Top offer
Code
Current eSIM Japan offers
Sale prices on Japan eSIM plans (5G Unlimited Max from $11.99, was $15.99)
See details
- Source: eSIM Japan's home page
Get eSIM Japan codes by email
Choose the top 5G Max package for only $11.99 with this eSIM Japan deal.
See details
Take a special discount on the 10GB Data plan for just $14.99.
See details
ESIM data plans are available at $9.99 on eSIM Japan.
See details
About eSIM Japan
eSIM Japan sells prepaid, data-only eSIM plans for international visitors to Japan, from nationwide and city plans to multi-country Asia and global ones, sent as a QR code by email.
Prices are in US dollars, and the refund rule shapes any saving: once the eSIM is installed or its QR code scanned, a refund is off the table.
ESIMJAPAN.com is run by HARRIE Inc., a telecom technology firm that builds mobile data services for people traveling abroad, and it belongs to the ESIMWORLD.net network, which runs similar destination sites for Korea, Taiwan, Thailand, Australia, the UK and other countries. Installation and day-to-day management go through the FLIT eSIM app for iOS and Android, where travelers can activate a plan and watch their data use.
The company runs its own testing program, Connectivity Lab, which measures speed, latency and stability on Japanese networks and publishes reports; the live speed figures on its home page come from a 5G unlimited eSIM on the au (KDDI) network. Travelers can keep their home SIM active for calls and texts while the eSIM handles data. Support staff answer by email or WhatsApp around the clock, and the site is offered in English, German, Chinese and Japanese.
eSIM Japan shipping, returns and perks
- 5G Unlimited Max Data
- Plans run from $11.99 to $79.99, and the entry plan showed a sale price of $11.99, down from $15.99.
- 4G and Fixed Data
- Unlimited 4G plans cost $4.99 to $109.99, while Fixed Data in 5GB, 10GB or 30GB sizes costs $6.99 to $59.99.
- Delivery
- The QR code usually lands in your inbox within 15 minutes, so check spam before writing to support.
- Shelf life
- An unused eSIM stays valid for 180 days from purchase, starting on installation or first network connection depending on the plan.
- Refunds
- Ask support by email or WhatsApp with your order number before installing; money returns to the original payment method within 30 business days.
- What you get
- Data only, with no local phone number, though hotspot and tethering are allowed and calls run through WhatsApp or Skype.
- Buying from abroad
- Delivery is digital, so you can buy at home, including in the US, before you fly.
From eSIM Japan's own pages, read Oct 8, 2026.
Sources: eSIM Japan all plans page, eSIM Japan FAQ, eSIM Japan returns policy, eSIM Japan website
How to use a eSIM Japan coupon code
- The pages read don't say where eSIM Japan's code box appears, so look for it before you confirm the order, because the QR code is emailed right after.
- Plans showed sale prices on the read date, with 5G Unlimited Max at $11.99 instead of $15.99, so compare any code against the sale price rather than the old one.
- Check first that your phone is eSIM-compatible and not carrier-locked.
- If it fails either test, support may still consider a refund, but only while the eSIM hasn't been installed.
- Never scan the QR code just to look at it, since scanning ends your right to a refund.
- Charges go through in US dollars.
More ways to save at eSIM Japan
- Size the plan to your trip, because the price spread is wide.
- Fixed Data starts at $6.99 for light use, while 5G Unlimited Max Data tops out at $79.99.
- Hotspot sharing is allowed, so a single plan can cover a laptop too.
- The 180-day validity lets you buy during a sale well before your flight, as long as you don't install early on a plan that starts counting at installation.
- Multi-country Asia plans suit a trip that continues past Japan.
eSIM Japan questions, answered
Can you get a refund on an eSIM Japan plan?
Refunds are possible while the eSIM hasn't been installed, activated or scanned, and before 3 months have passed. Contact support by email or WhatsApp with your order number.
Does an eSIM Japan plan come with a phone number?
Plans are data-only and come without a local phone number. Calls go through apps such as WhatsApp or Skype.
How fast does the eSIM Japan QR code arrive?
The QR code usually arrives by email within 15 minutes of ordering. If it doesn't show up, check spam, then contact support.
What currency does eSIM Japan charge in?
All transactions are processed in US dollars, and plans are listed in dollars too, with Fixed Data from $6.99.
How early before a trip can you buy an eSIM Japan plan?
An eSIM stays valid for 180 days from purchase. Depending on the plan, it starts on installation or on first connection to the local network.
Can an eSIM Japan plan share data as a hotspot?
Hotspot and tethering are allowed, so you can pass data to a laptop or another device.