Are you visiting Japan soon and fearing the substantial roaming fees? Look only as far as eSIMs. They are embedded SIMs, and unlike physical cards, eSIMs allow you to switch carriers effortlessly. It’s perfect for various travelers — from multi-country to simply tech-savvy tourists.
eSIM technology is a simple, secure, and space-saving solution, but picking an eSIM can become a challenge — especially for first-time users. Read this best eSIM for Japan article before you explore the country and ensure you get the best eSIM out there.
Choosing the right eSIM provider for your long-awaited trip to Japan is not necessarily an easy task. With so many options available, the process can get quite overwhelming.
How We Rank eSIM Providers
While we strive to provide an objective ranking, our recommendations are grounded in thorough research and key factors such as:
Reliability
Network quality and consistency across different regions in Germany
Pricing
Value for money and competitive rates for data packages
User Ratings
Customer satisfaction and reviews from real travelers
Ease of Use
Simplicity of activation, app interface, and setup process
Extra Features
Additional benefits like tethering, multi-device support, and customer service
📌 Note: Prices and features may change, so we always recommend checking the latest details on the provider's official website before purchasing.
Best eSIM providers for Japan
To help you with the selection process, I’ve compiled a list of seven providers that, in my opinion, offer the best eSIM for Japan. I’ll review each of them based on criteria such as plans, pricing, coverage, and user reviews.
Ubigi
best eSIM for Japan with a wide plan selection
Networks
3G, 4G, LTE, 5G
Countries
200+
First on my best eSIM for Japan list is Ubigi, a provider founded in 2017, offering a variety of data plans that would most likely fit anyone’s needs. To learn more, check out my dedicated Ubigi review.
Network and coverage. Ubigi offers data plans and access to 4G and 5G networks in over 200 countries and territories.
Plans and prices. What’s unique about Ubigi is its wide range of one-off, monthly, and annual data plans. Additionally, their selection includes plans of various sizes, from small data plans to unlimited ones. Ubigi also offers regional and global data packages. Plan prices for Japan eSIM start at $2.50 for 500 MB for one day.
User reviews. Ubigi gets positive reviews for its easy setup, reliable app, and affordable plans. Travelers also appreciate the good coverage in places like Japan, yet some mention issues with slow customer support, data speed caps, and trouble reinstalling eSIMs. Loyal users wish for more discounts too.
Pros
- ✓ Available in 200+ destinations
- ✓ Regional and global plans available
- ✓ Monthly and annual plans available
- ✓ Budget-friendly
- ✓ Offers unlimited data plans
- ✓ Allows tethering
- ✓ Allows tethering
Cons
- • Doesn’t include traditional phone calls and texts
- • No 24/7 customer support
Airalo
best eSIM data plans for global coverage
Networks
3G, 4G, LTE, 5G
Countries
200+
Airalo’s mission is clear: “Stay connected, wherever you travel, at affordable rates.” With coverage in over 200 countries and regions, Airalo stands as one of the leading providers in the eSIM market.
Network and coverage. Airalo covers over 200 destinations and offers 5G speeds, which is pretty impressive. Just keep in mind that the speed might depend on where you are.
Plans and prices. For most destinations, Airalo provides an extensive selection of plans, from small data packages to unlimited options. They also offer local, regional, and global plans to cater to diverse travel needs. For travelers heading to Japan, Airalo currently offers several packages ranging from 1 GB to 20 GB, with prices starting at $4.50. Unfortunately, they don’t yet provide any unlimited data plans for this destination.
User reviews. While Airalo is a popular eSIM provider, reviews are mixed. Many users like its easy setup, reliable connections, and cost-effectiveness for travel. However, some have faced issues with poor customer support, connectivity problems, and difficulties with global plans or data top-ups. It’s convenient for many, but not without its challenges.
Pros
- ✓ Available in 200+ destinations
- ✓ 24/7 customer support
- ✓ Allows tethering
- ✓ Offers unlimited data plans
- ✓ Regional and global plans available
- ✓ Some plans include traditional phone calls and texts
- ✓ Top-up option
Cons
- • Some plans include traditional phone calls and texts
- • Limited plan selection for some countries
Jetpac
best budget-friendly regional eSIM plans
Networks
3G, 4G, LTE, 5G
Countries
3G, 4G, LTE, 5G
Next on my list is Jetpac — an eSIM provider offering reliable and highly affordable regional plans for travelers exploring not just one but multiple Asian countries.
