Same 20 GB / 30-day plan, four brands, one date. The networks are the same; the price is not.
Japan is the most competitive eSIM destination in the world — thousands of plans from dozens of brands. Most of them run on the same four networks. Here is the same 20 GB / 30-day plan from four brands, priced on 2026-09-05 from esimradar.com.
Competitor prices are the cheapest same-spec plan (20 GB, 30 days or the nearest match) listed on esimradar.com, checked 2026-09-05. Our prices are live checkout prices. Prices change; verify before you rely on them.
3 GB $3.09 · 5 GB $4.39 · 10 GB $7.19 · 20 GB $12.09 · 50 GB $24.39, all 30 days, plus day passes from 500 MB to 10 GB a day for 1–30 days. Every price is live on the Japan eSIM page.
For most trips, the one with the lowest price per GB on the networks you want. On a 20 GB / 30-day plan as of 2026-09-05, Landed eSIM is $12.09 against Nomad $23.00, Saily $24.99, Airalo $25.00 — same local networks.
NTT docomo, SoftBank, KDDI/au and Rakuten Mobile, depending on the plan. All have excellent urban and rural coverage including most of the shinkansen route. Our Japan plans use all four with 5G where available.
3–5 GB for most people; Japan skews data-heavy because of constant navigation, train apps and camera translation. 10 GB if you tether a laptop or stay two weeks.
eSIM, unless your phone is old or carrier-locked. Pocket WiFi is $5–10 a day plus a device to charge, collect and return; a 20 GB eSIM for the whole trip is about the price of two days of rental.
No — it starts on the first connection in Japan. Install at home on WiFi; an unused eSIM stays valid for 180 days after purchase.
Four networks, 5G, hotspot included, activation on first connection.
See Japan plansGetting online in Japan