohán rèdiǎn gōngnéng ma?	Does it include hotspot?
我的手机号码是多少？	Wǒ de shǒujī hàomǎ shì duōshǎo?	What is my phone number?

Bottom Line

Getting a SIM card in China involves more steps than most countries, but once you know what to expect, it’s straightforward. The things that catch people off guard: needing the original passport (not a copy), the face scan, and the occasional store that says it can’t help — when a different branch a few blocks away can.

If you’re undecided between a physical SIM and an eSIM, use this as a final tiebreaker: do you need to register any Chinese apps from scratch on this trip? If yes, get a physical SIM with a local number. If you already have accounts set up and just need data and internet access, an international eSIM is genuinely the easier option.

The rest of this series covers what comes next once you’re connected: