Japan eSIM
AsiaGet a Japan eSIM and connect the moment you land. Buy a prepaid data plan, scan the QR, and you are online in minutes, with no roaming bill and no local SIM to find. Pay in crypto with no ID to buy. Plans start at $1.99.
- Instant delivery to your dashboard
- Prepaid, no contract, no auto-charge
- Works on any eSIM-ready phone
- Paid in crypto, no card or ID to buy
Japan eSIM at a glance
Live prices, updated September 2026- Price
- From $1.99
- Data plans
- 1 GB to Unlimited
- Validity
- 7 to 30 days
- Networks
- NTT Docomo, SoftBank
- 5G
- Yes, where available
- Setup
- Scan a QR, ~2 min
- Payment
- Crypto
- ID to buy
- None
Choose your plan
Prices are in USD and payable in crypto. No contract and no auto-renewal, and any balance you do not use stays on your account for next time.
Turning on roaming can cost $10 or more a day. A whole Japan trip starts at $1.99.
See the plansWhy an eSIM for Japan
Japan is one of the best places in the world to travel with an eSIM. Mobile coverage is dense and fast almost everywhere you will go, from central Tokyo to the bullet train and well into the countryside, so an eSIM keeps you online for maps, translation, and transit apps the moment you land.
It also beats the old options. Pocket wifi means a pickup, a deposit, a battery to charge, and a return. A physical tourist SIM means a counter and a passport scan. An eSIM is a QR code you scan before you fly, and it turns on the second you reach Narita, Haneda, or Kansai.
- Excellent 4G and 5G in cities, on the shinkansen, and in most rural areas.
- No pocket wifi to rent, charge, or return.
- Connect on arrival at Narita, Haneda, or Kansai, before you reach the train.
- Pay in crypto with no ID, and keep your home number on its SIM.
Is a Japan eSIM right for you?
Whoever you are travelling as, the setup is the same: buy, scan, connect. Here is what it means for you.
Japan eSIM vs pocket wifi vs airport SIM
A physical SIM card in Japan means a queue at an airport counter or a tourist SIM in the post. Here is how a physical SIM and a pocket wifi box stack up against an eSIM.
SimVala eSIM
- Ready before you flyYes
- Online the moment you landYes
- Anything to returnNothing
- Battery to chargeNo
- Passport or ID to buyNo
- Pay in cryptoYes
- Typical cost, 1 weekFrom a few dollars
Pocket wifi
- Ready before you flyNo, pickup on arrival
- Online the moment you landAfter pickup
- Anything to returnYes, the device
- Battery to chargeYes, a second battery
- Passport or ID to buySometimes
- Pay in cryptoRarely
- Typical cost, 1 weekAround 5000 to 7000 yen
Airport SIM
- Ready before you flyNo, buy at a counter
- Online the moment you landAfter the queue
- Anything to returnNothing
- Battery to chargeNo
- Passport or ID to buyUsually
- Pay in cryptoNo
- Typical cost, 1 weekAround 3000 to 5000 yen
Pocket wifi still suits a group sharing one connection across several devices. For a solo traveler or a couple, an eSIM is simpler and cheaper. Costs are rough guides, not quotes.
Coverage and networks in Japan
Depending on the plan, your eSIM connects to a major Japanese network such as NTT Docomo, SoftBank, or KDDI au. All three run fast 4G and wide 5G, so eSIM coverage in Tokyo, Osaka, and Kyoto is excellent, and stays strong on the shinkansen and out in the countryside.
Expect strong eSIM coverage in Tokyo, Osaka, Kyoto, with data across the rest of Japan. Signal follows the local network, so it is strongest in cities and along main routes.
Your eSIM roams on a major local network:
Coverage by area
Blanket 4G and 5G across the big cities and their subway, JR, and underground-mall networks. You rarely lose signal.
The bullet train stays connected between cities, apart from brief drops in the longer mountain tunnels.
Good coverage in towns and ski resorts like Niseko, with thinner signal deep in the mountains and national parks.
How much data do you need in Japan?
Whether your Japan trip is 7 days, 2 weeks, or a month, pick the data size to match. Not sure? Slide your trip length below and we will suggest a plan.
Japan travelers lean on maps, transit apps, and translation, which are light on data, plus the occasional video call home. For a one to two week trip, 3 to 5 GB suits most people. Add more if you stream or hotspot a laptop.
Estimate your data for Japan
Social, photos, some video
An estimate to guide you, not a limit. Wi-Fi at your hotel covers a lot, and you can top up any time, so it is fine to start smaller.
Typical usage per hour
Using an eSIM in Japan's top cities
One Japan eSIM covers all of these. Here is what to expect, city by city.
eSIM in Tokyo
Blanket 4G and 5G across the city, the metro, and the airports. Your eSIM keeps Google Maps, translation, and the train apps running from the second you land.
eSIM in Kyoto
Strong coverage across the temples, Gion, and the station. Handy for the bus network and translating menus on the go.
eSIM in Osaka
Dense coverage across Namba, Umeda, and the loop line. The shinkansen to and from Tokyo stays connected apart from brief tunnels.
Yes, you can call and text in Japan
Your eSIM is internet. So every calling and messaging app works, just like at home. No new apps to learn, nothing to set up.
Message anyone
LINE, WhatsApp, FaceTime all run over your data.
Call home for free
Voice and video on WhatsApp, FaceTime, or Messenger, no call charges.
Need a real number?
A data eSIM has no number of its own. Add a virtual number for codes and a local line.
Grab a Japan number before you fly
Get login codes and a real line to give out, all in your dashboard. Paid in crypto, no ID.
