Imagine landing in Tokyo after a long flight, eager to explore but struggling to connect your phone. Finding Wi-Fi or buying a local SIM can be stressful — that’s where Japan eSIMs come in.
These digital SIMs let you connect instantly without swapping cards or visiting a store. While Airalo is popular, travelers today have many strong alternatives that offer better pricing, flexible plans, and reliable coverage.
This guide introduces the 10 best Airalo alternatives for Japan travel eSIMs, including standout options like iRoamly Travel eSIM, to help you stay connected from the moment you arrive.
2. iRoamly
Key Features
iRoamly Travel eSIM is a fast-growing global provider offering seamless mobile data for international travelers. Designed with simplicity and affordability in mind, iRoamly offers reliable connectivity in over 150 countries, including Japan. The platform is known for its smooth user experience, automatic network switching, and transparent pricing — all with no hidden fees.
Data Plans and Pricing
iRoamly’s Japanese eSIM plans include daily, total, and unlimited plans . Its Japanese eSIM plans include 1GB of data (7 days, $1.80), unlimited data (3 days, $7.60).
Coverage and Connectivity
The iRoamly Japan eSIM connects via SoftBank and KDDI networks, ensuring high-speed 4G and 5G access throughout Japan. Whether you’re in Tokyo, Osaka, or Hokkaido, users report consistent data speeds and stable connections suitable for streaming, navigation, and social media.
Ease of Setup
Setting up iRoamly is straightforward: download the iRoamly app, select your Japan eSIM, scan the QR code, and activate. Within minutes, your device is ready to go. No local SIM swap is required, and you can manage your plan entirely from the app.
2. Sakura Mobile
Key Features
Sakura Mobile is one of Japan’s most recognized connectivity brands, trusted by both tourists and residents. Unlike global providers, Sakura Mobile specializes exclusively in Japan, offering SIM and eSIM plans designed specifically for visitors. The brand’s local focus means optimized service for the Japanese network and excellent English-language customer support. Travelers praise its fast LTE speeds and dependable connection throughout major cities and rural regions.
Data Plans and Pricing
Sakura Mobile offers flexible eSIM data plans, such as 5GB for 10 days at around $22.20,and 10GB for 15 days at $33.80.
Coverage and Connectivity
Sakura Mobile primarily operates on major Japanese networks. Users can expect excellent signal strength even in mountainous areas and remote islands.
Ease of Setup
After purchasing a plan online, you’ll receive a QR code to scan with your phone’s camera. Installation takes about 3–5 minutes, and data becomes active almost immediately. Make sure your phone is unlocked and eSIM-compatible before traveling.
3. GigSky
Key Features
GigSky is an established name in global roaming services, catering to both individual and business travelers. Their Japan eSIM options provide data without the hassle of swapping physical SIMs, and they’re supported on most major smartphone brands. GigSky emphasizes convenience, offering a user-friendly app for purchase, management, and top-up.
Data Plans and Pricing
GigSky’s Japan plans include 1GB for 7 days ($4.99), 5GB for 30 days ($16.99), and 10GB for 30 days ($26.39). The company frequently offers promotional rates and allows you to extend your data plan directly through the app, avoiding any service interruptions.
Coverage and Connectivity
GigSky partners with mainstream operators. Travelers report stable connections in both urban and rural locations, with minimal downtime during transit.
Ease of Setup
Simply download the GigSky app, sign in, and choose your destination. Once you purchase your Japan plan, a QR code is generated. Scan it on your device to activate the eSIM and start browsing within minutes.
4. Ubigi
Key Features
Ubigi is a global eSIM service provider operated by Transatel, offering coverage in over 200 destinations. Known for its premium service and clear pricing, Ubigi is a popular choice among business travelers heading to Japan. The brand emphasizes strong network reliability and 5G readiness for compatible devices.
Data Plans and Pricing
Ubigi offers a 1GB plan for 30 days ($4), 3GB for 15 days ($8), and 10GB for 30 days ($17). You can buy and manage plans through the Ubigi app, which supports instant top-up and multi-country management for those traveling across Asia.