Network and coverage. Jetpac’s coverage extends to over 150 countries and territories, offering a slightly smaller range than some competitors, but with a variety of affordable single-country and multi-country plans. In Japan, they provide high 4G, LTE, and 5G speeds, depending on availability.
Plans and prices. The provider lets users select from a variety of local and multi-country plans. Even though there are no unlimited data plans, you can get a Japan eSIM package with up to 50 GB, with prices for local, regional, and global plans starting at $4 for 1 GB.
User reviews. Most reviews online for Jetpac are positive, with users enjoying the easy setup, reliable connections, and affordable plans, especially for city travel. However, some faced issues with rural coverage, setup glitches, or slow customer support.
Pros
- ✓ 24/7 customer support
- ✓ Budget-friendly regional plans
- ✓ Allows tethering
- ✓ Flexible plan selection
- ✓ Regional and global plans available
- ✓ Top-up option
Cons
- • Relatively limited coverage (150+ countries and territories)
- • No unlimited data plans
- • Doesn’t include traditional phone calls and texts
Saily
best eSIM for Japan with an easy-to-use app
Networks
3G, 4G, LTE, 5G
Countries
190+
One of my personal favorite eSIM providers, not just for Japan but for international travel in general, is Saily. Developed by the trusted cybersecurity company behind NordVPN, Saily offers affordable plans and an easy-to-use app.
Network and coverage. With coverage in over 190 countries and destinations, Saily eSIM offers a variety of plans, including local, regional, and global options. It also provides 5G speeds, though access depends on your specific location.
Plans and prices. For Japan, you can choose from a range of plans, from 1 GB to 20 GB. Prices start at an affordable $3.79 for 1 GB, valid for a week. Unfortunately, Saily doesn’t currently offer unlimited data. Yet, with a flexible selection of plans, most travelers should be able to find a package that suits their needs.
User reviews. Saily has a strong reputation online, with users mentioning its easy setup, reliable connectivity, and helpful support. While some report regional connectivity issues or occasional challenges with troubleshooting, it seems to be a dependable choice for international travel.
Pros
- ✓ Available in 200+ destinations
- ✓ 24/7 customer support
- ✓ Allows tethering
- ✓ Regional and global plans available
- ✓ Top-up option
Cons
- • No unlimited data plans
- • Doesn’t include traditional phone calls and texts
Holafly
best unlimited data plans for Japan
Networks
3G, 4G, LTE, 5G
Countries
200+
Holafly is another well-known eSIM provider, popular among data junkies for its unlimited data plan selection. If you’re curious to learn more, feel free to check out my detailed Holafly review.
Network and coverage. Holafly provides unlimited data plans in over 200 countries and destinations, offering connectivity options like 3G, 4G, LTE, and 5G.
Plans and prices. Holafly offers not only local, regional, and global plans but even city-specific data plans. All of their plans come with unlimited data, making them ideal for those who don’t want to worry about limits while traveling. However, while unlimited plans are convenient, they tend to be pricier compared to other providers. For Japan, unlimited data for one day costs $5.90.
User reviews. Holafly gets praised online for its unlimited data plans, reliable connectivity, and responsive customer service. However, while setup is generally easy, some users faced issues with speed, hotspot limits, or data cap policies for unlimited plans. Overall, it’s a popular choice, though a few have noted challenges with activation and support.
Pros
- ✓ Available in 200+ destinations
- ✓ 24/7 customer support
- ✓ Allows tethering
- ✓ Offers unlimited data plans
- ✓ Regional and global plans available
Cons
- • Relatively expensive
- • No limited data plans
- • Doesn’t include traditional phone calls and texts
. eSIM Japan
best eSIM with city-specific plans for Japan
Networks
3G, 4G, LTE, 5G
Countries
30
The next provider on my list is eSIM Japan, offering data plans specifically for travelers in Japan.
Network and coverage. Since the service is solely for Japan explorers, the coverage for this one isn’t huge — only 30 countries. That’s because, besides local and city-specific plans, eSIM Japan also offers some multi-country plans that could be convenient for those traveling to several Asian countries. In terms of connectivity, they promise 4G and LTE types (5G with some plans).
Plans and prices. eSIM Japan offers local, multi-country, and city-specific plans. The regional plans also include such destinations as, for example, South Korea, Taiwan, China, the USA, and Australia. The cheapest plans are the city-specific ones, with prices starting at $4.99, delivering unlimited data for three days. Other plans start at $6.99 for 3 GB, valid for a week. Compared to some other providers out there, the prices are generally quite affordable.
