The Japan Rail Pass price splits in two on 1 October 2026, and that changes the answer. A 2026 guide to booking the shinkansen: the Nozomi supplement, the luggage rule that fines you, and when a pass is a waste of money.
Every guide says 1–2 GB a day. I worked out where the megabytes actually go on a full day of walking Tokyo with the maps open — and which Japanese network each travel eSIM really runs on.
Borderless in Azabudai Hills or Planets in Toyosu? A Tokyo resident who works in property development compares both teamLab venues — tickets, crowds, what’s around each, and who should book which in 2026.