Phone and apps
Direct answer
Expect QR codes for payment, menus, metro rides, attraction bookings, mini-programs, and sometimes hotel or venue workflows. The safe plan is to prepare the main apps but keep a staffed-counter or screenshot fallback.
Editorial check
This answer stays short so a traveler can act quickly, then points back to the fuller guide and the official checks that may change before departure.
Current wallet, metro, restaurant, attraction, mini-program, and venue rules for the exact city or place.
Action path
A practical answer should leave the traveler with a few moves they can actually make before the trip or at the point of friction.
Prepare payment QR, menu translation, and metro or ticket QR workflows before the first busy day.
Keep passport, booking confirmation, and hotel address screenshots outside the app that might fail.
Use staffed counters or hotel help when a QR flow requires a local-only account or phone number.
Answer hub
Cluster pages help travelers move through related questions without losing the thread.
Related guides
Use these pages when the traveler needs the longer context, product path, or supporting decision.
Related answers
These answers share the same practical intent and help search users move sideways without restarting.
Next move
Read enough to make the decision smaller, then open the checklist, search a specific question, choose a setup tool, or share the page with the person planning with you.
Use the checklist when the question has shifted from research to preparation.
Search by the actual problem: Alipay, eSIM, transit visa, first transfer, vegetarian food, or a city name.
Open recommendations when the task is clear enough for a short list to be useful.