Best eSIM for Japan: 6 Japanese eSIM prices compared [April 2025 Update]

When traveling to Japan, a stable network connection is very important, which is one of the reasons why you need to use eSIM. What is eSIM? It is a virtual SIM card that allows you to connect to the internet from anywhere in the world without a physical card. At the same time, Japan's eSIM card can save you roaming fees and provide you with more data plans.

There are many providers offering eSIM on the market. With so many eSIM providers, it can be difficult to choose the right eSIM provider. But don't worry! To help you choose the provider that best suits your needs, we have sorted out and reviewed many different providers and highlighted the 6 best eSIMs for Japan. (Data latest updated to April 3, 2025)

#1 MicroEsim

MicroEsim offers full coverage across Japan, hence making it one of the great options for eSIM Japan travel. They have different plans that would suit all individual needs. From 1 to 60 days, there are options for different data allowances, such as daily, total, and unlimited packages (covering at least 500 MB daily to a total of 60GB). The price is affordable, from $0.90 USD

One of the key features is that, even after you have consumed your purchased high-speed data, you will be maintained at 256kbps, which assures you that you will never be entirely off the grid. Partnering with reliable local carriers like Softbank, Docomo, and KDDI, MicroEsim provides stable signals and fast internet, including support for 5G.

Moreover, MicroEsim is very easy to use. You can purchase, activate, and start using your eSIM right away. Notably, the best point is that you do not have to go through eKYC. Activation is fast. Just scan the QR code, and you are good to go. Additionally, it supports sharing a hotspot with other devices, like a laptop or a tablet, so you would not get charged for roaming. Overall, MicroEsim, as one of the best eSIMs for international travel, is a very convenient and less expensive solution for staying connected while traveling across Japan.

Here are some eSIM Japan plans from MicroEsim:

Explore & Buy More MicroEsim Japan eSIM plans

#2 Airalo Japan eSIM

Airalo is certainly among the best eSIMs for Asia, with very affordable, flexible data plans to fit the purposes of any Japan travel. Supporting 5G, their eSIM plans include 1GB, 2GB, 3GB for 7 days, 15 days, and 30 days, and 5GB,10GB, 20GB for 30-day long-term use. It provides great speeds and an easy setup that doesn't require any personal identification.

With prices starting at $4.50 for 7 days, Airalo will give you reliable and economical connectivity throughout your journey in Japan and beyond. However, as you may have noticed, the biggest amount of data is 20GB for 30 days. For travels with huge amounts of data, this may not be a suitable choice. Still, it remains a great option for travelers looking for convenience and economic benefits.

Here are some eSIM Japan plans from Airalo:

#3 Ubigi Japan eSIM

Ubigi is a reliable eSIM provider that offers flexible plans, like daily, monthly, and yearly (e.g., a single day 500MB, monthly 1GB, 3GB, 10GB, and annual 60GB packages but limited to 2GB and 5GB per month). Its partnership with NTT Docomo ensures strong coverage with fast speeds throughout Japan.

However, although Ubigi supports 5G, they do not have Japan esim unlimited data plans. The options leave to 1 day, 30 days, and a year, without more flexible choices like 3 days, 7 days, and 15 days. Also, Ubigi customer support is only available in English and via email, and it often takes a very long time before your questions are replied to.

Here are some eSIM Japan plans from Ubigi:

#4 Saily Japan eSIM

Saily is one of the most secure eSIM options for any traveler who values safety greatly. You don't need to worry about Saily eSIM not working in Japan. Developed by a team behind the famous NordVPN, Saily offers five varied plans with customer support of the best quality.

The pricing plans are different and pretty affordable. You can get a 7-day plan with 1GB of data for $3.99 or a 30-day plan that will offer you 3GB, 5GB, 10GB, and 20GB subscriptions. However, there is also a drawback to consider, as there is no unlimited data support. 

Here are some eSIM Japan plans from Saily:
There are some price increases：
30 days, 5GB, original price increased from 9.99 USD to 10.99 USD
30 days, 20GB original price increased from 22.99 USD to 24.99 USD

#5 Sakura Mobile Japan eSIM

Sakura Mobile, operating under the NTT DOCOMO Network, Japan's largest 4G LTE network with 99% population coverage, is a trusted local provider in Japan. Their prices scale based on the duration of stay (up to 90 days) and come with unlimited data (but will be limited after using 3GB of data and reducing speed to 200 Kbps), with daily costs of around JPY 1650 (tax included). However, although the data is unlimited, Sakura does not support 5 G. So, users who seek high-speed data may not be satisfied with this.

Here are some eSIM plans from Sakura Mobile:

#6 Nomad Japan eSIM

This places Nomad in one rather unique corner, offering both data and SMS services (purchased separately) for its travelers. It has varied plans, including regular offers like a 30-day package with 10GB and a 45-day package with 20 GB. For shorter stays, day packages are available. In this case, you can buy data from 1 to 7 days. The rates start at just $2.50 for 500MB per day. It does have a fully unlimited data plan, but it's capped at 512kbps after you use up the data, and only a few plans support 5G. Compared to many other providers, however, Nomad's 7-day plans are generally toward the higher end of the price spectrum. Also, it needs to download its app to activate.

Here are some eSIM plans from Nomad:

How to Choose the Best eSIM for Japan Travel

If you're planning an eSIM for your Japan trip, bear in mind the duration of your stay and the data plans available. Request a provider that offers a mix of fast speed and unlimited data to enjoy connectivity for the entire duration of your trip. You can compare the offers and choose a plan that suits your budget and travel period. Here is a summary for your reference:

Tips for Using an Esim in Japan

An eSIM in Japan will definitely increase your experience as a visitor, but you also need to watch out:

• Make sure that your phone is unlocked: If your phone is locked, then it is bonded to a specific carrier. You can check this with your carrier before your trip.

• Check for Device Compatibility: In general, this should not be a problem since most phones with eSIM capability are from large manufacturers (Apple, Google, Samsung), made in the last few years.

• eSIM Activation Timing: Some eSIMs activate upon a first network connection, and some are active from the time they are installed, so wait to install until close to your leave to maximize the active date range. Additionally, some eSIMs require activation within 1-3 months of purchasing to avoid expiration.

• Enable Tethering: In case you need to share your internet with other devices, make sure the eSIM plan given provides for tethering or a mobile hotspot. This will help in connecting other devices like laptops or tablets while on the move.

Final Verdict

eSIM is essential to ensure that you stay connected even when traveling in Japan without the hassle of traditional SIM cards.
Among the best options we have researched, the best eSIM for Japan options are: Microesim Japan eSIM
Offers coverage throughout Japan, has very reasonable prices, and can be activated instantly. Whether it is a short-term or long-term stay, MicroEsim offers flexible plans to meet all your requirements. Check out MicroEsim Japan eSIM now and enjoy staying connected while traveling in Japan!

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