Japan eSIM.
Tokyo neon to Kyoto temples — flawless data on the golden route.
- Instant eSIM — QR code by email in minutes
- Data-only — keep your own number for calls & texts
- Plan days start on first connection abroad — install early
- Tethering / hotspot where your plan allows
- Top up data or days anytime — no new eSIM needed
- 4G/LTE speeds, 5G where available
- Prepaid — the total above is the whole bill, no roaming fees
- 30-day refund on unused, uninstalled eSIMs
Unlimited plans run at full speed up to a daily fair-use allowance, then at reduced speed until the allowance resets the next day — you're never cut off. Every plan is prepaid: the checkout total is the whole bill, and we never add overage charges.
Hotspot support varies by plan and destination — where it's available for your plan in Japan, it's shown in the plan details before you pay.
Japan eSIM plans: unlimited, or by the GB.
Every Japan eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Japan — you can always top up or switch on your next trip.
Unlimited plansHigh-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
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
How much data do you need in Japan?
A rough, honest guide to sizing your Japan eSIM so you're not guessing. Most travellers in Japan are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.
Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.
Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.
Netflix by the pool, long video calls home and hotspot for the laptop — go Unlimited and stop counting.
The Japan eSIM guide.
No destination rewards good data like Japan: navigation through Tokyo's stations, translation everywhere, restaurant queues managed by app, and the Shinkansen timed to the minute. Japanese networks are superb — your eSIM rides them the whole trip.
How it works on the day
Install at home, switch on at Haneda, Narita or KIX. Coverage holds along rail corridors and underground in the metro, so the golden route just works.
Choosing your days
The classic 10–14 day Tokyo–Kyoto–Osaka route lands in the discounted day-rate band.
Before you land in Japan.
Narita, Haneda and Kansai all sell tourist SIMs, but counters keep opening hours and queues follow long-haul landings — an eSIM installed at home is already working on the train into town.
Suica and PASMO travel cards now sit in Apple Wallet and Google Wallet, and topping up on the go needs a connection — one more reason to land online.
The classic rental puck is a second device to collect, charge and return; your own phone's hotspot on an eSIM does the same sharing job without the return-desk deadline.
Many small restaurants, shrines and ticket machines still prefer cash; convenience-store ATMs take foreign cards, and finding the nearest one is a maps-and-data job.
Signal along the Shinkansen corridors and underground in the metro is generally excellent; remote mountain valleys and small islands can still drop coverage, as on any network.
Discover Japan.
How to activate your Japan eSIM.
Full installation guide →
01
02
03
04What is a Japan eSIM?
A Japan eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Japan data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.
Connected · 5G
Your Japan eSIM: data-only, no overage fees.
Your Japan eSIM handles the internet while you travel. Your home number stays exactly where it is — no surprise roaming charges in Japan, no swapping your real SIM out.
The eSIM is data-only and runs alongside your home SIM. Your number, iMessage and WhatsApp keep working exactly as they do at home.
Turn data roaming OFF on your home SIM and ON for the eSIM. You pay once, up front — we never add data-overage charges on top.
Because it's data-only, the eSIM can't receive bank verification (OTP) text codes — those still go to your home number. Keep it reachable on Wi-Fi calling, or use app-based codes.
Made for your kind of trip.
Why travellers choose My Holiday SIM for Japan.
eSIM ready in ~2 minutesCoverage in Japan.
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.
Your eSIM connects automatically to an available supported partner network. The networks for your selected plan are shown before payment.
Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.
Japan eSIM, city by city.
Heading somewhere specific in Japan? Each city guide covers the local airport, the areas you'll lean on data, and the same national Japan eSIM — one plan, wherever you land.
Japan eSIM, region by region.
Exploring beyond the cities? Each regional guide covers the states, provinces and areas of Japan — the local gateways, where the data holds up, and the same national Japan eSIM working across all of it.
Japan eSIM questions, answered.
Worth reading before you fly.
