Built for U.S. passport holders who need clear entry checks, payment setup, internet planning, and first-day logistics before China.
U.S. ordinary passport travelers should not treat ordinary China tourism as automatically visa-free. The cleanest short-stay exception to review is usually the official transit-without-visa route, which depends on nationality, port, stay area, and confirmed onward travel to a third country or region.
This is a planning summary, not immigration advice. Recheck the official source before ticketing.
Assuming a China stop is visa-free when it is not a qualifying transit route.
Arriving with only one payment method.
Relying on Google services without a tested network plan.
Start with the route shape, not the word transit. A U.S.-China-U.S. round trip is a different problem from a U.S.-China-Japan route, and a city change can affect the permitted stay area.
U.S. travelers often arrive with Visa or Mastercard but no tested wallet path. That is workable only if there is a second wallet/card path and enough cash for the first ride or meal.
If Google, Gmail, WhatsApp, cloud documents, or company MFA matter, the real decision is roaming, eSIM, local SIM, or employer-approved access, not just which apps are installed.
The market page is the starting point. The planner turns the same assumptions into a saved profile, readiness score, Chinese travel cards, downloadable Arrival Kit, and portable PDF toolkit.