User reviews. Overall, users found the eSIM affordable, easy to use, and reliable in major cities, with good coverage and fast speeds. Common concerns included unclear activation instructions, limited coverage in crowded areas, and its data-only functionality. Despite minor issues, most users were satisfied and would use the service again.
Pros
- ✓ 24/7 customer support
- ✓ Allows tethering
- ✓ Offers unlimited data plans
- ✓ Regional and city-specific plans available
- ✓ Top-up option
Cons
- • Relatively limited coverage (30 destinations)
- • Doesn’t include traditional phone calls and texts
- • There’s no app
Sakura Mobile
eSIM created specifically for Japan
Networks
3G, 4G, LTE
Countries
Japan only
I’m finishing my list with Sakura Mobile — an eSIM provider that also focuses on folks exploring Japan. In addition to eSIMs, they also offer SIM cards and pocket Wi-Fi.
Network and coverage. Sakura Mobile’s coverage includes Japan only, so it could be a great option for those traveling only to this specific country. The provider promises LTE connectivity.
Plans and prices. Sakura Mobile offers local plans only and allows users to choose plans with 1 to 200 GB. The validity period is up to 90 days. In terms of prices, they seem to be a bit higher compared to some other providers — 1 GB of data for three days costs around $13.
User reviews. Users found Sakura Mobile’s eSIMs easy to set up and appreciated their reliable coverage and fast speeds, especially in cities like Tokyo and Kyoto. They liked the convenience of activation and not needing a physical SIM card. However, some faced challenges with installation, unclear instructions, and issues checking data usage. A few also noted the high cost compared to other options and service ending earlier than expected on the last day
Pros
- ✓ Allows tethering
- ✓ Offers unlimited data plans
- ✓ Top-up option
Cons
- • Covers Japan only
- • Doesn’t include traditional phone calls and texts
- • There’s no app
- • No 24/7 customer support
Best eSIM for Japan: comparison
| Provider | Countries covered | Starting price | Validity period | 24/7 customer support | Tethering | Unlimited data |
|---|---|---|---|---|---|---|
| Ubigi |
🌍 200+
|
$2.50 (for 500 MB) | 1 day | − No | ✓ Yes | ✓ Yes |
| Airalo |
🌍 200+
|
$4.50 (for 1 GB) | 7 days | ✓ Yes | ✓ Yes | − No |
| Jetpac |
🌍 150+
|
$4.00 (for 1 GB) | 4 days | ✓ Yes | ✓ Yes | − No |
| Saily |
🌍 150+
|
$3.79 (for 1 GB) | 7 days | ✓ Yes | ✓ Yes | − No |
| Holafly |
🌍 200+
|
$5.90 (unlimited data | 1 day | − No | ✓ Yes | ✓ Yes |
| eSIM Japan |
🌍 30
|
$6.99 (for 3 GB) | 7 days | ✓ Yes | ✓ Yes | ✓ Yes |
| Sakura Mobile |
🌍 1
|
$12.92 (for 1 GB) | 3 days | − No | ✓ Yes | ✓ Yes |
Frequently Asked Questions (FAQs)
Find helpful information to answer common questions about eSIMs in Japan
Which eSIM for Japan has the fastest speeds?
Which is better for your trip to Japan, an eSIM or a physical SIM card?
How do international roaming eSIMs differ from local eSIMs?
Why do I need an eSIM for Japan?
Using an eSIM in Japan brings a bunch of benefits such as:
- Best eSIMs offer a perfect combination of flexibility and affordability. The best eSIMs have various plans to pick from, ranging from country, regional, and global to even unlimited data plans. Also, eSIMs often have a “top-up option” where you can maintain uninterrupted internet without purchasing new cards.
- Getting an eSIM allows enjoying its benefits almost instantly. eSIMs are activated straight on your device in just a few simple steps. Plus, looking for stores and buying new SIM cards is unnecessary whenever you wish to change phone providers making eSIMs even more convenient.
- eSIMs are embedded in phones, so losing or getting them stolen is not an option. Moreover, unlike the physical SIM card, your eSIM cannot be damaged, so security is guaranteed throughout your trip.
- Generally, the prices that eSIM offers are lower than those of regular carriers. If you don’t plan on calling or messaging while in Japan, you can often purchase a plan that only gives access to the internet (with no calls or messages). This exclusivity will save up a bunch of money for you. Moreover, eSIMs eliminate all roaming fees you would experience in Japan.
