Japan’s Best eSIM: DeSiM for Travel, Business, and Short Visits

Whether you’re visiting Japan for tourism, business, or a short stay, DeSiM is your ultimate eSIM solution. Experience fast, reliable internet with unbeatable coverage and convenience. Stay connected effortlessly with DeSiM—the perfect choice for any trip to Japan!

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DeSiM Great Voices

  • For travel in Japan, choose DeSiM eSIM!

    For travel in Japan, choose DeSiM eSIM!

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Where are you heading next?

Choose your destination and your data plan.

What is an eSIM?

It is a form of SIM card that is embedded directly into a device, and is a means of communication that can be used without physically inserting and removing a conventional SIM card.

Preparing for an overseas trip can be a lot of work, with passports, plane tickets, local currency, and more!

A smartphone is essential while traveling, for research and maps.

Should you rent a portable Wi-Fi router?

Or purchase an overseas prepaid SIM card?

We recommend the overseas eSIM service, which can be used immediately with your smartphone without any complicated procedures.

  • Carrying both a SIM card and a router

  • Purchasing an overseas SIM card

  • The rush before departure

  • The risk of losing your SIM card

  • Overseas Wi-Fi Rental

    • The router needs to be picked up and returned
    • It is heavy and bulky to carry
    • You need to make sure the battery is charged

  • Overseas Prepaid SIM Card

    • It takes a few days to arrive
    • There is a risk of losing or damaging the SIM card
    • The acquired SIM card needs to be replaced

  • Roaming

    •  You may end up with unexpected bills

  • No need to change SIM cards

    With an eSIM, you can use it just by scanning a QR code, so there’s no need to change SIM cards, thus no risk of losing or damaging them.

  • Complete your application online

    The activation process can be completed online, and you can use the service in as little as 10 minutes after setting up your device!

  • You can set it up at your destination

    You can set your eSIM up at your destination via Wi-Fi at the local airport or hotel!

  • No need to carry a Wi-Fi router

    You can travel lighter without having to worry about running out of battery

Why DeSiM?

We offer plans in over 140 countries and regions, providing a stable internet environment at an affordable price.

Feature #1

Unlimited Data

With a completely unlimited plan, you don’t have to worry about your speed slowing down no matter how much you use it. And you can check the data volume of other plans on WhatApp, so you can enjoy your trip with peace of mind.

Feature #2

Stable high-speed internet

It automatically selects the network with the best connection at your destination, so you can connect with stability and speed.

Feature #3

Reliable WhatApp customer support

With our support, you will be able to connect smoothly, even if it is your first time using the service.

With DeSiM’s eSIM

  • Fast!

    • No need to get a SIM card!
    • 5G high-speed data communication! (*If your carrier does not support 5G, it will be 4G)
    •  Even after the data limit is exceeded, you can continue to use the service at a low speed (unlimited plans will not have low speed)

  • Convenient!

    • Online application
    • High-speed data communication available in over 140 countries and regions around the world
    • Stable and secure
    • Overseas data eSIMs can be used with your everyday smartphone
    • No contract required
    • No need to insert or remove a SIM card
    • Just scan the QR code

  • No worries!

    • Prepaid services mean no high fees
    • No need to worry about losing your SIM card
    • WhatApp official customer support will assist you with any questions you may have!
    • Even first-time users can easily go through the process by watching the setup video

Comparison with other communication services

DeSiM SIM Card Roaming Public Wi-Fi Rental Wi-Fi
Use ◎ Easy ◎ Easy △ Somewhat difficult ◎ Easy △ Somewhat difficult
Delivery ◎ Online ✕ Physical delivery and return ◎ None ◎ Web registration ✕ Physical delivery and return
Safety ◎ Completely safe △ Risk of loss ◎ Safe ✕ Caution △ Risk of loss
Fee ◎ Low-cost ◎ Inexpensive × Expensive ◎ Free or inexpensive △ Slightly expensive

How to use DeSiM’s eSIM

Please make sure that your device is eSIM compatible and SIM unlocked

List of eSIM-compatible devices

(As of October 2023)

  • Apple

    iPhone 16 Pro Max / iPhone 16 Pro / Phone 16 plus / iPhone 16 / iPhone 15 Pro Max / iPhone 15 Pro / iPhone 15 Plus / iPhone 15 / iPhone 14 Pro Max / iPhone 14 Pro / iPhone 14 Plus / iPhone 14 / iPhone 13 Pro Max / iPhone 13 Pro / iPhone 13 mini / iPhone 13 / iPhone 12 Pro Max / iPhone 12 Pro / iPhone 12 mini / iPhone 12 / iPhone 11 Pro Max / iPhone 11 Pro / iPhone 11 / iPhone XS / iPhone XS Max / iPhone XR / iPhone SE 3 (2022) / iPhone SE 2 (2020)

