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.
- 无需换卡，现有手机直接用
- 落地开机自动联网
- 价格透明，无隐藏费用
- 付款后二维码秒发
- 24小时在线客服
- 未激活 90 日全额退
即时——邮件发二维码
购买后 90 天内激活
购买后未激活 eSIM（未查看二维码），90 日内可全额退款。
Select your plan
每日 1GB 高速 · 用尽后无限（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