Pay for your Japan eSIM in crypto
This is where SimVala is different. There is no card and no ID to buy. Top up a balance with any of nine coins, then buy your Japan plan from it. Monero is accepted for the strongest privacy, and your QR lands in your dashboard the moment payment confirms.
Bitcoin
Monero
Ethereum
Tether
USD Coin
Solana
BNB
TRON
PolygonPay by QR in one scan
No card details, ever. Just scan and send.
- 1. Pick your coin and amountWe show a payment address and a QR code.
- 2. Scan and send from your walletThe quote holds for 15 minutes, no fee maths.
- 3. Balance ready, buy your planYour eSIM QR lands in your dashboard right away.
Set up your Japan eSIM in about two minutes
No SIM to pop out, nothing to post. It works the same on iPhone and Android. Here is all it takes.
- 1Buy your plan
Pick a plan above and pay from your crypto balance. A few taps and it is done.
- 2Open your QR code
The moment your order completes, your eSIM QR appears in your dashboard.
- 3Add the eSIM in Settings
iPhone: Settings, then Cellular, then Add eSIM. Android: Settings, then Network, then Add eSIM. Scan the QR.
- 4Turn it on and land online
Switch the line on when you land at Narita or Haneda, and you are online in seconds.
This is your eSIM QR. You scan it once, and your Japan line turns on. That is the whole install.
Will it work on your phone?
Most phones from the last few years support eSIM. Not sure? Scan your device in one tap.
Good to know
- •Free public wifi is less common in Japan than travelers expect, so mobile data matters more here.
- •Coverage on the shinkansen and in mountain areas is generally strong, with brief gaps in long tunnels.
- •Your eSIM carries data. Keep your home SIM active for calls and bank codes.
Popular in Japan
Why travellers choose SimVala
“Landed at Haneda and was online instantly for Google Maps and the train apps. Paid in Bitcoin, no ID.”
“Skipped the pocket wifi rental entirely. One eSIM covered Tokyo, Kyoto, and Osaka on the shinkansen.”
“Used Monero, the QR arrived in seconds, and coverage was flawless even in the mountains near Hakone.”
Visiting more of Asia?
If Japan is one stop of a bigger trip, one regional plan covers the whole area on a single eSIM.
eSIM in Japan: FAQ
Does my phone support eSIM?+
Most phones from the last few years do, including recent iPhone, Samsung Galaxy, and Google Pixel models.
How do I pay?+
In crypto only: Bitcoin, Monero, USDT, USDC, Solana, and more.
When does my plan start?+
Your plan validity begins when you install and activate the eSIM, not when you buy it.
Will an eSIM work in Japan?+
Yes, as long as your phone supports eSIM and is carrier unlocked. The eSIM connects to a local network in Japan and gives you data the moment you arrive.
How much data do I need in Japan?+
It depends on what you do. Maps and messaging use very little, while video and hotspotting use much more. For a typical one to two week trip, 3 to 5 GB suits most travelers, and you can top up any time.
Can I keep my phone number in Japan?+
Yes. Your home number stays on your physical SIM for calls and codes, while the eSIM carries local data. Both work at once on a dual-SIM phone.
Can I buy my eSIM before I travel?+
Yes, and you should. Buy and install it before you fly, then switch the line on when you land in Japan. Your plan's days only start counting when you activate it, not when you buy.
Does the plan expire?+
Each plan runs for a set number of days once you activate it, shown on the plan. Any balance you have not spent stays on your account for your next trip, so nothing is wasted.
Can I use my eSIM as a personal hotspot?+
On most plans, yes, so you can share your connection with a laptop or a friend. Tethering uses more data, so pick a larger plan if you rely on it.
Is an eSIM better than pocket wifi in Japan?+
For most travelers, yes. An eSIM has nothing to rent, charge, or return, works the instant you land, and does not run out of battery. Pocket wifi still suits a group sharing one connection across several devices.
Will an eSIM work outside the big cities in Japan?+
Yes. Japanese networks cover cities, the shinkansen, and most rural and mountain areas well, with only brief gaps in long tunnels. Coverage depends on the local network your eSIM uses.
Will Google Maps, transit, and translation work?+
Yes. These are exactly what a Japan eSIM is best at, and they use very little data. Maps and transit apps like Google Maps and Japan Travel work anywhere you have signal.
Do I need a VPN in Japan?+
No, Japan does not restrict the usual apps, so you do not need a VPN to stay connected. Some travelers use one for privacy on public wifi, but your eSIM data works without it.
Do I need an eSIM if there is free wifi in Japan?+
Free public wifi is less common and less reliable in Japan than many travelers expect. A data plan means you are not hunting for a hotspot to check a map or a train time.
When should I turn on my Japan eSIM?+
Install it before you fly, then switch the line on when you land in Japan. Your plan's validity counts from activation, so you do not lose days by installing early.
Does a Japan eSIM come with a phone number?+
No. A travel eSIM is data only, which is what you need for maps, apps, and calling over the internet. If you want a number to receive SMS, add a virtual number separately.
How do I install a Japan eSIM?+
Buy the plan, open the QR code in your dashboard, then add it in your phone's eSIM settings and scan. Our iPhone and Android guides walk through every step, and it takes about two minutes.
Is there an unlimited data plan for Japan?+
Yes. There is an Unlimited 30-day plan, so you never watch your data. If you use less, sized plans are the cheaper pick and you can top up any time. You only pay for what you need.
Do LINE and WhatsApp work on a Japan eSIM?+
Yes. Calling and messaging apps like LINE (the big one in Japan), WhatsApp, and FaceTime run over your eSIM data. You do not get a Japanese phone number with a data eSIM, so add a virtual number if you need one.
More for Japan
Ready for Japan?
Pay in crypto, scan the QR, and land connected. No card, no ID to buy. Set it up before you fly and you are online the second you arrive.