# eSIM for a month in Japan: 6 providers compared (November 2026)

Updated 12 November 2026. Page: https://findbestesim.com/blog/esim-for-a-month-in-japan

For **30 days in Japan** with about 1 GB a day, the cheapest eSIM that lasts the whole trip is **[$23.99 with Wigoo, 50 GB, valid 30 days](https://findbestesim.com/go/jp/wigoo-jp-50-30)**. We compared 85 plans from 6 providers on 12 November 2026.

## Every provider for a month in Japan

The cheapest plan of each provider that lasts 30 days and carries enough data for the day's use. Prices read 12 November 2026.

Cheapest eSIM for 30 days in Japan, by provider and daily use:

| Provider | Light (0.5 GB/day) | Medium (1 GB/day) | Heavy (2 GB/day) |
| --- | --- | --- | --- |
| Wigoo | **$12.49** 20 GB, valid 30 days | **$23.99** 50 GB, valid 30 days | **$73.59** unlimited data for 30 days, 2 GB a day at full speed |
| Yapsim | **$13.99** 20 GB, valid 30 days | **$26.49** 50 GB, valid 30 days | **$73.59** unlimited data for 30 days, 2 GB a day at full speed |
| Olalatrip | **$14.49** 20 GB, valid 30 days | **$27.99** 50 GB, valid 30 days | **$85.89** unlimited data for 30 days, 2 GB a day at full speed |
| Fizztrip | **$14.99** 20 GB, valid 30 days | **$28.99** 50 GB, valid 30 days | **$85.89** unlimited data for 30 days, 2 GB a day at full speed |
| GigSky | **$62.69** unlimited data for 30 days, 3.5 GB a day at full speed | **$62.69** unlimited data for 30 days, 3.5 GB a day at full speed | **$62.69** unlimited data for 30 days, 3.5 GB a day at full speed |
| Airalo | **$25.00** 20 GB, valid 30 days | **$69.00** unlimited data for 30 days | **$69.00** unlimited data for 30 days |

## How much data you need

- **Light use**, maps, messages: about 15 GB for 30 days. Cheapest: [$12.49 with Wigoo, 20 GB, valid 30 days](https://findbestesim.com/go/jp/wigoo-jp-20-30).
- **Medium use**, social, photos: about 30 GB for 30 days. Cheapest: [$23.99 with Wigoo, 50 GB, valid 30 days](https://findbestesim.com/go/jp/wigoo-jp-50-30).
- **Heavy use**, video, hotspot: about 60 GB for 30 days. Cheapest: [$62.69 with GigSky, unlimited data for 30 days, 3.5 GB a day at full speed](https://findbestesim.com/go/jp/gigsky-170206-30d-jp).

## Unlimited data for a month

The cheapest unlimited plan that covers 30 days is [$62.69 with GigSky, unlimited data for 30 days, 3.5 GB a day at full speed](https://findbestesim.com/go/jp/gigsky-170206-30d-jp), with 3.5 GB a day at full speed. Past that amount the speed drops for the rest of the day.

It costs $62.69 against $23.99 for the cheapest plan with enough data for normal use. It is worth it if you stream video or share your connection every day.

## How to buy it

1. Open the [Wigoo plan for Japan](https://findbestesim.com/go/jp/wigoo-jp-50-30): Wigoo's page opens on that plan.
2. Pay there. The eSIM arrives by email and in the provider's app, with a QR code.
3. Install it before you leave, while you still have Wi-Fi. On the plan's page, check when it starts counting days.

Prices change: we read them every day. The [Japan page](https://findbestesim.com/japan) recomputes the answer for any number of days and any daily use.

## Questions

### What is the cheapest eSIM for a month in Japan?

$23.99 with Wigoo, 50 GB, valid 30 days, for 30 days with about 1 GB a day. It is the cheapest of 10 plans that last the whole trip, read on 12 November 2026.

### How much data do I need for a month in Japan?

About 15 GB for maps and messages, 30 GB for social media and photos, and 60 GB for video or a hotspot.

### Is there an unlimited eSIM for a month in Japan?

Yes. The cheapest is $62.69 with GigSky, unlimited data for 30 days, 3.5 GB a day at full speed, with 3.5 GB a day at full speed.

### Which networks does it use?

Wigoo uses KDDI/au, NTT docomo, Rakuten Mobile, SoftBank in Japan.

## Related

- [All Japan eSIM plans](https://findbestesim.com/japan)
- [Japan: top 6 esims](https://findbestesim.com/blog/top-esims-for-japan)
- [Japan: for a week](https://findbestesim.com/blog/esim-for-a-week-in-japan)
- [Japan: for two weeks](https://findbestesim.com/blog/esim-for-two-weeks-in-japan)
- [Japan: unlimited data](https://findbestesim.com/blog/unlimited-esim-japan)

Ranking rule: https://findbestesim.com/how-we-rank