Coverage and Connectivity
Ubigi connects to KDDI/ NTT Docomo, ensuring stable and fast speeds across Japan. Its performance is excellent in dense urban zones and transportation hubs, making it a strong option for business users or frequent travelers.
Ease of Setup
Install the Ubigi app, register your device, and add the Japan eSIM profile. Activation takes less than five minutes, and your plan begins as soon as you connect. Ubigi’s interface also provides live data tracking to help manage your usage efficiently.
5. Saily
Key Features
Saily is a relatively new yet rapidly growing eSIM provider focusing on simplicity and transparent pricing. Designed for tourists and digital nomads alike, Saily’s Japan eSIMs offer stable connectivity, clear setup instructions, and responsive support. The platform’s minimalist design makes it particularly beginner-friendly.
Data Plans and Pricing
Saily offers 1GB for 7 days ($3.99), 3GB for 30 days ($7.99), and 5GB for 30 days ($10.99). All plans are prepaid, and users can easily top up via the Saily website or app. No registration fees or hidden costs are involved.
Coverage and Connectivity
Saily cooperates with local network operators to provide stable and reliable Internet connection. Users report smooth video calls and quick web loading times throughout the trip.
Ease of Setup
To get started, simply scan the QR code emailed after purchase, install the eSIM, and activate your data connection. The whole process takes only a few minutes and requires no app download.
6. World eSIM
Key Features
World eSIM is an all-in-one travel data solution offering coverage in many countries, including dedicated regional plans for Asia and Japan. It’s particularly appealing for travelers visiting multiple destinations in one trip. The brand emphasizes flexible connectivity, no contracts, and easy online activation. Their Japan eSIMs are known for stable performance and competitive rates.
Data Plans and Pricing
World eSIM’s Japan plans include 3GB for 7 days ($6.90), 5GB for 15 days ($11.95), and 10GB for 30 days ($18.95). Plans are prepaid, and users can monitor or extend data directly through the World eSIM website or app. The platform also supports multi-country bundles, which are ideal for those visiting Japan alongside other Asian countries.
Coverage and Connectivity
World eSIM connects to both SoftBank and KDDI networks, offering wide national coverage. Users typically experience smooth 4G/5G performance with strong signal reliability even in regional or rural zones.
Ease of Setup
Setup is quick and digital. After purchasing, you’ll receive a QR code via email. Simply scan the code, install the eSIM, and activate your data connection. No app is required, and your plan starts once you’re connected.
7. Holafly
Key Features
Holafly is one of the most popular eSIM providers among international travelers due to its unlimited data offerings. For Japan visitors who stream, navigate, or upload frequently, Holafly’s simplicity and strong network coverage make it a top Airalo alternative. The brand focuses on customer-friendly service and offers 24/7 multilingual support.
Data Plans and Pricing
Holafly’s Japan eSIM plans include unlimited data for 5 days ($19.50), 7 days ($27.30) and 30 days ($74.90). While Holafly’s prices are slightly higher than others, the unlimited usage justifies the cost for heavy data users.
Coverage and Connectivity
Holafly partners with SoftBank and KDDI, ensuring stable 4G LTE / 5G speeds throughout Japan. Travelers report reliable service in major tourist destinations, including Tokyo, Osaka, Kyoto, and Okinawa. The unlimited plan makes it convenient for navigation, social media sharing, and video calls without worrying about data caps.
Ease of Setup
Once you purchase, Holafly instantly emails your QR code. Scan it with your device and activate mobile data — no ID registration or app required. The process takes only a few minutes, making it ideal for travelers who want immediate access upon arrival.
8. Nomad
Key Features
Nomad is a global eSIM provider known for its user-friendly app and affordable data packages. It caters to tech-savvy travelers who want flexibility and control over their plans. Nomad’s Japan eSIM options are designed for tourists, offering reliable connectivity and convenient app-based management.
Data Plans and Pricing
Nomad’s Japan plans start at 1GB for 7 days ($6), 3GB for 30 days ($8), 5GB for 30 days ($11), and 10GB for 30 days ($17). All plans are prepaid, and you can easily top up through the Nomad app, which also displays real-time data usage.
