Saily eSIM Japan 2026: Cheap Data Plans & Prices

The cheapest Saily eSIM for Japan costs $3.99 and gives you 1 GB for 7 days. We recheck prices daily, so this price is up to date. You can buy it on the official Saily site.

Yes, Saily works in Japan on its Japan-only plans. If your eSIM is installed but won't connect after you land, open your phone's settings and turn on data roaming for it. Your home SIM can stay as it is.

For Japan alone, these are Saily's lowest prices by trip length:

• 7 days: $3.99 for 1 GB
• 30 days: $6.99 for 3 GB

Saily has no 15-day plan for Japan.

No, Saily has no unlimited plans for Japan, so every plan comes with a set amount of data.

Saily is an eSIM store for travelers, with plans covering 151 destinations. On Trustpilot, 32,743 people have rated it 4.7 out of 5. If you want prices for other countries and the full verdict, read the Saily eSIM review.

With Saily, 1 GB in Japan can cost as little as $1.15, on the plan with 20 GB for 30 days.

Yes, every Saily plan lets you share data through a personal hotspot, and shared data comes out of the same balance as data on your phone.

Yes, as a paid extra: in the Saily app you can add a US phone number for calls and texts, after an ID check. Saily's Japan plans themselves are data only, and some apps treat the number as an internet number, so login codes may not arrive.

Yes, you can buy it ahead and install it before your trip. The plan starts on its own when you arrive and connect to a network in Japan, and if you haven't used it within 180 days of purchase, it starts automatically.

Yes, you can add data to a Saily eSIM in the app. The new plan starts once your first plan runs out completely, and you can also turn on auto top-up.