Are you considering the Rakuten Mobile’s Rakuten SAIKYO Plan for your phone service in Japan? With unlimited high-speed data and competitive pricing, it’s an appealing option. However, there are some potential downsides, such as signal reliability and limited English support.
In this guide, we’ll dive into the plan’s features, advantages, drawbacks, and more. Plus, we’ll compare it to the alternatives to help you decide if it’s the right choice for you.
Related article
If you’re interested in the best SIM cards and phone plans in Japan, check out this article!
Table of contents
- Overview of Rakuten Mobile SAIKYO Plan
- Understanding Rakuten Mobile SAIKYO Plans and Fees
- Advantages of Using Rakuten SAIKYO
- Disadvantages of Using Rakuten SAIKYO
- How to Get Started
- Comparison with Other Carriers
- English Support
- Simple Phone Plans with Sakura Mobile
1. Overview of Rakuten Mobile SAIKYO Plan
Rakuten Mobile’s Rakuten SAIKYO Plan is a cost-effective mobile plan from Rakuten Mobile, inc., launched in June 2023. It offers unlimited high-speed data with 99.9% 4G coverage nationwide, including both Rakuten’s network and partner areas.
This is the most powerful plan offered by Rakuten so far.
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URL | https://network.mobile.rakuten.co.jp/fee/saikyo-plan/en/ |
Plans | Rakuten SAIKYO Plan |
Network | In Rakuten area: Rakuten network is used Outside Rakuten area: au network is used |
Contract Period | None |
Administrative Fee | None |
Tethering/Hotspot | Yes |
English Support | Limited |
Speed Limit | Unlimited (Fair usage policy may apply) |
Avg. Network Connection Speed | Upload: 38.86 Mbps Download: 169.92 Mbps |
Campaign information | SAIKYO FAMILY: ¥110 off monthly SAIKYO SENIOR Program: UP to 1,210 point rebates monthly SAIKYO YOUTH Program: Up to ¥440 off monthly SAIKYO KIDS Program: |
**Speed may be restricted due to fair service provision during peak times and other conditions.
Looking for a phone service with full English support?
Check out Sakura Mobile’s plans for hassle-free communication in Japan!
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2. Understanding Rakuten Mobile SAIKYO Plan and Fees
Data Charges

Call Charges
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Using Rakuten Link App | Using Standard Android Phone App | ||
---|---|---|---|
Outgoing Call Charges | Rakuten Link to Rakuten Link | Free | - |
From Japan to Japanese numbers | ¥20 (¥22 tax incl.)/30 sec | ||
From Overseas to Japanese numbers | Country/Region Rates | ||
Incoming Call Charges | In Japan | Free | Free |
Overseas | Country/Region Rates |
For iOS users: Calls can only be received through the standard iOS phone app, not with the Rakuten Link App.
Texting and SMS Charges
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Using Rakuten Link App | Using Standard Android Phone App | ||
---|---|---|---|
SMS Sending Charges | Rakuten Link to Rakuten Link | Free | - |
From Japan to Japanese numbers | Charges Apply | ||
From Overseas to Japanese numbers | |||
Incoming Call Charges | In Japan | Free | *1, *2 |
Overseas |
*1 Android Users: Free with the standard Android Messaging app, receiving messages is restricted to eligible countries and regions outside Japan
*2 iOS users:Free with standard iOS Messaging app, receiving messages is restricted to eligible countries and regions outside Japan.
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🌸Sakura Mobile provides reliable SIM and eSIM options on docomo’s fast network!📱⚡
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3. Advantages of using Rakuten SAIKYO
- Unlimited High-Speed Data: Enjoy unlimited high-speed data usage across Japan’s nationwide network, ensuring seamless connectivity without worrying about data limits.
- Affordable Pricing with Discounts and Campaigns: Benefit from competitive pricing, starting at ¥968 (including tax) for up to 3GB of data. Plus, discounts through various programs.
- Rakuten Points and Entertainment Perks: Earn 1 point for every ¥100 spent on Rakuten services and access exclusive entertainment benefits like discounts on Rakuten Drive and Rakuten TV.
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4. Disadvantages of Using Rakuten SAIKYO
- Limited English Support: Although Rakuten provides some customer support in English, it is limited.
- Signal Strength and Coverage: Users have reported that Rakuten Mobile’s signal strength can be inconsistent, particularly in rural areas, subways, and certain indoor locations. Some customers have experienced frequent connectivity issues and service dropping.
- Data Usage Limitations: Rakuten has an unlimited plan, but it is subject to Japan’s Fair Usage Policy. Speeds may be restricted during peak hours and other conditions.
- Dependence on the Rakuten App: To enjoy free domestic calls, users must use the Rakuten Link app. This requirement adds an extra step to making calls and may not integrate seamlessly with the default phone app, potentially affecting user convenience.
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5. How to Get Started
Gather Required Documents:
- Identity verification documents
- Rakuten Member ID and Password
- Credit card and bank information
*If you are switching from another service provider, you need to acquire an MNP from your current provider.
Choose Your Smartphone:
- ✅Ensure your device is compatible with Rakuten SAIKYO.
- ✅Ensure your phone is SIM unlocked.
- 💳Purchase a new smartphone if necessary.
Apply Through Preferred Method:
- 💻Online
- 📞Phone (in Japanese only)
- 🏬Shop: Go in person to any shop.
Complete Initial Setup and Start Using!
Upon receiving your order, proceed with the initial setup for the product.
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6. Comparison with Other Carriers
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Monthly fee | 3GB: 1,078 JPY Unlimited: 3,278 JPY | 3GB: 2,167 JPY Unlimited: 7,315 JPY | 3GB: 4,400 JPY Unlimited: 7,425 JPY | 5GB: 3,278 JPY 40GB: 5,478 JPY |
Network | Rakuten Mobile | docomo | SoftBank | docomo |
Coverage | 99% | 99% | 99% | 99% |
English support | Limited | Full English Support | Limited | Full English support |
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7. English Support
In Person Stores: Rakuten offers English-language materials, including Important Notice and application forms. They also provide a Point-and-Speak phrase sheet for easier communication.
Over Phone: They provide English support over the phone for their customers, though to a limited extent. The conversation might take place as a three-way call with you, their customer service staff, and a phone interpreter.
Sakura Mobile: Your Reliable Choice for English-Supported Service!
With comprehensive English support and seamless connectivity on the docomo network, Sakura Mobile ensures a hassle-free experience in Japan.
Click here to sign up today and enjoy stress-free service with full English assistance!
Simple Phone Plans in Japan with Sakura Mobile
If you’re looking for a simple, flexible phone plan with comprehensive English support and an established network reliability, consider Sakura Mobile’s SIM and eSIM plans.
Sakura Mobile provides full English-language support, including assistance with plan selection and customer service.
We operate as an MVNO on the docomo network, so we provide extensive coverage and reliable service, ensuring consistent connectivity across Japan.
Related article
If you’re interested in the best SIM cards and phone plans in Japan, check out this article!