A layover in China can range from a few hours inside the terminal to an overnight stop or short city visit. Airport Wi-Fi may be useful, but travellers who need dependable messaging, booking access, or transport coordination may prefer to prepare mobile data in advance.
Match the plan to the transit type
For an airside connection, confirm whether you actually need mobile service or whether downloaded boarding passes and airport Wi-Fi are enough. For an overnight hotel, airport transfer, or city visit, an eSIM can provide continuity when leaving the terminal. Save onward flight and accommodation details offline.
How much data should you prepare?
A short transit generally requires only a small allowance for messages, maps, and booking checks. Avoid buying a large plan unless the layover includes extensive work, streaming, or multiple devices. Check the validity period so that it covers the correct arrival date.
Device and installation checklist
- Confirm that your phone supports eSIM.
- Confirm that the device is carrier-unlocked.
- Install the eSIM while you still have stable Wi-Fi.
- Keep the QR code and order details available.
Actual service and app access can vary with plan routing, device settings, local network conditions, and applicable requirements. If setup fails, do not delete the installed eSIM or reset network settings before contacting support.
Purchase options
Final preparation
Install before departure and keep the QR code accessible. Do not rely on receiving installation details after landing if you may not yet have a working connection.