Google Fi roaming in Japan: what it costs, and when an eSIM is cheaper
Data in Japan is included with Unlimited Premium. Otherwise, it costs $10.00/GB (Unlimited Premium). An eSIM for 7 days and 6 GB costs from $12.99 (GoMoWorld).
The best eSIMs in Japan for a week
For 7 days and 6 GB
- 1Best unlimited
PlanJapan
Japan specialistUnlimited · 7 days
$33.00$4.71 per day- No daily cap announced
- Network: NTT Docomo
- Hotspot up to 10 GB a day
- 2Cheapest
GoMoWorld
14 GB · 30 days
$12.99$0.93 per GB- Lowest total price for 7 days
- Hotspot allowed
- 3Best price per GB
Orange Travel
20 GB · 14 days
€14.99€0.75 per GB- Lowest price per GB for this trip
- Networks: NTT Docomo, KDDI (au), SoftBank, and Rakuten Mobile
- Hotspot allowed
Three steps, three questions: the best unlimited plan, the cheapest and the best price per GB, from three different providers. How we pick the podium · Affiliate links
Google Fi or an eSIM in Japan: our verdict
Depending on your plan and trip length, at the prices read on October 22, 2026.
If your plan includes Japan
Keep Google Fi
With Unlimited Premium, data in Japan is included at no extra cost, within your allowance abroad.
Otherwise, with Google Fi
$10.00/GB
Unlimited Premium. For 7 days and 6 GB, expect $60.00.
With an eSIM, 7 days and 6 GB
$12.99
Today’s lowest price, from GoMoWorld. That’s $47.01 less than Google Fi’s rate.
See the planAffiliate links
Data in Japan with Google Fi: our analysis
What Google Fi’s rate sheet and eSIM prices show, as checked on October 22, 2026.
The right pass for your trip length
- 3 days3 × Unlimited Premium$30.00
- 1 week6 × Unlimited Premium$60.00
- 2 weeks12 × Unlimited Premium$120.00
- 1 month24 × Unlimited Premium$240.00
Against the cheapest eSIM
The cheapest eSIM costs less, whatever the length of stay.
- 3 dayseSIM$4.99Google Fi$30.00
- 1 weekeSIM$12.99Google Fi$60.00
- 2 weekseSIM$12.99Google Fi$120.00
- 1 montheSIM$24.99Google Fi$240.00
eSIMs in Japan at a glance
- In Japan, we compare plans from 8 eSIM providers: GigSky, GoMoWorld, Jetpac, Nomad, Orange Travel, PlanJapan, Ubigi, and Yesim.
- The cheapest unlimited plan for a week is from PlanJapan: $33.00 (Unlimited · 7 days).
- Locally, the cheapest prepaid SIM card for a week costs ¥2,980 excl. tax (IIJmio, 6 GB, 30 days); see our SIM card comparison in Japan.
- A pocket WiFi rents from ¥5,280 a week (eConnect Japan); see pocket WiFi rental in Japan.
Google Fi applies the same rate in 21 other destinations we track, including Australia, China, Egypt, France, and Greece.
Plan by plan
What applies in Japan depending on your Google Fi plan.
What Google Fi’s official rate sheet sets out in Japan, offer by offer. “Included” means at no extra cost, within your allowance abroad: your Google Fi account shows the one on your line.
| Plan or offer | Data in Japan | Good to know |
|---|---|---|
| Unlimited Premium: data included (up to 50GB per person at high speed, then 256 Kbps); Flexible: USD 10/GB (up to 15GB per person at high speed) | $10.00/GB | Destination is on the Fi international coverage list. Unlimited Standard and Unlimited Essentials: not available outside Canada and Mexico. Calls USD 0.20/min; texts free. |
| Unlimited Premium | Included | Included: up to 50GB per person at high speed, then 256 Kbps |
| Flexible | $10.00/GB | Data billed per GB (up to 15GB per person at high speed, then 256 Kbps) |
What your trip costs
With the Google Fi roaming rate, against today’s cheapest eSIM, for everyday use.
| Trip | With Google Fi | Cheapest eSIM | The offer |
|---|---|---|---|
| 3 days · 3 GB | $30.00 3 × Unlimited Premium | $4.99 GoMoWorld | See the plan |
| 7 days · 6 GB | $60.00 6 × Unlimited Premium | $12.99 GoMoWorld | See the plan |
| 14 days · 12 GB | $120.00 12 × Unlimited Premium | $12.99 GoMoWorld | See the plan |
| 30 days · 24 GB | $240.00 24 × Unlimited Premium | $24.99 GoMoWorld | See the plan |
Affiliate links
Japan with other US carriers
The same trip with the other US carriers we track, from their official rate sheets.
All 4 US carriers we track include Japan in at least one plan: AT&T, Google Fi, T-Mobile, and Verizon.
AT&T
T-Mobile
VerizonTurn off Google Fi roaming and use an eSIM
Four settings, before you leave or on the plane.
- 1
Install the eSIM at home
Buy it and scan its QR code before you leave: with most providers, the plan only starts when you first connect at your destination.
- 2
Keep Google Fi for calls
In your settings, keep your Google Fi line for calls and texts, and pick the eSIM for mobile data.
- 3
Turn off Google Fi roaming
On iPhone: Settings › Cellular › your Google Fi line › Data Roaming. On Android: Settings › Mobile networks › Roaming.
- 4
Keep eSIM roaming on
A travel eSIM uses the local networks: its data roaming must stay on.
Google Fi roaming in Japan: your questions
Answered from the Google Fi price guide and today’s prices.
Is data in Japan included in my Google Fi plan?
Yes, with Unlimited Premium. Otherwise, it costs $10.00/GB (Unlimited Premium).
How much does data cost in Japan with Google Fi?
$10.00/GB (Unlimited Premium), so $60.00 for 7 days and 6 GB. An eSIM covering the same week costs from $12.99 (GoMoWorld), checked on October 22, 2026.
Which Google Fi pass should I get for Japan?
The best Google Fi option depends on how long you stay: for 3 days, 3 × Unlimited Premium ($30.00); for a week, 6 × Unlimited Premium ($60.00); for two weeks, 12 × Unlimited Premium ($120.00); for a month, 24 × Unlimited Premium ($240.00).
Google Fi or an eSIM in Japan: which is cheaper?
Against today’s cheapest eSIM, Google Fi costs more whatever the length of stay: for a week, $12.99 for the eSIM against $60.00 with Google Fi; for a month, $24.99 for the eSIM against $240.00 with Google Fi.
Which US carriers include Japan?
All 4 US carriers we track include Japan in at least one plan: AT&T, Google Fi, T-Mobile, and Verizon.
Which network does an eSIM use in Japan?
Depending on the plan, the 8 providers we compare in Japan list NTT Docomo, SoftBank, KDDI (au), and Rakuten Mobile.
How do I avoid roaming charges in Japan?
Use a travel eSIM for data and turn off data roaming on your Google Fi line. You keep your number for calls and texts.
Can I keep my Google Fi number with an eSIM?
Yes, on an eSIM-compatible phone: your Google Fi line stays on for calls and texts while the eSIM carries the data.
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