eSIM for Japan

abesteSIM Japan eSIM

3.8 out of 5 review rating, from(33 reviews)Global reseller37 plans from $0.23

37 plans on Docomo. 5 GB for a week from US$3.46. Prices checked .

Is abesteSIM good for Japan?

abesteSIM runs on Docomo, 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$3.46, the 3rd cheapest of the 60 providers with a week plan. 5G on some plans. 2 unlimited plans. Review rating 3.8 out of 5 from 33 customer reviews. How we rank abesteSIM.

Japan plans

DataPriceCompare
1 GB
3 days
$0.46
1 GB
5 days
$1.19
1 GB
7 days
$1.71
1 GB
10 days
$1.45
1 GB
15 days
$1.55
1 GB
30 days
$1.67
3 GB
3 days
3 GB at full speed, then 128 kbps for the rest of the plan
$1.96
3 GB
5 days
3 GB at full speed, then 128 kbps for the rest of the plan
$2.05
3 GB
7 days
3 GB at full speed, then 128 kbps for the rest of the plan
$2.49
3 GB
7 days
$3.23
3 GB
10 days
3 GB at full speed, then 128 kbps for the rest of the plan
$3.12
3 GB
15 days
3 GB at full speed, then 200 kbps for the rest of the plan
$2.45

abesteSIM speed and data rules

abesteSIM data rules by plan type
Data at full speedWhen it runs outPlans
3 to 5 GBSlows to 128 kbps for the rest of the planMessages and maps only9 plans
500 MB a daySlows to 128 kbpsMessages and maps only4 plans
1 GB a daySlows to 128 kbpsMessages and maps only3 plans
2 GB a daySlows to 128 kbpsMessages and maps only2 plans
3 GB a daySlows to 128 kbpsMessages and maps only2 plans
1 GB a daySlows to 256 kbpsMessages, maps and slow web pages, no video2 plans
500 MB a daySlows to 200 kbpsMessages and maps only2 plans
3 to 5 GBSlows to 200 kbps for the rest of the planMessages and maps only2 plans
UnlimitedTop speed 10 MbpsNo daily cap, fair-use policy appliesHD video1 plan
UnlimitedNo daily cap, fair-use policy applies1 plan
1 to 3 GBabesteSIM doesn't say9 plans

abesteSIM: “Some unlimited plans apply a Fair Usage Policy after high-speed usage reaches a threshold.” Source

abesteSIM ratings from customer reviews

33 reviews on Trustpilot, written 20 Jan 2026 to 1 Nov 2026. 0 of them are about a trip to Japan. Each rating needs at least 10 reviews that mention it.

Review rating3.8 out of 5The mean of the ratings below

abesteSIM ratings by aspect
AspectRatingReviews that mention it
Speed3.3 out of 510 reviews
Coverage3.8 out of 517 reviews
Setup4.0 out of 511 reviews
SupportNot enough reviews5 reviews
Value4.2 out of 512 reviews
AppNot enough reviews2 reviews
Data problems6.1% of reviews2 of 33 reviews report one
Refund problems3.0% of reviews1 of 33 reviews reports one

abesteSIM speed tests in Japan

No published speed tests of abesteSIM 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.

  • NTT Docomo
    Download
    50.5 MbpsQ3 2025
    Time on 5G
    51.4%
Ookla speeds for each network's own customers
NetworkDownload5G downloadTime on 5GLatency
NTT Docomo50.5 MbpsQ3 2025Not published51.4%Not published

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