Will my regular SIM card work in China?

Roaming usually works for calls and data, but it can be slow and pricey. Most travelers buy an international eSIM or a local data SIM before or on arrival for cheaper, faster data.

Why can't I open Google, Gmail, WhatsApp, or Instagram?

These services are blocked in mainland China without a workaround. Plan to use local equivalents (WeChat for chat, Amap for maps) and arrange access before you depart if you need them.

What's the easiest way to get data on arrival?

An eSIM that you buy and install at home means you're online the second you land — no kiosk, no passport photocopy. Airport kiosks and convenience stores also sell local SIMs.

Not if you use an international eSIM that routes your traffic outside China — Google, WhatsApp, Gmail and the rest simply work. A mainland SIM gives a Chinese IP and would need a VPN for those apps.

How do I stay in touch with family abroad?

WeChat works inside China and messages internationally. For blocked apps, sort out access before you leave rather than after you arrive, when you may already be offline.

Staying Online in China: eSIM, Local SIM & the Apps That Get Blocked

The single biggest “why is my phone broken?” moment for first-time visitors to China is the Great Firewall. At the airport you’ll find 5G is fast and cheap — but Google, Gmail, WhatsApp, Instagram, Facebook, YouTube, and X/Twitter won’t open without a workaround. The fix is simple if you plan it before you fly, and a headache if you don’t.

Option 1 — International eSIM (recommended)

An eSIM is a downloadable SIM profile. You buy a China data plan from a provider, install it at home over Wi-Fi, and switch it on when you land. You’re online before you’ve left the terminal.

Why it’s the easy choice:

No passport photocopy, no kiosk hunt. Install at home.
Foreign apps keep working — most travel eSIMs route your traffic through Hong Kong, Singapore, or Europe, so Google Maps, WhatsApp, Gmail, and Instagram open normally. No VPN needed.
Dual-SIM friendly — keep your home SIM active for calls while the eSIM handles data.

Popular 2026 providers: Airalo (budget, China Unicom network, HK routing), Holafly (flat-rate unlimited, 24/7 chat, international routing), Nomad (mid-range, good for multi-country Asia trips), plus Maya Mobile, GigSky, and KnowRoaming for business needs. A typical 5–10 day trip needs about 3–5 GB; heavy video calls eat ~1 GB a day.

Before you buy, check the plan says it reaches outside the firewall (look for “HK routing,” “international routing,” or “access Google/WhatsApp”). A cheap plan that gives you a Chinese IP will still block those apps.

Option 2 — Local data SIM

Buy at an airport kiosk or a carrier store (China Mobile, China Unicom, China Telecom, China Broadnet) with your passport — real-name registration is required by law. Costs are low and speeds are excellent, but you get a Chinese IP, which means Google/WhatsApp/Gmail are blocked unless you add a VPN. Best if you’ll mostly use Chinese apps (Alipay, WeChat, Amap) and don’t need foreign services.

Option 3 — Roaming

Your home carrier’s roaming works for calls and data, but it’s usually slower and far more expensive. Keep it as a backup, not your main plan.

Get your phone ready (before departure)

Phone is carrier-unlocked (contract phones often aren’t — unlock it 24–72h ahead).
Phone supports eSIM: iPhone XS or newer, Pixel 3+, Galaxy S20+ and most recent flagships.
Buy and install the eSIM at home on Wi-Fi; leave it off until you land.
Download offline maps (Amap or Baidu) and a translator so you’re never fully stranded.

What to use instead of blocked apps

Maps: Amap (高德) or Baidu Maps — Google Maps is unreliable in China.
Chat: WeChat (works internationally too).
Translation: Pleco (offline Chinese dictionary) or your phone’s built-in translator; Baidu Translate has camera mode.
Email: if Gmail is blocked on a mainland connection, use the eSIM route above or your carrier’s roaming.

Sort connectivity at home, land with data already on, and China’s internet stops being a wall and becomes just… the internet.