Is an eSIM cheaper than roaming with my home provider for a Hokkaido trip?

In most cases, yes. International roaming from home providers often charges high per‑MB or daily rates that add up quickly when you use maps, messaging, and social apps regularly. A prepaid Japan eSIM gives you a fixed amount of data for a clear upfront price, so you know exactly what you’re spending. This is similar to how a prepaid eSIM can dramatically reduce roaming costs in other destinations like Greece, where travelers typically save a significant amount compared to using their home carrier’s roaming packages.