Question 1

I'm visiting several countries. Do I need an eSIM for each one?

Accepted Answer

Often no. Regional plans cover dozens of countries on one eSIM, and for most multi-stop trips one regional plan is cheaper and less hassle than switching eSIMs at every border. The planner compares both options for your exact route.

Question 2

What if I run out of data mid-trip?

Accepted Answer

You top up from your account in about a minute, no new QR code, no store visit. That's why picking a slightly smaller plan and topping up later is a fine strategy if you're unsure.

Question 3

When should I buy, before or during the trip?

Accepted Answer

Before. Install the eSIM on hotel Wi-Fi at home or at the airport, and it activates when you land and it connects to a local network. Validity starts at activation, not at purchase.

Question 4

How accurate is the data estimate?

Accepted Answer

It's based on typical travel use: maps, messaging, social feeds and calls home, with a 25% buffer on top. Heavy streaming or daily hotspot work pushes you to the next tier, which is what the heavy-use profile is for.

eSIM旅行プランナー：ルートに合うプランを

Which eSIM fits your trip?

How it picks your plan

Destinations first

Sized to your trip

Cheapest way to cover it

Trip planning questions