- Combined access. One of the big benefits of eSIMs is the ability to access your regular SIM card while using an eSIM simultaneously. This functionality is particularly handy for everyone who wishes to keep their original phone number and combine it with eSIM’s functionalities.
Considerations for choosing an eSIM provider
If you are going to Japan and plan on using an eSIM there, pick a provider that meets your needs. Here is a list of several vital factors to consider:
- Price and plans. Mobile data abroad can become a big part of your spending if you don’t check for the providers that offer the best value for your money.
- Data requirements. Try estimating the amount of data that you will need during your stay. Most providers offer different amounts of data with plans as small as 1 GB which may be enough if you plan to spend less time online.
- Travel duration. Choose an eSIM plan that correlates with the length of your trip. This way you will avoid having to repurchase or top up your eSIM.
- Tethering capability. Tethering allows you to use your device as a mobile hotspot, which is especially handy for travelers in Japan who need to share their internet connection with others or connect multiple devices on the go.
- Ease of use and installation. Last, the ease of use that different eSIM providers offer and their suggested installation options should be checked before purchasing an eSIM. Many providers require reinstallation when jumping between the countries, so keep in mind if you’ll be leaving Japan in between too.
Comparison of eSIMs, SIM cards, and pocket Wi-Fi
Aside from eSIMs, there are other ways to stay connected online, including using local SIM cards and pocket Wi-Fi. Let’s explore the key differences between these three options.
- eSIMs are super convenient since you can activate them online without dealing with a physical card. They may be ideal if you’re hopping between countries because switching networks is quick and easy. The catch? You’ll need a compatible device, and they don’t always include calls or texts. Plus, coverage can be hit or miss depending on where you are.
- SIM card. Local SIM cards can be a great option if you’re staying in one country for a while — they’re usually quite affordable and provide excellent local coverage for calls, texts, and data. However, you’ll need to search for one at telecom shops, convenience stores, or airports, and the process might require ID. Also, since you’ll be swapping out your regular SIM, there’s also the risk of misplacing or losing it.
- Pocket Wi-Fi. This option can be convenient for groups since it lets multiple devices connect at once, and you can usually get unlimited data. It’s also great because you don’t have to touch your phone’s SIM. That said, lugging around another gadget, keeping it charged, and paying rental fees can get annoying, especially for longer trips.
To help you better understand the main pros and cons of using eSIMs, local SIM cards, and pocket Wi-Fi while traveling, here’s a summary in table format:
| Option | Pros | Cons |
| eSIM | ● Easy to activate online
● Ideal for multi-country travel ● No need to change the physical SIM card |
● Requires a compatible device
● May lack traditional calls and SMS ● Coverage and cost vary by region |
| SIM card | ● Reliable local coverage
● Great for longer stays in one country |
● Finding and buying one can take effort
● Risk of losing your main SIM ● Single-country use only |
| Pocket Wi-Fi | ● Supports multiple devices
● No need to replace SIM |
● Requires carrying and charging an extra device
● Rental costs can add up |
As you can see, each option has its advantages and drawbacks, so ultimately, the choice should depend on your personal travel needs.
Does my phone support eSIM
Although most of the newer phones already fully support eSIM technology, it’s a good idea to check if your phone supports eSIM before getting one for Japan. Check the breakdown for iOS and Android users.
eSIM compatibility on iPhone
Currently, Phone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2020), iPhone 12, 13,14 series, and all subsequent models up to the latest iPhone support eSIM technology.
eSIM compatibility on Android phone
A variety of Android smartphones support eSIM technology. The Android devices supporting eSIMs come from a different range of manufacturers, such as Google Pixel models, Samsung’s Galaxy series (particularly the Z Flip and Z Fold lines, and the S-series starting from the Galaxy S20 up to the latest models), as well as some Motorola, Huawei, Sony Xperia, Oppo, and Xiaomi models.
Final thoughts
To sum up, all of these eSIM providers can make staying connected in Japan seamless and hassle-free. Whether you prioritize wide coverage, high-speed data, simplicity in setup, or budget-friendly plans, there’s an option here that fits the bill.
Japan is a destination where reliable connectivity enhances every experience — navigating cities, sharing stunning views, or translating a menu on the fly. So take a moment to think about what matters most for your trip, and choose the eSIM that will let you explore with confidence and peace of mind. With the right choice, staying connected becomes one less thing to worry about, leaving you free to enjoy everything Japan has to offer.