Guides & articles
eSIM Guides
An eSIM is a SIM built into your phone that you activate by downloading a plan—no physical card to swap. This hub covers how eSIMs work, supported devices, setup, and what to do when it does not connect.
-
How Many Days Before You Travel Should You Buy an eSIM? Timing Tips and What to Watch For
海外旅行や留学・一時帰国の準備を進めていると、「eSIMはいつ買えばいいの？」「早く…
- eSIM Data Top-Ups Abroad: How Much Do They Cost? Cheaper Than Buying New, Plus 10% Off With Auto-Recharge 海外eSIMを使っていて「データが足りなくなったらどうしよう」と心配な方へ。先に結論…
-
What Are "Supported Networks" for an International eSIM? Choosing by the Local Carriers Youll Connect To
海外でeSIMを選ぶとき、容量や日数、料金は気にしても「実際にどの回線につながるのか…
-
VPN Slow or Dropping Abroad? What to Check on the eSIM Side First
海外でeSIMを使いながらVPNをオンにしたら、「読み込みが遅い」「ときどき切れる」…
-
Is Free Public Wi-Fi Abroad Dangerous? How to Use It Safely Alongside an eSIM
結論から言うと、海外のフリーWi-Fiは「絶対に危険」でも「完全に安全」でもなく、操…
- The Long-Stay Connectivity Guide: From eSIM Setup to Coming Home 海外赴任や留学、ワーホリ。1年以上、日本を離れる準備を進めるなかで、「通信ってどうす…
-
Getting Your Phone and Data Ready for Travel Abroad When Youre Worried About the Language | A Stress-Free First Trip
「英語が話せないけど、海外でスマホはちゃんと使える？」——はじめての渡航や海外赴任を…
-
Pre-Move Checklist: Keeping Your Home Phone Number and Staying Ready for SMS Verification Abroad
結論から：海外で銀行・証券・クレジットカードのSMS認証（ワンタイムパスワード）に困…
-
How to Save Data on a Travel eSIM: Settings and Habits to Avoid Speed Throttling
海外でeSIMを使っていると、「思ったより早く容量が減った」「動画を見ていたら急に遅…
-
How to Set Up Tethering While Traveling — and What to Do When It Wont Connect
海外でスマホのeSIMを契約したあと、「このデータをパソコンやタブレットでも使いたい…
