best eSIM for China

You land at Pudong at 11pm, you need a map, a ride-hailing app, and a message home saying you made it — and this is exactly the moment an eSIM for China earns its keep. Here's the complete, current picture: how it works, what it actually gets you, the one mistake that catches almost everyone, and how it fits alongside getting a proper local number once you're settled. What an eSIM actually is, in...