Trip length is how people buy, not “best eSIM 2026”.

Copied 29 Aug 2026 from official Japan pages:

  • Airalo 7-day 5GB $10, 10GB $17. Unlimited 7-day $27 (3GB/24h then 1 Mbps).
  • Ubigi 10GB/7 days $14 on Docomo.
  • Holafly 7-day $27.50, hotspot 1GB/day.

Maps + translation for a week in Tokyo is usually a 5–10GB problem, not an unlimited slogan. Check checkout.

Dated notes: https://before-you-land.tiiny.site/japan/7-days/

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