voilà eSIM Japan 2026: Cheap Data Plans & Prices

The cheapest voilà eSIM for Japan costs $1.40 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 voilà site.

Yes, voilà works in Japan on its Japan-only plans and on its regional and global eSIMs. 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 voilà's lowest prices by trip length:

• 7 days: $1.40 for 1 GB
• 15 days: $3.50 for 3 GB
• 30 days: $5.50 for 5 GB

No, voilà has no unlimited plans for Japan, so every plan comes with a set amount of data. When the data runs out, the connection stops, with no extra charges.

voilà is an eSIM store for travelers, with plans covering 203 destinations. On Trustpilot, 188 people have rated it 4.7 out of 5.

With voilà, 1 GB in Japan can cost as little as $0.70, on the plan with 50 GB for 30 days.

Yes, every voilà plan for Japan has 5G. Your phone needs to support 5G too: on iPhone, that means an iPhone 12 or newer.

Yes, every voilà plan lets you share data through a personal hotspot at no extra cost, with several devices at once.

No, voilà's Japan plans are data only, so your home number stays on your main SIM. You can still call and message people through WhatsApp or other apps.

Yes, you have 180 days from purchase to start using it, and you can install it in advance. The days start when the eSIM connects to a network in Japan.

Yes, you can add more data to the same eSIM in the voilà app, and the new data is available right away.

Yes, voilà has 10 regional plans that cover Japan and other countries, plus 5 global plans starting at $9.40. These keep you online as you cross borders. But if you're only going to Japan, a Japan-only plan costs less. For example, 10 GB for 30 days is $9.60 on the Japan eSIM and $21.00 on the regional one.