Copied 29 Aug 2026 from official pages:

• Holafly Japan 7-day $27.50. Hotspot 1GB/day.
• Airalo unlimited 7-day $27. 3GB high-speed / 24h then 1 Mbps. Personal hotspot allowed on that plan.
• Ubigi 10GB/7 days $14 on Docomo. No 7-day unlimited SKU on the official page that day (404).

eSIM is not Suica. Welcome Suica Mobile is iOS / JR East. Maps still need a data line.

Dated notes: https://before-you-land.tiiny.site/japan/esim/

Disclosure: Airalo URL is Travelpayouts affiliate.
https://tp.media/r?campaign_id=541&marker=771402&p=8310&rs=567948&u=https%3A%2F%2Fwww.airalo.com%2Fjapan-esim