Japan eSIM
Land in Japan already online. Install your Roamis eSIM before you fly and connect the moment you arrive — no SIM swap, no roaming bills.
- Delivered in minutes
- Refund if it won’t install
- Keep your number
Japan eSIM plans
Choose how many days you’ll travel — validity starts when you connect, not when you buy.
- 無需換卡，現有手機直接用
- 落地自動連線
- 價格透明，無隱藏費用
- 付款後即時發送 QR 碼
- 24/7 線上客服
- 未使用 90 天內退款
即時——以 Email 寄送 QR Code
購買後 90 天內啟用
購買後尚未啟用 eSIM（尚未開啟 QR 碼），90 天內可全額退款。
Select your plan
每日 1GB 高速 · 用盡後無限（最高 128kbps）
Why travelers choose Roamis
Four things that actually matter on a trip.
Reliable
We connect through leading local operators, so you get a stable signal from the moment you land.
Fast
Delivered to your inbox in minutes with a QR you can install before you even leave home.
Simple
One-touch setup — scan, install, done. No SIM tray, no store visit, no roaming menus.
Global
One account for dozens of destinations. Top up or add a new country whenever your plans change.
Connected in three steps
From checkout to online in minutes.
Buy & receive
Pick your plan and get your eSIM QR by email within minutes.
Install
Scan the QR and add the eSIM to your phone before you fly.
Land & connect
Turn on the line when you arrive — you’re online instantly.
Frequently asked questions
Yes. Roamis connects through major Japanese networks, so you’re covered in Tokyo, Osaka, Kyoto, Hokkaido and beyond, including most rural and transit areas.
Validity starts when you install and connect in Japan — not when you buy. Set it up before you fly and it begins counting from your first connection on arrival.
Yes, you can share your connection to a laptop or another device. Heavy tethering may be subject to the fair-use terms shown on the plan.
No. The eSIM runs alongside your existing SIM, so you keep your number for calls and texts while using Roamis for data.
Get connected before you pack
Set up your travel eSIM today and land already online.
Choose a plan