Does WhatsApp work in China?

Not on Chinese Wi-Fi or local Chinese SIMs, because WhatsApp is blocked by the Great Firewall. However, a roaming travel eSIM routes your traffic outside the firewall, so WhatsApp, Google, Instagram and other blocked services work normally.

Why does a roaming eSIM bypass the Great Firewall?

Roaming traffic is tunneled back through the eSIM's home carrier outside mainland China before reaching the open internet. Because your connection exits in another country, Chinese filtering never sees your requests. It is the same reason hotel Wi-Fi in international chains sometimes has open access.

Do I still need a VPN in China if I have a roaming eSIM?

The eSIM covers your phone's mobile data. You may still want a VPN for hotel and cafe Wi-Fi, which is filtered. Install your VPN app and config before arriving, because VPN websites and app-store pages for VPNs are blocked inside China.

Can I install an eSIM after arriving in China?

Do not count on it. Many eSIM provider websites and app stores are partially blocked, and you need internet access to download the eSIM profile. Always install your eSIM on Wi-Fi before you board your flight.

Is using an eSIM or VPN legal for tourists in China?

Tourists using roaming eSIMs and VPNs is widespread and tolerated in practice; enforcement targets domestic providers of unauthorized VPN services, not foreign visitors checking Gmail. Millions of business travelers do this daily. As always, respect local laws and exercise judgment.

Will my iPhone's eSIM work in China?

Yes. Foreign eSIM-capable iPhones work normally with travel eSIMs in mainland China. Note that most iPhones sold in mainland China lack eSIM entirely; only the iPhone Air and iPhone 17e support it there, and even those cannot install foreign travel eSIMs while physically inside mainland China. None of this affects a phone you bought elsewhere.

China Internet Guide 2026: eSIM, VPN and the Great Firewall

China's internet is a parallel universe: no Google, no WhatsApp, no Instagram, no YouTube, no Gmail. For travelers, the single most important piece of trip preparation is deciding how you will stay connected to the open internet, because once you land it is too late to download the tools.

Roaming eSIMs bypass the firewall

The Great Firewall filters traffic at China's internet borders. But when you roam, whether on a foreign SIM or a travel eSIM, your data is tunneled back to the carrier's home network outside mainland China before it reaches the internet.

The practical result is that with a roaming eSIM, the blocked internet just works. Google Maps, WhatsApp, Gmail, Instagram and YouTube all load with no VPN app, no configuration and no cat-and-mouse with protocol blocking.

A China eSIM from nadanada does exactly this, with no account, no ID and no email required. You can pay with Bitcoin or Monero, which matters to travelers who prefer not to leave a payment trail for connectivity tools.

Where you still need a VPN

A roaming eSIM only covers mobile data. Two gaps remain:

Hotel, cafe and airport Wi-Fi is filtered like any Chinese connection. If you join Wi-Fi to save data, blocked sites stop working again unless you have a VPN.
Laptops and tablets tethered through your phone are covered, but a laptop on hotel Wi-Fi is not.

The belt-and-braces setup for China:

Roaming eSIM for your phone's data (primary, always works)
VPN installed and configured before arrival for Wi-Fi moments

For the VPN leg, a pay-per-use VPN like nadanada's is well suited: no subscription to forget about, no account, and WireGuard configs you can load before departure. Test it at home, because VPN provider websites are blocked inside China and setup after landing is painful or impossible.

What is blocked (2026 edition)

Category	Blocked services
Messaging	WhatsApp, Telegram, Signal, Facebook Messenger, LINE
Google	Search, Gmail, Maps, YouTube, Drive, Play Store
Social	Instagram, Facebook, X/Twitter, Reddit, TikTok (international)
Media	Most Western news sites, Wikipedia (partial), Medium
Work tools	Slack, Dropbox, some GitHub endpoints (intermittent)

Apple's iMessage and FaceTime work. Microsoft services (Outlook, Teams, Bing) generally work. Chinese apps like WeChat, Alipay and Didi always work, and you will need them: China runs on QR payments, and foreign cards are accepted at few places outside luxury hotels.

Before you fly: the China checklist

Install your travel eSIM on home Wi-Fi. Validity starts on first connection in China.
Install and test your VPN. Download the WireGuard config, connect once, confirm it works.
Download offline maps for your arrival city (Google Maps offline or Maps.me; note that Google Maps' China street data has an offset issue, while Apple Maps is accurate there).
Set up WeChat and Alipay with your card linked before departure; verification can require SMS to your home number, which is easier at home.
Save your hotel's address in Chinese characters for taxi drivers.

Hong Kong and Macau

The firewall stops at the border. Hong Kong and Macau have open internet, and local eSIMs there need no workarounds. If your trip includes both, nadanada's China plan and Hong Kong plan can be topped up independently, or use a regional plan covering both.