What's the difference between a country plan and a regional plan?

Each uses a network chosen for that specific country. Best for trips to a single country, or where you'll spend most of your time in one.

Cover multiple countries within a region on a single eSIM — as you cross borders your phone connects to whichever local network the regional plan works with. The trade-off: that network isn't as deliberately chosen as a country plan, though it's almost always perfectly good. Best for multi-country trips and short hops.

Each regional plan has its own country list, and two plans for the same region can differ, so check the country list on the plan page before you buy. Regional plans are also where the largest sizes live: up to 120GB, against 100GB for a single country.

One country: a country plan. Several in one region: a regional plan if your destinations are covered. A mix of regions (say Japan and Spain): separate plans for each.