One allowance, then 128 kbps
Your phone and hotspot use the same 12, 21 or 30 GB. Once it’s used up, speed drops to 128 kbps until the plan ends. Plans can’t be topped up.
Japan eSIM · Data Package
A set amount of fast data, for phone and laptop.
12 GB for 4 days, 21 GB for 7 days or 30 GB for 10 days, on KDDI (au). Phone and hotspot share the same data; once it’s used up, speed drops to 128 kbps.
12, 21 or 30 GBThen 128 kbpsHotspot includedShares the same data5G where available4G LTE elsewhere
What’s included
The whole plan, in one table.
Network, speed, hotspot and dates — the same terms you’ll see before you pay.
- 12 GB4 days
- 21 GB7 days
- 30 GB10 days
Full-speed dataThen 128 kbps
Full speed until the allowance is used up, then 128 kbps until the plan ends.
Example: a 5-day plan · days change at 00:00 Japan time
Home
1Land
234
523:59
Home
Installed, not countingFirst connection = day 1Active days
- Data
- 12 GB (4 days), 21 GB (7 days) or 30 GB (10 days) at full speed.
- After the data
- 128 kbps until the plan ends.
- Hotspot
- Included. Phone and hotspot share the same data.
- Speed
- 5G where available, otherwise 4G LTE. Fair Usage Policy applies.
- Network
- KDDI (au), as a Japanese local line. In Okinawa, the au network run by Okinawa Cellular.
- Day 1
- The day your eSIM first connects in Japan. Days change at 00:00 Japan time, not every 24 hours.
- Last day
- Ends at 23:59 Japan time (UTC+9).
- Start-by date
- Sent with your eSIM. If you haven’t connected by then, your days start on that date.
- Top-up or extension
- Not available. Please choose enough days.
- Calls and SMS
- Not included. This is a data-only eSIM: no phone number, calls, SMS or emergency calls.
- Installation
- Once, on one phone. A deleted eSIM can’t be reinstalled or moved to another phone.
- Provided by
- ROKKODE Inc., a telecommunications carrier in Japan, under its Japanese-language MVNO terms. Sold by Vision Factory LLC.
The fine print, upfront
What the big words mean here.
“Unlimited”, “5G” and “hotspot” each come with a limit. Here they are, right next to the promise.
Fair Usage Policy still applies
On every plan, the network’s Fair Usage Policy looks at your last 3 days; if use is judged excessive, speed may drop to about 1 Mbps for a while. The threshold isn’t published.
5G where available
5G works where your phone, its bands, the location and the network allow it. Elsewhere you’ll connect on KDDI’s 4G LTE. Speed and coverage vary with place, time of day and congestion.
Data only
No phone number, calls, SMS or emergency calls. Keep your home SIM for calls and texts, and use WhatsApp, iMessage or FaceTime over data.
Will my phone work?
Four things your phone needs.
Please check all four before you buy. Once your QR code is shown, the eSIM can’t be refunded.
Made for smartphones and tablets; routers and other devices aren’t guaranteed. Phones with the same name can differ by region, so check your exact model number.
Supports eSIM
Look for “eSIM” in your phone’s specifications.
Carrier-unlocked
On iPhone, Settings › General › About › Carrier Lock should say “No SIM restrictions”. Otherwise, ask your carrier.
LTE Band 18 or 26
The KDDI bands this line needs. Band 1 alone isn’t enough.
Allowed in Japan
Your phone must be permitted for use in Japan.
Compare plans
Three plans. One network.
Three ways to stay online in Japan. Every plan includes hotspot and runs on KDDI (au).
| Unlimited 5G | Unlimited 10 Mbps | Data PackageThis plan | |
|---|---|---|---|
| Phone data | Unlimited | Unlimited, up to 10 Mbps | 12, 21 or 30 GB, then 128 kbps |
| Speed | No speed cap · 5G where available | Up to 10 Mbps | Full speed · 5G where available |
| Hotspot | Days − 1 GB, then 128 kbps | Days − 1 GB, then 128 kbps | Shares the same data |
| Plan lengths | 3–21, 26 or 31 days | 3–10 days | 4, 7 or 10 days |
| Fair Usage Policy | Applies | Applies | Applies |
| From | |||
| View plan | View plan | Choose |
Prices in USD. Any taxes are calculated at checkout.
FAQ
Questions about this plan
How are the three plans different?
Unlimited 5G has no data cap and no speed cap on your phone. Unlimited 10 Mbps has no data cap, with speed up to 10 Mbps. A Data Package gives 12, 21 or 30 GB at full speed, shared by phone and hotspot; after that, speed drops to 128 kbps. The Fair Usage Policy applies to every plan.
Can I use hotspot?
Yes, on every plan. Unlimited 5G and Unlimited 10 Mbps include a hotspot total of days − 1 GB (2 GB on 3 days, up to 30 GB on 31 days); beyond it, hotspot runs at 128 kbps. A Data Package shares one total between phone and hotspot. Some Android phones need one extra APN setting for hotspot, and our setup guide shows how.
Will I get 5G everywhere?
You’ll connect on 5G where your phone, its bands and the local network support it. Everywhere else, you’ll connect on KDDI’s 4G LTE. Speed and coverage vary with location, time of day and congestion.
Will my phone work?
Your phone must support eSIM, be carrier-unlocked, support LTE Band 18 or Band 26 (Band 1 alone isn’t enough), and be allowed for use in Japan. The eSIM is made for smartphones and tablets; routers and other devices aren’t guaranteed. Phones with the same name can differ by region, so check your exact model number.
Can I get a refund or extend my plan?
Plans can’t be topped up or extended, so please choose enough days. Until you show your QR code or activation code on My Page, you can cancel for a full refund, even after our email has arrived. After that, refunds aren’t available. If the eSIM then won’t work in Japan, contact us and we’ll check and send a replacement eSIM. Replacements don’t cover phones that don’t meet the requirements, connection settings such as the APN that weren’t applied, or a deleted eSIM.
