In China, whether LINE and Google work depends on how you connect—not only that you arrived. A China eSIM with international routing (plan-dependent) often lets common overseas apps work without a separate VPN.

What usually breaks on local China networks

Local China SIMs / many domestic networks block or limit Google services and some overseas social apps. Messaging that relies on those routes fails until you change connectivity.

What an international-routing China eSIM can help

Plans marketed for travelers that egress via international paths often keep LINE, Google, and similar apps usable. Always read the product page—coverage and app behavior vary by SKU.

VPN vs eSIM vs roaming

  • Travel eSIM (intl route) — simplest if it matches your app needs
  • VPN — may still be needed on some local networks; rules and reliability vary
  • Home-carrier roaming — convenient but often expensive

Decide your app must-haves (LINE, Maps, banking), then pick connectivity that supports them before you fly.