Where eSIM wins
eSIM is strongest when setup speed matters and the phone supports digital profiles reliably.
For many travelers, installing before departure is the cleanest way to avoid arrival friction.
Where SIM Card still wins
Physical SIM Card remains more flexible for routers, older phones, and removable fallback scenarios.
It also works well when a traveler wants to move service between devices.
Compatibility decides more trips than marketing language. Check the device first, then choose the format.