Internet in China: the eSIM answer to the Great Firewall
Verified September 2026: blocked services list re-checked; roaming behavior field-tested on China Unicom partner networks.
Here’s the thing almost every guide buries: you don’t need a VPN for China. You need the right eSIM.
The one-paragraph answer
A travel eSIM that roams into Chinese networks (from Airalo, Holafly, Nomad, Saily, etc.) connects you via international roaming — and roaming traffic exits China before reaching the internet. Your Google, WhatsApp, Instagram, Gmail and Google Maps work exactly as at home, no VPN, nothing to configure, and it’s 100% legal. A China-local SIM, by contrast, puts you behind the Great Firewall with everyone else.
Buy the eSIM before you fly, install it while on home Wi-Fi, and activate on landing. This is the single highest-leverage 10 minutes of your trip prep.
What’s actually blocked
On a Chinese network (local SIM/hotel Wi-Fi), blocked or broken: Google (search, Maps, Gmail, Drive), YouTube, WhatsApp, Instagram, Facebook, TikTok, X/Twitter, Telegram, most Western news sites. Work fine: Apple services (iMessage, FaceTime audio, App Store), Spotify (mostly), your bank’s app, and every Chinese app.
Note: Apple Maps works in China (it uses local map data) — it’s the exception among Western map apps, and it’s decent. Google Maps shows your location but can’t route. Use AMap for real navigation.
What about VPNs?
Personal VPN use by foreign visitors sits in a legal grey zone that is politely tolerated but not guaranteed, and we won’t recommend specific providers. Practically: VPNs are unreliable (connections get throttled or dropped), installing one after arrival is hard (app stores serve Chinese versions; VPN provider sites are blocked), and if your roaming eSIM covers your needs, you have no reason to bother. Corporate VPNs for work are a different, legal thing.
Choosing an eSIM
- Coverage type matters more than brand. The listing must say roaming into mainland China. “Hong Kong eSIM” ≠ mainland coverage.
- Data amount: navigation + maps + messaging burns ~1–2 GB/week. Heavy hotspot/video use: get 20 GB+ or unlimited.
- Voice/SMS not included on most travel eSIMs — fine, since your home SIM stays active for bank SMS and you can receive calls on it (check roaming fees for receiving SMS is usually free).
- Keep your home SIM enabled for 2FA codes from your bank.
Traps
- Installing the eSIM after arrival. Some activation flows need uncensored app stores. Do it at home.
- Hotel Wi-Fi is censored even if your eSIM works. Your phone will prefer Wi-Fi — turn auto-join off if you need Google services.
- Downloading apps at the last minute: Chinese App Store accounts and region-locked downloads bite people. Preload everything on home Wi-Fi.
- Public VPN “free Wi-Fi” claims: ignore them.