Japan eSIM plans from $1.59
Affordable connectivity for every adventure to Japan.
Pick your Japan eSIM by network: NTT Docomo, KDDI or IIJ, from USD $1.59. Install it at home and you're online when you land in Tokyo or Osaka.
JP · USD $1.59
Japan eSIMs
10 plans
No picks for this trip yet — the full list is below.
An eSIM for Japan, Matched to How You Travel
A Japan eSIM is a prepaid data plan that lives on your phone instead of a plastic card, so there's no airport SIM counter to find at Narita or Haneda. You buy it online, install it before you leave, and it connects to a Japanese network when you arrive.
What makes our Japan range different is choice. Some plans run on NTT Docomo, some on KDDI, and longer plans on IIJ, with sizes from a single day of data up to unlimited. A three-day Tokyo stopover and a six-week rail trip need very different plans, and you can buy exactly the one that fits.
You pay once, upfront, so your travel data spend is fixed and you avoid daily roaming charges from your home carrier. If you get stuck, 24/7 support is a message away. Heading on to South Korea as well? A combined Japan and Korea plan covers both.
Japan eSIM Coverage on NTT Docomo, KDDI and IIJ
Your phone automatically connects to available supported partner networks for your plan: NTT Docomo, KDDI or IIJ. All three give dependable data across Tokyo, Yokohama and Osaka, including the stations and underground malls where you'll lean hardest on maps.
Outside the cities, the network you choose matters more. Docomo has one of the widest footprints in rural Japan, which helps on mountain routes like the Nakasendo Trail and around Fuji-Hakone-Izu National Park. Expect gaps in long rail tunnels on any network, and patchy signal in remote spots such as Shiretoko National Park.
Planning a wider trip through Asia? Regional plans cover Japan alongside its neighbours, so one eSIM can carry you across several countries.
Pick a plan on NTT Docomo, KDDI or IIJ depending on where you're going, rather than taking whatever network a single plan is tied to.
See how much data is left in your EscapeSIM dashboard before a long day out in Osaka or a Shinkansen ride.
Get a warning before you run low, then add more data in a few taps on plans that support top-ups.
Your regular SIM stays active for calls and texts, while the Japan eSIM handles maps, translation and messaging apps.
Get Connected in 4 Steps
Select a prepaid data package that fits your travel schedule and data needs.
Check your email for your unique QR code, which arrives within seconds of purchase.
Open the eSIM settings on your phone and scan the QR code to download your data profile.
Enable data roaming for your new eSIM line when you arrive to connect to a local network.
Why Travellers Choose Our Japan eSIM
A Network That Suits Your Route
City trips work well on any of the three networks. If your itinerary leans rural or mountainous, a Docomo plan is the sensible pick.
Docomo plans range from 3 GB up to 100 GB, with validity from one day to 45 days, so they cover most trip lengths.
KDDI plans include unlimited-data options from three days up to a month, handy if you stream, upload a lot of photos or video call home every night.
Day Passes for Short Stops
On a layover or a quick Tokyo stopover, a one-day pass gives you a generous daily allowance without paying for a week you won't use.
Docomo day passes come in 5 GB and 30 GB sizes for a single day, with a two-day option too.
For a slightly longer visit, a 3 GB plan lasting from three to 15 days covers maps, messaging and checking train times.
Plans for Long Stays
Working holidays, language courses and slow rail trips need data that lasts. IIJ plans run from 15 days up to 60 days.
IIJ plans come in sizes from 3 GB to 30 GB, which suits steady everyday use over several weeks.
If you need more than that, check your remaining data in the dashboard and top up on supported plans instead of starting a new eSIM.
A Better Fit Than Home Roaming
Travellers flying in from Australia and elsewhere often pay a daily roaming fee to their home carrier. A prepaid Japan eSIM swaps that for one upfront cost.
Turn off data roaming on your home SIM and let the Japan eSIM carry your data, while your home number still receives calls and texts.
Because the plan is prepaid, the data side of your trip costs what you paid for it and nothing more.
Who Our Japan eSIM Suits
Check platform changes, book seats and follow maps between Tokyo and Osaka without hunting for station Wi-Fi.
Use ride wait-time apps and digital tickets at Tokyo Disneyland and Universal Studios Japan, with an unlimited KDDI plan so nobody rations data.
Carry offline maps and weather checks on the Kumano Kodo Pilgrimage Trails, with a Docomo plan for the remote stretches.
Join calls from WeWork or Impact Hub Tokyo, then keep working from your hotel on a long-stay IIJ plan.
Japan eSIM Questions
Match the plan to your trip. For a city trip of a week or two, a Docomo or KDDI data plan sized to your usage works well. Heading into the countryside, choose Docomo. Stay longer than a month on an IIJ plan, and pick an unlimited KDDI plan if you stream or video call a lot.
Maps, messaging, browsing and some social media come to roughly 0.5 GB a day, so a week of light use fits in a 3 GB to 5 GB plan. Video streaming and video calls use about 1 GB per hour, so plan bigger or go unlimited if you do either. You can track usage in your EscapeSIM dashboard.
Yes, along most of the route. Data works on the bullet train between stations, but every network drops out in long tunnels, so expect short gaps. In rural and mountain areas Docomo plans tend to reach furthest. Download offline maps before remote hikes as a backup.
No. These are data-only plans without a Japanese phone number. Your home SIM stays active, so you keep your usual number for calls and texts. To call people in Japan, use internet calling in apps like LINE or WhatsApp over your eSIM data.
For most trips, yes. Home carrier roaming usually charges a daily fee, while a prepaid Japan eSIM is one upfront cost for your travel data. Install it before you fly, switch your data to the eSIM on arrival, and keep your Australian number active for calls and texts.
A Japan-only plan works only in Japan. If your trip continues to Korea, choose the Japan and Korea plan, and for longer routes take a regional Asia plan that covers Japan with its neighbours. Your phone automatically connects to available supported partner networks in each country.
Yes. Your phone has to support eSIM and be carrier-unlocked. Recent iPhone, Samsung Galaxy and Google Pixel models support eSIM. If your phone was bought on a contract, ask your carrier to confirm it is unlocked before you travel.
It depends on your route and how much data you use. Choose Docomo for rural coverage, an unlimited KDDI plan for heavy use, IIJ for stays of a month or more, and a day pass for a stopover. Every plan is prepaid, with a usage dashboard and 24/7 support.