Common failure modes
- Buying a plan after landing, when you already need data to navigate.
- Assuming every phone supports eSIM.
- Not saving activation steps offline before takeoff.
Mobile data guide
Will my phone work when I land in China?
Short answer: arrange data before departure. Arrival is harder if maps, translation, payment, and ride hailing are offline.
Quick mobile data decision.
Use this only if you want a simple recommendation between eSIM, roaming, or a physical SIM fallback.
Mobile data decision helpereSIM, roaming, or physical SIM backup
Needs setup