# eSIM for a Japan ski trip

Install a Japan eSIM at home and it connects when you land, so maps and messages work from the airport to the resort.

Published 2026-11-06, updated 2026-11-06. Page: https://inboxesim.com/guides/japan-ski-trip-esim

## When the season runs

Grand Hirafu in Niseko, Hokkaido, plans to be open from 28 November 2026 to 5 May 2027, with night skiing from 12 December 2026 to 22 March 2027. The resort says the dates depend on snow and trail conditions.

## Which pack

- A GB pack on the [Japan](/japan) page: each one says how many days it lasts, and the days start at its first connection in Japan, so you can buy before you fly.
- A [Day Pass](/japan?pass=7#buy) if you stream or share data every day: 3 GB a day at full speed, then 1 Mbps.
- Hotspot works on the GB packs and uses the same data, so one phone can cover a friend for a day.

## Prices today

**Japan** (https://inboxesim.com/japan)

| Data | Validity | Price (USD) | Buy |
|---|---|---|---|
| 1 GB | 7 days | $2.49 | https://inboxesim.com/japan?fare=hook |
| 3 GB | 30 days | $3.69 | https://inboxesim.com/japan?fare=light |
| 5 GB | 30 days | $4.79 | https://inboxesim.com/japan?fare=mid |
| 10 GB | 30 days | $7.79 | https://inboxesim.com/japan?fare=fat |
| 20 GB | 30 days | $13.19 | https://inboxesim.com/japan?fare=big |
| 50 GB | 30 days | $26.69 | https://inboxesim.com/japan?fare=jumbo |
| 50 GB | 180 days | $43.59 | https://inboxesim.com/japan?fare=long |

Unlimited Day Pass (unlimited data: 3 GB a day at full speed, then 1 Mbps with no cut-off):

| Days | Price (USD) | Buy |
|---|---|---|
| 3 | $9.90 | https://inboxesim.com/japan?pass=3 |
| 5 | $14.90 | https://inboxesim.com/japan?pass=5 |
| 7 | $20.90 | https://inboxesim.com/japan?pass=7 |
| 10 | $27.90 | https://inboxesim.com/japan?pass=10 |
| 15 | $41.90 | https://inboxesim.com/japan?pass=15 |

## How much data

- Maps, messages and photos at about 600 MB a day: about 4 GB for a week.
- Video calls home every evening or a hotspot for the group: 10 GB, or a Day Pass if you would rather not count.
- More detail by use: [how much data do I need](/guides/how-much-data-do-i-need).

## Phones in the cold

Apple designs iPhone for 0 to 35°C. Colder than that, the battery can run down sooner and the phone can switch off; battery life returns to normal once it warms up. Keep the phone in an inside pocket on the lift and carry a power bank.

> Install on Wi-Fi at home and keep the travel line off until you land. Weighing a rental router instead? See [eSIM or pocket Wi-Fi](/guides/japan-esim-vs-pocket-wifi).

## Sources

- Niseko Grand Hirafu: 2026-27 season dates: https://en.grand-hirafu.jp/ (read 2026-11-06)
- Apple: if your iPhone or iPad gets too hot or too cold: https://support.apple.com/en-us/118431 (read 2026-11-06)