eSIM plans

eSIM plans for Japan

In Japan, mobile data is particularly helpful for train connections, maps, translation and reservations. An eSIM avoids changing the physical SIM and can usually be prepared before departure.

Compare eSIM plans ↓
eSIM Japan
AI image created by UDL Intermedia

eSIM plans for Japan

ProviderDataValidityNetworkPrice
Lowest priceFor short tripssimbyeJapan 1GB 7Days1 GB7 days4G / 5GHotspot · Top up1,95 €View eSIM plan →
simbyeAsia 1GB 7 Days1 GB7 days4GHotspot · Top up4,95 €View eSIM plan →
simbyeJapan 3GB 15Days3 GB15 days4G / 5GHotspot · Top up4,95 €View eSIM plan →
simbyeJapan 5GB 30Days5 GB30 days4G / 5GHotspot · Top up6,95 €View eSIM plan →
simbyeJapan 10GB 30Days10 GB30 days4G / 5GHotspot · Top up11,95 €View eSIM plan →
simbyeAsia 3GB 15 Days3 GB15 days4GHotspot · Top up14,95 €View eSIM plan →
simbyeAsia 5GB 30 Days5 GB30 days4GHotspot · Top up18,95 €View eSIM plan →
simbyeJapan 20GB 30Days20 GB30 days4G / 5GHotspot · Top up18,95 €View eSIM plan →
UnlimitedsimbyeJapan Unlimited 7 DaysUnlimited7 days4G / 5GHotspot18,95 €View eSIM plan →
simbyeAsia 10GB 30 Days10 GB30 days4GHotspot · Top up28,95 €View eSIM plan →
UnlimitedsimbyeJapan Unlimited 15 DaysUnlimited15 days4G / 5GHotspot33,95 €View eSIM plan →
Best price/GBsimbyeJapan 50GB 180Days50 GB180 days4G / 5GHotspot · Top up42,95 €View eSIM plan →
simbyeAsia 20GB 90 Days20 GB90 days4GHotspot · Top up52,95 €View eSIM plan →
UnlimitedsimbyeJapan Unlimited 30 DaysUnlimited30 days4G / 5GHotspot66,95 €View eSIM plan →

Decision labels are calculated automatically from current price, data allowance and validity – no paid placement.

Affiliate disclosure: We may earn a commission when you purchase through marked partner links. This does not increase your price.

Quick check before buying

Quick check before buying

In Japan, mobile data is particularly helpful for train connections, maps, translation and reservations. An eSIM avoids changing the physical SIM and can usually be prepared before departure.

  • Allow enough data for maps and translation tools.
  • Before departure, make sure the QR code and installation details are accessible offline.
  • If several devices need internet access, check tethering support.

Never used an eSIM before?

No problem. We explain the process in plain language, even if this is your first eSIM.

1

Choose destination

Select your destination and compare suitable data packages.

2

Buy a plan

Open the matching provider offer and complete your purchase.

3

Install the eSIM

After purchase you receive installation details, often as a QR code.

4

Go online abroad

Use the travel eSIM for mobile data and enable data roaming if required.

Open step-by-step setup guide →
eSIM QR
AI image created by UDL Intermedia
AWIN · Live-Reisedaten

Matching travel offers – Japan

Only feed offers that are currently available and clearly assigned to this destination.

Amanemu – JapanAvailable in feed60 ★
Shima · Präfektur Mie · Japan

Amanemu

BoardHalfBoardDuration1 nightsRoomS00Travel dates05.01.2027 – 06.01.2027Rating100 %
Price per personfrom 949,00 €
More travel details
Address
Shima
Travel provider
ITS Reisen DE
Room
Suite
Info
Amanemu
View travel offer →

Price and availability may change at the provider. The linked offer page is authoritative.

Frequently asked eSIM questions – Japan

What is an eSIM?

An eSIM is a digital SIM profile stored on a compatible device. You do not need to insert a physical plastic SIM card.

How do I install an eSIM?

After purchase, the provider sends installation details, often as a QR code. Open the phone’s mobile network settings, choose the option to add an eSIM and follow the instructions.

When should I install a travel eSIM?

It is usually convenient to prepare the installation before travelling while you have reliable Wi-Fi. Whether validity starts immediately or only when the eSIM first connects depends on the provider and plan, so check the terms before activation.

Do I need data roaming?

Many travel eSIMs require data roaming because they connect through partner networks. Enable roaming only for the travel eSIM when the plan instructions require it.

Can I keep my normal SIM active?

On dual-SIM devices, you can usually keep your normal SIM active. Make sure mobile data is assigned to the travel eSIM so your home plan is not accidentally used for roaming data.

How do I know whether my phone supports eSIM?

Support depends on the exact device model and sometimes the sales region. Check the phone settings and the manufacturer specifications for your exact variant.

How much data do I need while travelling?

Messaging, maps and occasional searches use relatively little data. Social media, video, cloud backups, long navigation sessions and hotspot use consume much more. Leave some reserve.

What does Unlimited mean on an eSIM plan?

Unlimited does not always mean full speed without limits. Some plans have fair-use rules or reduce speed after a daily allowance. The provider’s plan conditions are decisive.

Can I use hotspot or tethering with an eSIM?

Many plans allow tethering or a personal hotspot, but not all. eSIMFINDER shows this feature when it is present in the partner feed. Check the provider’s final plan details before buying.

Do I need a new number for WhatsApp?

No. A data eSIM can provide the internet connection while WhatsApp remains registered to your existing number. Whether an eSIM plan includes its own phone number depends on the specific plan.