文章與指南

eSIM 實用指南・文章一覽

從海外 eSIM 的選擇與使用方法，到無限流量、比較及各種使用情境。我們依主題整理了一系列文章，讓您初次出國也不必為網路發愁。

eSIM basics & how-to

Basics for first-timers: how eSIMs work, supported devices, setup, and what to do if it does not connect.

How to choose an unlimited eSIM, with honest notes on speed limits, fair-use policies, and tethering.

Compare eSIMs by data, days, covered countries, and price to find the right plan for you.

Choosing connectivity by scenario: study abroad, travel, temporary return to Japan, long stays, and more.

How phone numbers, SMS, and verification work with data-only eSIMs, and what alternatives you can use.

The basics and caveats of IP addresses and VPNs when using Japanese services from abroad.

Practical tips to cut your mobile and data costs at home and abroad.

我們依目的地整理了支援情況、選擇方法與設定要點。