文章与指南

eSIM 实用指南・文章列表

从海外 eSIM 的选择与使用方法，到无限流量、对比及不同使用场景。我们按主题整理了一系列文章，让您初次出国也不必为网络发愁。

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.

我们按目的地整理了支持情况、选择方法和设置要点。