  • Android

    Stellar X5 / Doogee v30 / Fairphone 4 / Fairphone 5 / Gemini / Gemini PDA / Google Pixel 8 Pro / Google Pixel 8 / Google Pixel Fold / Google Pixel 7a / Google Pixel 7 Pro / Google Pixel 7 / Google Pixel 6 Pro / Google Pixel 6 / Google Pixel 6a / Google Pixel 5 / Google Pixel 4 / Google Pixel 4a / Google Pixel 4 XL / Hammer Exporer PRO / Hammer Blade 3 / Hammer Blade 5G / HONOR Magic 4 Pro / HONOR Magic 5 pro / Huawei P40 / Huawei P40 Pro / Huawei Mate 40 Pro / Motorola Razr / Motorola Razr 5G / Motorola RAZR 40 / Motorola RAZR 40 Ultra / Motorola EDGE 40 Pro / Motorola G53 5G / Motorola G52J 5G / Motorola G53J 5G / Nokia G60 5G / Nokia X30 5G / Nokia XR21 / X5 / OnePlus 11 5G / OnePlus 12 5G / Oppo Find N2 Flip / Oppo Find X3 Pro / Oppo Find X5 / Oppo Find X5 Pro / Oppo Reno 5 A / Oppo A55s 5G / Oppo Reno6 Pro 5G / Rakuten Hand 5G / Rakuten Mini / Rakuten Big‑S / Rakuten Big / Samsung / Samsung Galaxy S24 / Samsung Galaxy S24 Ultra / Samsung Galaxy S24+ / Samsung Galaxy A54 5G /
    Samsung Galaxy Fold / Samsung Galaxy Note20 / Samsung Galaxy Note20 Ultra / Samsung Galaxy S23 / Samsung Galaxy S23+ /
    Samsung Galaxy S23 Ultra / Samsung Galaxy S22 / Samsung Galaxy S22+ / Samsung Galaxy S22 Ultra / Samsung Galaxy S21 5G / Samsung Galaxy S21+ 5G / Samsung Galaxy S21 Ultra 5G / Samsung Galaxy S20 / Samsung Galaxy S20+ / Samsung Galaxy S20 Ultra / Samsung Galaxy Z Flip / Samsung Galaxy Z Fold 2 / Samsung Galaxy Z Fold 3 5G / Samsung Galaxy Z Fold 4 /
    Samsung Galaxy Z Fold 5 / Samsung Galaxy Z Flip 3 5G Fold / Samsung Galaxy Z Flip 3 5G / Samsung Galaxy Z Flip 4 /
    Samsung Galaxy Z Flip 5 / Samsung Galaxy Tab S9 / Aquos Sense 4 lite / Aquos Sense 7 / Aquos R8 Pro / Xperia 10 III Lite /
    Xperia 1 IV / Xperia 5 IV / Xperia 10 IV / Xperia 1 V / Xperia 5 V / Xperia 10 V / Surface Duo / Xiaomi 14 Pro / Xiaomi 14 /
    Xiaomi 12T Pro / Xiaomi 13 / Xiaomi 13 Lite / Xiaomi 13 Pro

※ Note that some models are not eSIM compatible, so please check before purchasing.
※ Operation is not guaranteed for Android and other devices not listed.

How to use in 3 steps

The setup is very easy! You can do it right before your trip!

  • STEP1

    Purchase an eSIM and activate it via this

  • STEP2

    Scan the QR code to activate your eSIM

  • STEP3

    The connection is ready!

Why not use an eSIM to connect to the Internet more conveniently?

FAQ

Which devices are supported?

  • Only available on SIM-free or unlocked devices and eSIM-compatible smartphones. Not available on tablets or Wi-Fi routers.
  • iPhone XR and later are compatible with eSIM (including the iPhone 16 series).
  • iPhones in mainland China and iPhone devices in Hong Kong and Macau (excluding iPhone 13 mini, iPhone 12 mini, iPhone SE 2020, and iPhone XS) do not have eSIM functionality.

How many times can an eSIM be used?

  • An eSIM can only be activated on one device, and cannot at the moment be transferred to another device. You cannot scan the same QR code on two devices, but tethering is available with some eSIM plans.

When should I delete my eSIM?

If you want to continue using your eSIM, do not delete it. Once you delete it, you will not be able to read the QR code and it cannot be reissued.

  • If your eSIM doesn’t work for some reason, please don’t delete it.
  • If your eSIM doesn’t work, please contact our customer support team. We’ll help you identify the cause of the issue and resolve it.

When should I set up my eSIM?

  • A Wi-Fi connection is required to set up an eSIM. Ideally, you install and activate your eSIM before you leave on your trip.　
  • You can activate your eSIM once you arrive at your destination, but please note that you will need a Wi-Fi connection.

Can I use a SIM card and an eSIM at the same time?

  • Yes. You can use two SIMs: a SIM plan for calls and SMS, and an eSIM plan for data communication. If you make the necessary settings on your device, you can use both at the same time.
  • However, please note that if you enable the SIM plan settings, international roaming charges may be incurred when making calls or sending and receiving SMS.