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Breeze Japan

Japan eSIM cost calculator

Enter how long you stay and how much data you expect to use. The table shows what each provider actually charges for that trip, what you get, and how many days you end up paying for but not using.

Rows are in a fixed order by provider. That order is not a ranking.

They price on different axes. Airalo sells a fixed ladder of trip lengths alongside a grid of data caps. Yesim sells unlimited by the exact day, so a 12-day trip costs 12 days rather than a 15-day package. Saily sells a few data bundles with a fixed validity, plus unlimited plans where you pick the number of days.

Show every package and its price

Every Japan package, as listed by each provider — Airalo

Unlimited packages
Valid forPricePer day
3 daysUSD 11.50USD 3.83
5 daysUSD 17.00USD 3.40
7 daysUSD 26.50USD 3.79
10 daysUSD 34.50USD 3.45
15 daysUSD 48.00USD 3.20
30 daysUSD 69.00USD 2.30
Packages with a data cap
PlanValid forPricePer GB
1 GB3 daysUSD 4.00USD 4.00
3 GB3 daysUSD 7.50USD 2.50
3 GB7 daysUSD 8.00USD 2.67
5 GB7 daysUSD 10.00USD 2.00
10 GB7 daysUSD 17.00USD 1.70
5 GB15 daysUSD 10.50USD 2.10
10 GB15 daysUSD 17.50USD 1.75
20 GB15 daysUSD 24.00USD 1.20
5 GB30 daysUSD 11.00USD 2.20
10 GB30 daysUSD 18.00USD 1.80
20 GB30 daysUSD 25.00USD 1.25

Every Japan package, as listed by each provider — Yesim

Unlimited packages
Valid forPricePer day
1 dayUSD 4.20USD 4.20
2 daysUSD 8.40USD 4.20
3 daysUSD 12.60USD 4.20
4 daysUSD 16.80USD 4.20
5 daysUSD 21.00USD 4.20
6 daysUSD 25.20USD 4.20
7 daysUSD 29.40USD 4.20
8 daysUSD 31.13USD 3.89
9 daysUSD 32.86USD 3.65
10 daysUSD 34.57USD 3.46
11 daysUSD 36.30USD 3.30
12 daysUSD 38.03USD 3.17
13 daysUSD 39.76USD 3.06
14 daysUSD 41.47USD 2.96
15 daysUSD 43.20USD 2.88
16 daysUSD 44.72USD 2.80
17 daysUSD 46.24USD 2.72
18 daysUSD 47.76USD 2.65
19 daysUSD 49.28USD 2.59
20 daysUSD 50.80USD 2.54
21 daysUSD 52.32USD 2.49
22 daysUSD 53.84USD 2.45
23 daysUSD 55.36USD 2.41
24 daysUSD 56.88USD 2.37
25 daysUSD 58.40USD 2.34
26 daysUSD 59.92USD 2.30
27 daysUSD 61.44USD 2.28
28 daysUSD 62.96USD 2.25
29 daysUSD 64.48USD 2.22
30 daysUSD 66.00USD 2.20
Packages with a data cap
PlanValid forPricePer GB
1 GB30 daysUSD 4.44USD 4.44
5 GB30 daysUSD 10.56USD 2.11
10 GB30 daysUSD 19.20USD 1.92
20 GB30 daysUSD 29.76USD 1.49
30 GB30 daysUSD 39.60USD 1.32

Every Japan package, as listed by each provider — Saily

Unlimited packages
Valid forPricePer day
1 dayUSD 3.99USD 3.99
2 daysUSD 7.99USD 4.00
3 daysUSD 11.99USD 4.00
4 daysUSD 15.99USD 4.00
5 daysUSD 18.99USD 3.80
6 daysUSD 22.99USD 3.83
7 daysUSD 26.99USD 3.86
8 daysUSD 29.99USD 3.75
9 daysUSD 32.99USD 3.67
10 daysUSD 34.99USD 3.50
11 daysUSD 37.99USD 3.45
12 daysUSD 40.99USD 3.42
13 daysUSD 43.99USD 3.38
14 daysUSD 46.99USD 3.36
15 daysUSD 48.99USD 3.27
16 daysUSD 51.99USD 3.25
17 daysUSD 53.99USD 3.18
18 daysUSD 55.99USD 3.11
19 daysUSD 57.99USD 3.05
20 daysUSD 59.99USD 3.00
21 daysUSD 60.99USD 2.90
22 daysUSD 61.99USD 2.82
23 daysUSD 62.99USD 2.74
24 daysUSD 63.99USD 2.67
25 daysUSD 65.99USD 2.64
26 daysUSD 67.99USD 2.62
27 daysUSD 68.99USD 2.56
28 daysUSD 69.99USD 2.50
29 daysUSD 70.99USD 2.45
30 daysUSD 71.99USD 2.40
Packages with a data cap
PlanValid forPricePer GB
1 GB7 daysUSD 3.99USD 3.99
3 GB30 daysUSD 7.99USD 2.66
5 GB30 daysUSD 10.99USD 2.20
10 GB30 daysUSD 17.99USD 1.80
20 GB30 daysUSD 24.99USD 1.25
  • Airalo · Network: Softbank 5G · KDDI 5G
  • Airalo · Speed limit on unlimited packages: Unlimited means unlimited until 3 GB in one day. After that the speed drops to 1 Mbps for the rest of that day, then resets.
  • Yesim · Network: not disclosed by the provider
  • Saily · Network: not disclosed by the provider
  • Saily · Speed limit on unlimited packages: Unlimited means unlimited until 5 GB in one day. After that the speed drops to 1 Mbps for the rest of that day, then resets.
  • Every option here is data only. None of them gives you a local phone number, so if you need one for calls, deliveries or SMS codes, an eSIM of this kind is not the answer.

Prices read from each provider on 2026-10-07 · The links below are affiliate links. The price you pay does not change.

Background on how these work, and what to do if eSIM is not the answer: the full guide

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