Is the eSIM reliable for skiing in Hakuba or Nozawa Onsen?

Yes. The resort villages and most lift areas across Hakuba and Nozawa Onsen have solid 4G and 5G, so snow reports, lift status and restaurant bookings work well. Backcountry and high ridges can drop out.

What about hiking in Kamikochi and the Northern Alps?

Be prepared for little to no signal. Kamikochi and the high Alps trails are largely off-grid, so download offline maps and your shuttle-bus reservations from Sawando before entering the valley.

Nagano eSIM.

Name: Nagano travel eSIM
Brand: My Holiday SIM

Japan's alpine heart — Matsumoto's black castle, bathing snow monkeys and the powder slopes of Hakuba.

from $3.14/day · unlimited dataAll of Japan →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$6.80$0.68/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$6.80

Good to know in Nagano

Signal vanishes inside Kamikochi and on high Alps trails, so download offline maps and your bus reservations first; note Kamikochi bans private cars, so you'll rely on timed shuttle buses from Sawando.

Best time to visit Nagano

January to March for world-class powder; July to October for alpine hiking and Kamikochi's crisp autumn air.

Two simple ways to buy

Nagano eSIM plans: unlimited, or by the GB.

Every Nagano eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Nagano — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Nagano?

A rough, honest guide to sizing your Nagano eSIM so you're not guessing. Most travellers in Nagano are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Nagano eSIM: your local data guide.

Nagano is Japan's alpine heart — Matsumoto's black castle, the snow monkeys bathing at Jigokudani, powder resorts at Hakuba and Nozawa Onsen, and the hiking trails of Kamikochi in the Northern Alps. Mobile signal fades deep in the mountains, so a Nagano eSIM keeps trail maps, bus times and onsen bookings live between the valleys and peaks.

One eSIM for Nagano and all of Japan. It's the national Japan eSIM — from $3.14/day with unlimited data, working the same in Nagano as it does the moment you leave it.

Landing at Tokyo - Haneda Airport (HND)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Nagano eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$1.28

$3.83

—

5 days1GB

$0.77

$3.83

−40%

7 days1GB

$0.55

$3.83

−57%

10 days3GBPopular

$0.68

$6.80

−47%

15 days3GB

$0.45

$6.80

−65%

30 days5GB

$0.35

$10.42

−73%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Nagano

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Nagano eSIM from $3.14/day — the whole bill, agreed before you fly.

Across the region

Where you'll lean on data in Nagano.

Hakuba

The ski valley's resorts and village run reliable 4G and 5G for lift status and snow reports.

Snow Monkey Park (Jigokudani)

Signal reaches the car park but fades on the forest walk to the monkeys, so download directions.

Matsumoto

The castle city holds fast, steady data across its centre and around the station.

Kamikochi

Deep in the Northern Alps coverage is sparse to none, so cache trail maps and bus times before entering.

The practical bit

Getting around Nagano on your eSIM.

Apps you'll want online in Nagano

Alpico— Runs the buses and info for Kamikochi, Matsumoto and the Alps.
Japan Travel by NAVITIME— English planner for the shinkansen and local lines into Nagano.
Google Maps— Vital for driving and walking directions in the mountain valleys.
GO— Book taxis in Nagano city and Matsumoto by app.

How long to stay in Nagano

Plan three to five days in Nagano, enough to combine Matsumoto and the snow monkeys with skiing at Hakuba or summer hiking in Kamikochi.

How much data for Nagano

A balanced 3-5 GB handles maps, snow reports and bookings across a few days; because mountain signal is patchy, offline maps matter more than raw data allowance here.

Coverage in Nagano

Matsumoto, Nagano city and the ski villages hold solid 4G and 5G, but the Northern Alps, Kamikochi and the forest trail to the snow monkeys are largely off-grid.

Where you're headed

Discover Nagano.

Tranquil hilltop view overlooking Nagano, Japan with empty benches and mountain backdrop.

Captivating aerial view of Nagano city and park with vibrant autumn trees against a mountain backdrop.

A serene landscape featuring Matsumoto Castle moat surrounded by trees on a clear day.

Scenic view of historic Matsumoto Castle by a serene lake surrounded by nature.

How to activate your Nagano eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Nagano

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Nagano?

What is a Nagano eSIM?

A Nagano eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Nagano data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Why travellers choose My Holiday SIM for Nagano.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in Japan.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Japan's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

NTT Docomo
SoftBank
au (KDDI)

Popular places covered

TokyoKyotoOsakaHiroshimaSapporoFukuoka

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Nagano eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Nagano eSIM questions, answered.

Partly. Coverage reaches the Jigokudani car park and Yudanaka village, but fades on the 1.6km forest walk to the monkeys. Download directions beforehand so you don't get lost on the trail.

Your Nagano eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in Japan?