eSIM & mobile data
-
eSIM or pocket Wi-Fi in Japan? How to pick without overpaying
A Tokyo resident's plain comparison of eSIMs and pocket Wi-Fi for a Japan trip: what each really costs, who each suits, and the traps that catch people.
-
Will your phone take a Japanese eSIM? How to check before you buy one
A Tokyo resident explains how to check whether your own phone can take a Japan eSIM — the eSIM hardware test, the carrier-lock test, and what to do if either fails.
-
Japan eSIMs that give you a phone number, and when you actually need one
A Tokyo resident explains when a Japan trip really needs a phone number versus data-only — and the SIM and eSIM options that include a Japanese number when it matters.
-
How much data you really use on a two-week trip to Japan
A Tokyo resident breaks down realistic data use on a Japan trip — maps, translation, messaging and video — so you can size an eSIM plan without running dry or overpaying.
-
Free Wi-Fi at Japanese airports and stations: what works, what doesn't
A Tokyo resident on the reality of free public Wi-Fi in Japan — where it works, where it's slow or gated, and why it's a backup rather than a plan for staying connected.
-
Installing a Japan eSIM: the steps, and the two places people get stuck
A Tokyo resident walks through installing a Japan eSIM step by step — when to install, how to switch it on when you land, and the two screens that trip people up.
-
The eSIMs for Japan I'd actually recommend, compared on price and coverage
A Tokyo resident compares the Japan eSIMs worth buying — Airalo, Saily, Ubigi and more — on price, data, ease of setup and the small print that catches people.