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Japan Unlimited
Japan Unlimited eSIM: Stay Connected Without Data Cutoffs
Shinjuku Station, rush hour, and your map freezes because the data plan you budgeted so carefully just ran dry. That stomach-drop moment is exactly what the Japan Unlimited eSIM prevents. With eSIMno, your connection slows after the daily quota but never disappears—so you always reach your platform, your hotel, your next step.
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Unlimited data for your trip of 3 days
Japan Mobile Unlimited
PLAN TYPE UNLIMITED
COVERAGE Japan
DATA Unlimited
VALIDITY 1 Day
PRICE ₺519.00
Japan Mobile Unlimited
PLAN TYPE UNLIMITED
COVERAGE Japan
DATA Unlimited
VALIDITY 3 Day
PRICE ₺1099.00
Japan Mobile Unlimited
PLAN TYPE UNLIMITED
COVERAGE Japan
DATA Unlimited
VALIDITY 5 Day
PRICE ₺1499.00
Japan Mobile Unlimited
PLAN TYPE UNLIMITED
COVERAGE Japan
DATA Unlimited
VALIDITY 7 Day
PRICE ₺1699.00
1 GB of high-speed data every day. Once it is used the speed drops to 128 Kbps, but your connection is never cut off. Data only — no phone number. These lines cannot be refilled — when the validity ends the line is closed.
NETWORK: Softbank Depending on the plan you choose, you'll connect to one or more of these networks.
Quick Facts
- Plan Type
- Unlimited data (fair use)
- Coverage
- Japan
- Validity
- 1, 3, 5, or 7 days
- Networks
- Softbank
- Daily High-Speed Data
- 1 GB, then 128 Kbps
- Activation
- Scan QR code and enable data roaming
- Top-up
- Not available
- Phone Number
- None (data only)
How to Get Your eSIM
- Purchase and receive your QR code
Complete your order and your eSIM QR code arrives by email within minutes. You can install it before you leave home. - Scan and install the eSIM
On your eSIM-compatible device, go to Settings > Mobile Data > Add eSIM and scan the QR code. Label it for easy identification. - Arrive in Japan and activate
Once you land, enable data roaming on your new eSIM line. Your connection begins immediately on the Softbank network. - Manage your daily allowance
Use your 1 GB of high-speed data as needed. If you exceed it, the connection continues at 128 Kbps until the next reset.
How the Unlimited Plan Works
Each day, you receive 1 GB of high-speed data on the Softbank network. Use it for navigation, uploads, video calls, or anything else that needs fast connectivity. Once that 1 GB is gone, your speed drops to 128 Kbps for the remainder of the day.
At 128 Kbps, you can still load Google Maps, send WhatsApp messages, check email, and browse text-heavy websites. You cannot stream video, make smooth video calls, or upload large files—the speed simply will not support it. This is the honest trade-off: you sacrifice full speed for the guarantee that your connection never disappears.
The daily allowance resets at midnight UTC+8. That is a fixed moment in UTC, not midnight where you are, so check your phone's UTC offset if you plan around it. When your plan's validity period ends, the line closes permanently. There is no option to refill or extend—you would need to purchase a new eSIM for continued service.
Navigate Without Anxiety
Is This Plan Right for You?
The Japan Unlimited eSIM fits you if your main concern is staying connected no matter what. Travellers who have run out of data mid-trip before understand the value of a plan that slows down but never cuts off. If you primarily use your phone for navigation, messaging, and light browsing—and you want the mental freedom of not monitoring a data counter—this plan removes that anxiety.
This plan does not fit you if you need sustained high-speed data throughout the day. Video streaming, large cloud uploads, or hours of video calling will exhaust the 1 GB quota quickly, and 128 Kbps will not support those activities comfortably. If your trip exceeds 7 days, this family also will not cover you—the longest available validity is one week. For longer trips or heavier daily data needs, explore the Japan for standard data plans with extended validity options.
Traveller Tips
- Download offline maps for Tokyo, Osaka, and Kyoto before departure—they work even at reduced speed and save your high-speed quota for real-time updates.
- Queue large photo uploads or cloud backups for when you have hotel Wi-Fi, preserving your 1 GB daily allowance for on-the-go use.
- Japan's train systems are complex—keep Hyperdia or Google Maps accessible for transfers, which remain usable even at 128 Kbps.
- Set your phone to show UTC time in the world clock so you can estimate when your daily quota resets without guessing.
- This is a data-only eSIM with no phone number—use WhatsApp, LINE, or other messaging apps for communication rather than expecting SMS.
- If your trip is longer than 7 days, plan to purchase your next eSIM before the current one expires—there is no top-up option.
Compare Connectivity Options for Japan
 Recommended | Local SIM / Operator | Roaming | |
|---|---|---|---|
| FEATURES | |||
| Setup time | Few minutes | Counter pickup or pre-order by post | Auto |
| No local ID needed | Online checkout | Passport scan since April 2026 | Use home account |
| Speed | 4G/LTE on KDDI + Softbank; 5G in some areas | Carrier-grade | Partner-dependent |
| Travel support | English support 24/7 | Japanese-language service | Home carrier hours |
| Keep home number | Dual SIM | Data-only: no Japanese number | Same number |
| Cost predictability | Fixed price | Prepaid, fixed term | Bill-shock risk |
Frequently Asked Questions (FAQs)
Your connection continues at 128 Kbps for the rest of the day. This reduced speed supports maps, messaging, and email but is too slow for video streaming or video calls. You are never cut off entirely.
The daily allowance resets at midnight UTC+8. That is a fixed moment in UTC, not midnight where you are, so check your phone's UTC offset if you plan around it.
No. The Japan Unlimited eSIM cannot be refilled or topped up. When your validity period ends, the line closes and you would need to purchase a new eSIM for continued service.
Yes. At 128 Kbps, Google Maps loads more slowly but remains functional for turn-by-turn navigation. Pre-downloading offline maps helps it perform better at reduced speed.
No. This is a data-only eSIM with no phone number, no voice calls, and no SMS capability. Use internet-based apps like WhatsApp, LINE, or Skype for communication.
The longest Unlimited plan available is 7 days. For longer trips, you can purchase an additional eSIM when your current one expires, or consider a standard data plan with extended validity.
Travel Blog
The Japan Unlimited eSIM delivers 1 GB of high-speed data every day. Once you use that allowance, your speed drops to 128 Kbps for the rest of the day—slow, but still functional for maps, messaging, and email. The connection is never cut off. This is data only: there is no phone number, no voice calls, and no SMS. The daily allowance resets at midnight UTC+8; that is a fixed moment in UTC, not midnight where you are, so check your phone's UTC offset if you plan around it.
This plan fits travellers who have been burned by a hard data cap before and want the security of knowing they will never lose signal entirely. If you stream video, make VoIP calls, or upload large files throughout the day, the post-quota speed will not support those activities—128 Kbps is genuinely slow. For heavy or unpredictable data use, a larger fixed-data plan may serve you better. But if your priority is guaranteed connectivity for navigation and communication, this family delivers exactly that.
The longest Unlimited plan available is 7 days. If your trip is longer, you will need to purchase a new eSIM when your validity ends—top-ups are not available on this line. For extended stays or trips requiring more daily high-speed data, standard data plans offer longer validity windows. The Unlimited family is built for short trips where peace of mind matters more than raw throughput.
