Internet speeds, roaming, and connectivity

Connectivity in mainland China is broadly excellent. 5G coverage in tier-1 cities is among the world's best. 4G is universal in cities. Where it gets complicated: the Great Firewall, roaming costs, and the eSIM dual-SIM strategy.

What speeds to expect

• Tier-1 cities, 5G: 100-500 Mbps download, 50-200 Mbps upload. Comparable to or faster than most Western capitals.
• Tier-1 cities, 4G: 30-80 Mbps. Reliable.
• Tier-2 cities, 5G/4G: 50-200 Mbps. Reliable.
• Tier-3 cities and rural: 4G primarily; 20-100 Mbps. Some patchy spots.
• Tibet, remote Xinjiang, mountain areas: variable. Some passes have nothing.

Hotel WiFi: 50-200 Mbps in international-brand hotels, 20-80 in mid-range, 10-30 in budget. The catch: hotel WiFi is part of the GFW.

Roaming on home SIM

For short trips (1-2 weeks), roaming on your home SIM is often the simplest option:

• Pro: routes through your home network's backhaul (overseas), which means Google, Facebook etc work normally without VPN.
• Pro: no setup at the airport.
• Con: roaming charges. Some carriers are reasonable (T-Mobile US, Three UK, Project Fi); others are extortionate.
• Con: some carriers throttle data speeds while roaming.

Check your home carrier's China roaming rates before flying.

Local Chinese SIM

For longer stays or work trips:

• Pro: cheap. ¥80-¥200 per month for unlimited local data.
• Pro: full 5G speeds where available.
• Con: routes through the GFW. Need VPN for Google etc.
• Con: passport required for purchase; KYC takes 30-60 minutes.
• Con: number is Chinese-format; useful in China, less so abroad.

To buy: visit a China Mobile, China Unicom or China Telecom shop. Bring passport. Choose a plan. They issue the SIM and activate within 30-60 minutes.

eSIM dual-SIM strategy

Modern iPhones (since iPhone XS) and most flagship Android phones support dual-SIM via eSIM. Some travellers use this:

• Slot 1: Chinese local eSIM for cheap data.
• Slot 2: Foreign eSIM for international roaming when the GFW is in the way.

You toggle between SIMs depending on what you're doing. Setup is fiddly but works. Useful for long-stay travellers and expats.

Travel SIMs sold abroad

'China travel SIM' brands (Lyca, Three's add-ons, dedicated 'China unblocked' SIMs) sometimes route data via Hong Kong or Singapore. The result: Google, Facebook etc work without VPN. Read the fine print — some are slower than local SIMs and have caps.

For a 1-2 week trip, this is often the most convenient option.

Hotel WiFi

Most international-brand hotels and major Chinese chains have decent WiFi. The standard: - Marriott, Hilton, Hyatt, Accor, IHG: solid WiFi everywhere. - Domestic chains (Jinjiang, Huazhu): solid in cities, variable in tier-3. - Boutiques: variable.

All hotel WiFi is part of the GFW. Use VPN for Google etc.

A few high-end hotels offer separate guest networks with VPN tunnels — uncommon and getting rarer. Don't count on it.

Key apps to install before arrival

• VPN (paid, tested at home).
• Pleco (Chinese-English dictionary).
• Google Translate with offline Chinese language pack.
• Google Maps with offline maps for your itinerary cities.
• Baidu Maps and Amap (work without VPN, more reliable for China addresses).
• WeChat (essential for paying and contacting locals).
• Alipay.
• Didi.
• Trip.com or 12306 for rail.
• Pingone or your-bank app (for transactions abroad).

Edge cases

• Government buildings, military areas: signal jammed.
• Some airports' transit areas: WiFi requires Chinese phone number for SMS verification.
• Tibetan border zones: signal patchy and political.
• Underground / metro: signal works on most lines; full 5G now on Beijing/Shanghai/Guangzhou metros.

The honest summary: connectivity in 2026 mainland China is generally excellent for the use cases the GFW permits, and surprisingly bandwidth-rich for the use cases it doesn't (with VPN). Plan ahead, install before flying, expect occasional VPN failures.