Internet, eSIM & VPNs: staying connected

Buy a travel eSIM a few days before departure, install it on your unlocked phone, and activate it when you land. Because travel eSIMs route your data through a carrier outside mainland China (usually Hong Kong), the firewall simply doesn't apply to you — WhatsApp, Google Maps, Gmail and Instagram work as if you never left home, with no VPN to babysit. It costs about USD 5–20 for a typical trip's data.

That's the whole answer for most travelers. The rest of this page covers what's blocked, the alternatives (roaming, VPN), and the few things that still need a Chinese phone number. Do your app setup at home on the same logic: Alipay and WeChat Pay, DiDi and 12306 are all easier to register while the open internet is still available.

Mainland China's network filters — the "Great Firewall" — block access to much of the Western internet on any mainland connection (hotel Wi-Fi, Chinese SIM, café network). As of July 2026, the blocked list includes:

• Google, all of it: Search, Maps, Gmail, YouTube, Drive, the Play Store
• Meta, all of it: WhatsApp, Instagram, Facebook, Messenger
• X (Twitter), Reddit, and most international news sites
• Various messaging and work tools depending on the month — assume anything not Chinese is unreliable

What still works: Apple's iMessage and FaceTime, and Apple Maps (which uses Chinese map data locally and is actually good in China). Chinese apps — WeChat, Alipay, DiDi, 12306, Amap — work everywhere, because of course they do; they're the local internet. Your home email provider's own app usually works; Gmail's does not.

The practical consequence: if you land unprepared, you cannot message home on WhatsApp, cannot Google anything, and cannot pull up your hotel in Google Maps. Prepared means an eSIM, roaming, or a VPN — below.

Travel eSIMs — Airalo, Nomad, Holafly and their competitors — sell data packages for China that route through a carrier outside the mainland, typically in Hong Kong. Your traffic exits to the open internet before it's ever filtered, so blocked services work normally. No VPN, no settings, no drama.

• Cost: roughly USD 5–20 for 5–10 GB valid 15–30 days — cheaper than most carriers' roaming.
• Hardware: you need an unlocked, eSIM-capable phone (most iPhones from XS onward and recent Android flagships). Check compatibility on the provider's site before buying.
• Setup: buy at home, scan the QR code to install the eSIM profile, then flip it on when you land at XIY. Installation needs internet — do it before departure, not in the arrivals hall.
• Limitations: data only, no Chinese phone number and usually no voice calls at all — use WhatsApp or FaceTime audio for calls. And your phone's Chinese apps still work normally alongside.

If your phone doesn't support eSIM, the same providers sell physical travel SIMs, or use option B.

Here's the part that surprises people: international roaming also bypasses the firewall. When your phone roams on a Chinese network, your data tunnels back through your home carrier before hitting the internet — so WhatsApp and Google work on a roaming connection exactly as they do at home.

The catch is price and data allowance. Some carriers (particularly on premium plans) include cheap or even free China roaming; others charge rates that would embarrass a casino. Check your carrier's roaming package before you fly — if your plan includes a reasonable China day-pass, this is the zero-setup option: land, turn off airplane mode, done. If the quote is painful, the eSIM in option A will pay for itself on day one. Either way, keep your home SIM active for the trip — it's also your backup receiving channel for bank SMS codes when you set up payments.

Every hotel, café and airport in Xi'an has Wi-Fi, and every one of those networks is behind the firewall. To reach the blocked internet on them, you need a VPN — and the single most important sentence on this page: install and test your VPN before you arrive. VPN provider websites and their app-store pages are themselves blocked in China; landing without one and trying to download one is a famous dead end.

• Choose a reputable paid VPN known to maintain China connectivity (the major names all publish China status pages). Free VPNs are slow, unreliable, and monetize you in ways you don't want.
• Install two. Blocking intensity varies — it tightens around sensitive political dates — and the VPN that worked last month can be throttled next week. A backup app is cheap insurance.
• Legal posture: enforcement targets providers, not tourists; travelers using VPNs for personal use is ubiquitous and, in practice, tolerated. Keep expectations calibrated and usage ordinary.
• Hotel Wi-Fi quirks: login pages sometimes demand a Chinese phone number for an SMS code — the front desk can authenticate you from theirs. Wi-Fi is also where your VPN does the heavy lifting, so an eSIM (option A) plus VPN-on-Wi-Fi is the belt-and-suspenders setup.

Even with a VPN, some things stay awkward — which is what the last section is for.

What still needs a Chinese (+86) number: a handful of local services — some bike-share and food-delivery apps, certain WeChat mini-program registrations, and the occasional Wi-Fi portal. The good news: everything a tourist actually needs works with a foreign number. Alipay, WeChat, DiDi and 12306 all register on your home mobile; attraction booking (like the Terracotta Army) works on passport + foreign number. You can do an entire trip without a +86 number — but if you want one, carrier shops in town sell tourist SIMs against your passport.

Maps: Apple Maps works fine in China. Google Maps technically loads through an eSIM/VPN but its China data is stale — wrong pins, missing metro lines. Better setup: Apple Maps for navigation, plus an offline backup (Maps.me or OsmAnd with the Shaanxi map downloaded). Screenshot the Chinese name and address of your hotel and key sights; the "show your driver" boxes on our attraction pages (e.g. the City Wall) exist precisely for this.

Translation: download the offline Chinese pack in your translation app before departure — Google Translate's offline mode works with zero connection, and its camera mode decodes menus in the Muslim Quarter handsomely. Pleco is the gold-standard dictionary if you'll be attempting Chinese.

Finally: download everything offline that you'll need at the border and on day one — hotel confirmation, onward ticket (your visa or transit exemption depends on showing it), and train bookings. Airport Wi-Fi at arrivals is not the place to discover what's blocked.