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Japan eSIM data plan

eSIM plan selection

Japan Unlimited eSIM

Choose Fixed data or Unlimited data for your Japan trip. Check the available plan details before you buy.

Travelling multiple countries? Would a wider Asia SIM be better for you?

One easy choice, based on your trip

How long is your trip?

Choose your plan

Suggested starting point

Includes 1GB/day high-speed data each day.

How Unlimited data works

Your daily allowance is at high speed. After that, data continues at reduced speeds.

View full details

Includes 1GB/day of high-speed data each day. · 1 Day

  • Top Up Available: No
  • Data Only: Yes
  • SMS: No
  • Calls: No, only through apps (VOIP)
  • Pre-Activation Days: 180 Days
  • Data Exit Country: HK
  • Hotspot: Yes
  • Speed Reduction: Yes
  • Coverage: JP
  • Networks: JP - NTT docomo 5G, JP - Rakuten Mobile 5G, JP - KDDI/au 5G, JP - SoftBank 5G
  • Supported Countries: Japan
Check phone compatibility

Check your phone

Check your phone before installing

Pick your phone from the list. If it only works with one mobile company, make sure it is unlocked first. You can still buy either way.

Two quick checks before you buy

  1. Your phone supports eSIMChoose its exact model below to check our compatibility guide.
  2. Your phone is unlockedIt needs to accept a SIM or eSIM from a network other than the one it was bought with.

Step 1: choose your phone brand.

Full device compatibility check →

Can’t find your phone in the list, or not sure it’s unlocked?

The list is a guide, not a guarantee. If your model is not listed, confirm eSIM support with the device maker and whether it is unlocked with the original network.

How to check whether your phone is unlocked

Try a physical SIM from a different network. If it can make calls, send texts and connect to data, the phone is unlocked. If you cannot try another SIM, ask the network it came from to confirm its lock status.

Want to give it a try instead? If the eSIM cannot work because your phone is locked and no data has been used, we can refund it, even if you installed it. Email support@roamnope.travel.

Need help after purchase?

If the eSIM does not connect after landing:

  1. Turn the new eSIM on and set it as your mobile data line.
  2. Enable data roaming for that eSIM.
  3. Toggle airplane mode, then restart your phone if needed.

Still stuck? Email support@roamnope.travel.

Read the FAQ or open the contact page.

Your eSIM

Destination
Japan
Plan type
Unlimited Data
Package
Unlimited data • 1GB/day daily high-speed allowance
£1.90gid://shopify/ProductVariant/64205638369629

Destination guide

Before you buy your Japan eSIM

Buying data for Japan? Choose the plan that matches your trip length and usage, install on stable Wi-Fi, and switch the eSIM data line on when you arrive.

  • Choose your plan

    Compare Fixed data and Unlimited options for your trip.

  • Install on Wi-Fi

    Add the eSIM before travel.

  • Connect when you arrive

    Set the eSIM as your mobile-data line.