eSIM for Japan

Wanderly Japan eSIM

Not enough reviewsGlobal reseller39 plans from $2.87

39 plans on Docomo and au. 5 GB for a week from US$5.99. Prices checked .

Is Wanderly eSIM good for Japan?

Wanderly eSIM runs on Docomo and 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$5.99, the 13th cheapest of the 60 providers with a week plan. Hotspot allowed on some plans. How we rank Wanderly eSIM.

Japan plans

DataPriceCompare
502 MB
1 day
$2.99
1 GB
1 day
1 GB a day at full speed, then 1 Mbps
$2.87
1 GB
7 days
$2.99
2 GB
1 day
2 GB a day at full speed, then 1 Mbps
$3.83
2 GB
15 days
$3.99
3 GB
1 day
$4.79
3 GB
3 days
$3.99
3 GB
15 days
$3.99
3 GB
30 days
$4.99
5 GB
1 day
$6.71
5 GB
3 days
$4.99
5 GB
5 days
$4.99

Wanderly eSIM speed and data rules

Wanderly eSIM data rules by plan type
Data at full speedWhen it runs outPlans
1 GB a daySlows to 1 MbpsBrowsing and music, not HD video1 plan
2 GB a daySlows to 1 MbpsBrowsing and music, not HD video1 plan
502 MB to 50 GBWanderly eSIM doesn't say34 plans
3 GB a dayWanderly eSIM doesn't say1 plan
5 GB a dayWanderly eSIM doesn't say1 plan
10 GB a dayWanderly eSIM doesn't say1 plan

Wanderly eSIM: “an unlimited label does not promise unlimited high-speed data.” Source

Wanderly eSIM ratings from customer reviews

34 reviews: 27 on Trustpilot, 6 on the App Store and 1 on Google Play, written 7 Aug 2026 to 13 Nov 2026. 0 of them are about a trip to Japan. Each rating needs at least 10 reviews that mention it.

Wanderly eSIM ratings by aspect
AspectRatingReviews that mention it
SpeedNot enough reviews3 reviews
CoverageNot enough reviews1 review
SetupNot enough reviews9 reviews
SupportNot enough reviews0 reviews
ValueNot enough reviews8 reviews
AppNot enough reviews6 reviews
Data problems5.9% of reviews2 of 34 reviews report one
Refund problems0.0% of reviews0 of 34 reviews report one

Wanderly eSIM speed tests in Japan

No published speed tests of Wanderly eSIM in Japan.

How fast these networks are for their own customers

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

  • NTT Docomo
    Download
    50.5 MbpsQ3 2025
    Time on 5G
    51.4%
  • KDDI (au)
    Download
    67.85 Mbps
    Time on 5G
    48.8%
Ookla speeds for each network's own customers
NetworkDownload5G downloadTime on 5GLatency
NTT Docomo50.5 MbpsQ3 2025Not published51.4%Not published
KDDI (au)67.85 MbpsNot published48.8%Not published

Sources: Ookla Speedtest Connectivity Report H1 2026 via TelecomLead, 17 Sept 2026; Ookla Speedtest Intelligence Q3 2025 via TelecomsTechNews, 15 Dec 2025.