Travel data · Japan
Japan travel eSIMonline the moment you land in Tokyo
Pick between eSIM, pocket WiFi and roaming for your trip, check your phone in 30 seconds, and install at home. Plus the one thing to know about Japan.
- No airport queue
- No SIM swap
- No roaming bill shock
What suits my trip?
Change the answersTravelling as
What matters most
Pick Travel eSIM
Solo or two, 5 days: a travel eSIM is close to the right answer. Install it at home, it connects as you land, and it is usually the cheapest per GB.
See Japan eSIM plans on Yesim ↗ Compare eSIM prices too ↗eSIM vs pocket WiFi vs roaming
The column that fits your answers is highlighted.
Travel eSIM
Installed by QR before you go
- ✓Getting itInstall by QR code before you fly
- !SharingHotspot from your phone (plan permitting)
- ✓BatteryNothing extra to charge
- ✓Cost levelUsually the cheapest per GB
- !Watch out forPhone must be unlocked and eSIM-capable
Pocket WiFi
Pick up and return a device
- !Getting itPick up, carry and return a device
- ✓SharingConnects several devices at once
- !BatteryOne more device to keep charged
- !Cost levelDaily rental fee plus deposit
- ×Watch out forLose it and you pay for the device
Carrier roaming
Nothing to prepare
- ✓Getting itNothing to set up
- ✓SharingHotspot usually allowed
- ✓BatteryNothing extra to charge
- ×Cost levelUsually the most expensive
- ×Watch out forBill shock if you pass the cap
Rule of thumb: solo or two → eSIM; several people sharing one connection → pocket WiFi; a short trip where convenience beats cost → roaming.
Mobile networks in Japan
NTT Docomoau (KDDI)SoftBankRakuten Mobile
Japan runs on four nationwide networks — NTT Docomo, au (KDDI), SoftBank and the newer Rakuten Mobile. Travel eSIMs almost always ride one of the big three, and for a visitor the practical difference between them is small: all three are fast and dependable in the places tourists actually go.
City coverage is superb, and unusually for the world, that includes the underground — you keep a signal on Tokyo and Osaka metro platforms and inside most trains. Coverage follows the shinkansen lines well. Where it thins out is deep in the mountains: remote onsen valleys, high hiking trails and some stretches of rural Hokkaido can drop to weak or no signal, so download offline maps before a countryside day trip.
Know this first in Japan
Japan is still surprisingly cash-based, but it is also map-app-dependent: addresses are hard to navigate without data, so a working connection matters more here than in most countries.
Will an eSIM work on my phone?
Two things must both be true: the phone supports eSIM, and it is not locked to a carrier. A locked phone can install an eSIM and still never connect.
Most iPhones from the XS and XR on support eSIM; of those sold in mainland China, only a few recent models do, and inside mainland China an eSIM from abroad cannot be installed. Lock status: Settings → General → About → Carrier Lock should read “No SIM restrictions”.
Menu names differ by maker, and the same model can lack eSIM depending on the country it was sold in. No menu? Use the EID check above.
Answer the two questionsAn EID plus an unlocked phone means a travel eSIM will work.
Setting it up: five steps
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What to look for in a Japan plan
- Days first, data second — a plan that expires mid-trip is worse than one that runs a little low.
- Hotspot/tethering allowed, if you travel with a laptop or share with a partner.
- Which local network it uses — see above; coverage beats a small price difference.
- A top-up option, so you can extend without installing a new eSIM.
- Data-only is normal: most travel eSIMs come without a phone number, and calls happen over WhatsApp or FaceTime anyway.
Good to know in Japan
- Free WiFi exists in convenience stores, hotels and many stations, but it is patchy and login-walled on the street — plan on mobile data rather than hopping between hotspots.
- Train-planning apps (route search, platform numbers, delays) are the single biggest data use for visitors — make sure your plan has enough data for heavy map and transit use.
- Airport SIM counters and vending machines exist at the major airports, but after a long-haul landing the queue and the paperwork are exactly what an eSIM installed at home lets you skip.
Japan eSIM plans on sale right now
Prices and data packages move week to week — compare current plans and pick the days-and-data combo that fits your trip. We deliberately quote no prices: they go stale too fast to trust. The button above always opens live pricing.
- Your trip
- Solo or two · 5 days · Cost
- Main networks
- NTT Docomo · au (KDDI) · SoftBank · Rakuten Mobile
- Seller
- Yesim
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Frequently asked questions
Will WhatsApp and my phone number still work?
Yes. Keep your home SIM installed and WhatsApp stays tied to your usual number while data flows through the travel eSIM.
Can I share the data with my laptop?
Usually yes, via your phone's hotspot — but some plans block tethering, so check the plan details before buying.
When should I buy and install it?
A few days before departure, on home WiFi. Enable it when you land — unless the plan starts at install, which is why you check the activation rule first.
My phone doesn't support eSIM — now what?
A physical tourist SIM on arrival or a pocket WiFi rental still works fine — the comparison above applies the same way.
Why are there no prices on this page?
Because they change weekly. A price table would mislead you within a month, so we link to live pricing instead.