Coverage and Connectivity
Nomad partners with KDDI (au) and SoftBank, two of Japan’s most reliable networks. The coverage is excellent across all major cities and most rural regions, ensuring seamless access to navigation and streaming.
Ease of Setup
Download the Nomad app, create an account, and purchase your Japan eSIM. You’ll receive a QR code instantly, which can be scanned and activated in less than five minutes. The app also allows easy recharges and plan management.
9. Jetpac
Key Features
Jetpac is a newer entrant in the eSIM market but is quickly gaining attention for its fast connection speeds and budget-friendly pricing. The platform’s Japan eSIMs are designed for travelers seeking dependable data without complex setup steps. Jetpac also includes simple plan tracking and transparent pricing — no hidden fees.
Data Plans and Pricing
Jetpac offers 1GB for 4 days ($1.00), 5GB for 30 days ($10.00), and 10GB for 30 days ($13.99). Plans are valid immediately upon activation, and you can top up from the Jetpac dashboard or app.
Coverage and Connectivity
Jetpac’s Japan eSIM connects through KDDI Corporation and Rakuten networks, ensuring stable high-speed data across Japan. Travelers note strong performance even when commuting on high-speed trains or exploring rural regions.
Ease of Setup
The Jetpac setup process is simple: buy your eSIM online, scan the QR code, and connect. Activation takes less than two minutes, making it one of the quickest options for travelers arriving in Japan.
10. Roamless
Key Features
Roamless is an innovative global eSIM provider that combines AI-driven connectivity with real-time pricing optimization, allowing travelers to always get the best available rates.The brand’s app-centered ecosystem lets you manage all your trips and data usage seamlessly, with transparent billing and live tracking. Roamless also supports both personal and business accounts, making it suitable for casual tourists as well as professionals traveling to Japan.
Data Plans and Pricing
Roamless operates on a usage-based system rather than fixed data packages. This flexible model means you only pay for what you use, avoiding wasted data.At the same time, it also provides fixed data, such as 2GB for 30 days ($6.45).You can top up funds directly through the Roamless app via credit card or Apple Pay, and your eSIM balance updates instantly.
Coverage and Connectivity
Roamless connects dynamically to Japan’s top carrier —— KDDI, ensuring premium network performance across the country. The automatic network-switching feature guarantees a stable and fast connection whether you’re in dense city centers like Tokyo and Osaka or exploring more remote locations such as Nagano or Okinawa.
Ease of Setup
Getting started with Roamless is effortless. Download the Roamless app, register, and follow the prompts to install your eSIM. Once installed, your device connects automatically — no need to choose a specific plan or scan multiple QR codes. The app also provides real-time usage analytics and alerts when your balance is low.
FAQ
1. Do Japan eSIMs include phone calls or SMS?
Most Japan eSIMs, including iRoamly and Airalo, are data-only plans. However, you can still make calls or send messages using internet-based apps such as WhatsApp, LINE, or Skype.
2. How can I top up or extend my data plan while traveling?
Most providers, like iRoamly, Nomad, and Ubigi, allow instant top-ups through their website or app. Your plan updates automatically without reinstalling the eSIM.
3. Can I use the same eSIM for other countries after Japan?
Some providers, like iRoamly Travel eSIM and World eSIM, offer regional or global plans, allowing you to stay connected as you move between destinations without switching eSIMs.
4. Is it safe to buy and install eSIMs online?
Yes. All major providers listed in this article use secure payment systems and encrypted eSIM profiles. Just make sure to purchase directly from official websites or apps.
5. What should I do before installing a Japan eSIM?
Ensure your phone is unlocked, back up your current SIM settings, and have a stable Wi-Fi connection to download and activate your eSIM successfully.
Conclusion
When traveling to Japan, choosing the right eSIM is essential for staying connected. Whether you’re visiting for a short time or an extended stay, a reliable Japan eSIM can enhance your experience, whether you’re navigating the cities or exploring rural areas.
Options like the iRoamly Travel eSIM and other alternatives to Airalo offer competitive pricing, flexible data plans, and easy activation.
By selecting an eSIM that fits your needs, you can enjoy uninterrupted connectivity and make the most of your trip to Japan, from urban adventures to scenic escapes.
