eSIM for Japan

Roamify Japan eSIM

4.2 out of 5 review rating, from(310 reviews)Global reseller38 plans from $1.97

38 plans on au. 5 GB for a week from US$11.00. Prices checked .

Is Roamify good for Japan?

Roamify runs on au, strong in all 10 areas on our coverage map, with good 4G at all 28 rural and mountain places. A week with 5 GB costs US$11.00, the 36th cheapest of the 60 providers with a week plan. 5G on every plan. Hotspot allowed. 28 unlimited plans, 1 of them with 1 GB a day at full speed. Review rating 4.2 out of 5 from 310 customer reviews. How we rank Roamify.

Japan plans

DataPriceCompare
10 GB
4 days
10 GB at full speed, then data stops
$8.00
12 GB
4 days
12 GB at full speed, then data stops
$8.50
18 GB
7 days
18 GB at full speed, then data stops
$11.00
20 GB
21 days
20 GB at full speed, then data stops
$20.00
21 GB
7 days
21 GB at full speed, then data stops
$12.00
27 GB
10 days
27 GB at full speed, then data stops
$16.00
30 GB
10 days
30 GB at full speed, then data stops
$17.00
100 GB
30 days
100 GB at full speed, then data stops
$65.00
200 GB
30 days
200 GB at full speed, then data stops
$72.00
300 GB
30 days
300 GB at full speed, then data stops
$75.00
Unlimited: No daily cap, fair-use policy applies, on 25 of 28 plans
Unlimited
1 day
1 GB a day at full speed, then 5 Mbps
$1.97
Unlimited
2 days
Slows to 5 Mbps after a usage limit
$3.47

Roamify speed and data rules

Roamify data rules by plan type
Data at full speedWhen it runs outPlans
UnlimitedNo daily cap, fair-use policy applies25 plans
10 to 300 GBData stops10 plans
1 GB a daySlows to 5 MbpsHD video1 plan
UnlimitedSlows to 5 Mbps after a usage limitHD video1 plan
UnlimitedData stops after a usage limit1 plan

Roamify: “Full speed up to 1 GB, then reduced to 5 Mbps.” Source

Roamify ratings from customer reviews

310 reviews: 186 on Google Play, 72 on Trustpilot and 52 on the App Store, written 13 Dec 2023 to 13 Nov 2026. 12 of them are about a trip to Japan. Each rating needs at least 10 reviews that mention it.

Review rating4.2 out of 5The mean of the ratings below

Roamify ratings by aspect
AspectRatingReviews that mention it
Speed3.9 out of 516 reviews
Coverage4.0 out of 569 reviews
Setup4.2 out of 5100 reviews
Support4.5 out of 5117 reviews
Value4.4 out of 549 reviews
App4.4 out of 568 reviews
Data problems1.6% of reviews5 of 310 reviews report one
Refund problems0.0% of reviews0 of 310 reviews report one

Roamify speed tests in Japan

No published speed tests of Roamify in Japan.

How fast this network is for their own customers

Ookla's median speeds for people on each network's own plans, H1 2026 unless marked.

  • KDDI (au)
    Download
    67.85 Mbps
    Time on 5G
    48.8%
Ookla speeds for each network's own customers
NetworkDownload5G downloadTime on 5GLatency
KDDI (au)67.85 MbpsNot published48.8%Not published

Sources: Ookla Speedtest Connectivity Report H1 2026 via TelecomLead, 17 Sept 2026.