Staying online in China without losing your mind
Google, WhatsApp, Instagram and your usual maps don't work on a normal Chinese connection. The fix is simple — but only if you sort it out before you fly. Here's the lazy version.
Before you leave home, do two things: buy a travel eSIM (gives you data the moment you land) and install a VPN (keeps Google, WhatsApp and Instagram working). You cannot reliably install either one once you're in China — so do it now, on your home wifi.
One weird but important rule: turn the VPN off when you pay. Leaving it on is the single most common reason payments fail.
01Why your phone "stops working" in China
China runs its own internet. A lot of the apps you use every day — Google (including Gmail and Google Maps), WhatsApp, Instagram, Facebook, YouTube — don't load on a standard local connection. This surprises almost every first-timer, and trying to fix it after you land is the hard way to do it.
Two tools solve the whole problem: an eSIM for data, and a VPN for reaching the blocked apps. Set up before departure, your phone behaves almost exactly like it does at home.
02The eSIM: your data, sorted before you land
An eSIM is a SIM card that lives in software — no plastic card, no swapping. You buy it online, install it before your flight, and it switches on automatically when you arrive. For most short trips this is the easiest option by a wide margin.
- Buy and install it at home, on stable wifi, a day or two before you fly. Don't activate it until you land (the instructions tell you when).
- Your phone needs to be eSIM-compatible — iPhone XS or newer, and most recent Android phones.
- Many travel eSIMs route your data in a way that keeps the blocked apps working without a separate VPN. Check the eSIM's own description for whether it covers this — it can save you a step.
03The VPN: install it before you fly, not after
A VPN lets your phone reach apps and sites that a local connection blocks. The critical, non-negotiable rule:
A few realities worth knowing so you're not caught off guard:
- It's not always perfectly stable. Connections can drop and reconnect. This is normal, not a sign you did something wrong.
- Have a backup. Many experienced travelers install more than one VPN app before flying, so if one is having a bad day, the other covers it.
- Hotel wifi won't save you. Even on hotel wifi, the blocked apps stay blocked unless your VPN is doing its job.
04The trap nobody warns you about: VPN vs. payments
This is the one that catches people out, and it's worth tattooing on your hand:
So the rhythm is simple: VPN on when you want Google or Instagram; VPN off when you're about to scan a QR code to pay. Toggle it, pay, toggle it back. Once you know this, a huge share of "my payment keeps failing!" panic just disappears.
05What about a physical SIM card?
You can buy a local SIM at the airport or a phone shop with your passport, and it works fine. But for a short trip it's usually more hassle than an eSIM — the shops rarely have English-speaking staff, and you have to physically swap your card. Most first-time visitors find the eSIM route smoother. If you're staying longer, a local SIM can be worth the effort.