500MB
Best match7 days
Japan
- Hotspot
$1.80$1.90−5%
Japan eSIM
Japan is the destination Thai travellers buy eSIMs for most, because almost every part of the trip runs on a phone: planning transfers between train lines, checking timetables that shift by the minute, booking restaurants that only take reservations in an app, and finishing arrival paperwork before you land. Urban coverage is dense and reaches most subway platforms, so the practical question is not whether you will have signal but how much data your days actually consume and when you switch the line on.
Plans listed
108
Network
NTT DOCOMO, KDDI (au), SoftBank, Rakuten Mobile
Technology
3G / 4G / 5G
Local currency
JPY
This page carries 108 eSIM plans for Japan, riding on NTT DOCOMO / KDDI (au) / SoftBank with 3G / 4G / 5G support. Install the profile at home before you fly; the plan starts counting when the phone first registers on a network at the destination.
Build the plan that fits
Pick your days and data and we match the closest real packages, cheapest first.
−5%5% off every plan · code ESIM5 applied for you · new eSIMs only, not top-ups1 package
How much data
1 package
Picked by how you travel
Best for a short trip
Japan 500MB per day
NTT docomo
Exits in Japan · NTT docomo · 256 Kbps after the quota
- Data
- 500MB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
- One network
from$0.90$0.85
Best for heavy data
Japan 50GB 30 days
NTT docomo
Exits in Japan · NTT docomo
- Data
- 50GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- One network
from$31.30$29.73
These picks are computed from price per GB, validity and plan features only — never from what we earn.
All Japan plans
Not sure which plan?
Tell us your days and usage, we'll pick from the plans available here
+
Not sure which plan?
Tell us your days and usage, we'll pick from the plans available here
How much do you use
Best pick$34.30$32.58Pick this plan
Japan 2GB per day
NTT docomo
- 2GB per day, buy exactly the 7 days you need
- Supports 5G network
for 7 days
Cheapest$9.01$8.56Pick this plan
Japan 10GB 30 days
NTT docomo
- 10GB for 7 days, leaves about 41% headroom
- Valid for 30 days, longer than your 7-day trip in case plans shift
- Supports 5G network
Extra headroom$14.73$13.99Pick this plan
Japan 20GB 30 days
NTT docomo
- 20GB for 7 days, leaves about 183% headroom
- Valid for 30 days, longer than your 7-day trip in case plans shift
- Supports 5G network
Most flexible$34.30$32.58Pick this plan
Japan 3GB per day
NTT docomo
- 3GB per day, buy exactly the 7 days you need
- Supports 5G network
for 7 days
Short trips, 1–7 days9 packages
Japan 1GB 7 days
NTT docomo
Exits in Japan · NTT docomo
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- One network
from$1.90$1.80
Choose network
Japan +13 countries 1GB 7 days
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$1.90$1.80
Japan 500MB 7 days
NTT docomo / Rakuten Mobile / KDDI/au
- Data
- 500MB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G
Validity starts on first connection at the destination
- 4G only, no 5G
from$1.90$1.80
Japan +1 countries 1GB 7 days
2 countries · partner networks
Works in 2 countries: Japan, South KoreaSee all
Japan, South Korea
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$2.90$2.75
Japan +2 countries 1GB 7 days
3 countries · partner networks
Works in 3 countries: Japan, China, South KoreaSee all
Japan, China, South Korea
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$4.90$4.65
Japan +19 countries 1GB 7 days
20 countries · partner networks
Works in 20 countries: Japan, Australia, China +17See all
Japan, Australia, China, Hong Kong, Singapore, South Korea, Vietnam, Cambodia, India, Indonesia, Israel, Kuwait, Macau, Malaysia, New Zealand, Pakistan, Philippines, Saudi Arabia, Sri Lanka, Thailand
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$6.90$6.55
8–15 days6 packages
Japan 3GB 15 days
NTT docomo
Exits in Japan · NTT docomo
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- One network
from$3.58$3.40
Choose network
Japan +13 countries 3GB 15 days
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$4.90$4.65
Japan +1 countries 3GB 15 days
2 countries · partner networks
Works in 2 countries: Japan, South KoreaSee all
Japan, South Korea
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$6.90$6.55
Japan +2 countries 3GB 15 days
3 countries · partner networks
Works in 3 countries: Japan, China, South KoreaSee all
Japan, China, South Korea
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$9.90$9.40
Japan +19 countries 3GB 15 days
20 countries · partner networks
Works in 20 countries: Japan, Australia, China +17See all
Japan, Australia, China, Hong Kong, Singapore, South Korea, Vietnam, Cambodia, India, Indonesia, Israel, Kuwait, Macau, Malaysia, New Zealand, Pakistan, Philippines, Saudi Arabia, Sri Lanka, Thailand
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$15.90$15.10
Japan +11 countries 3GB 15 days
12 countries · partner networks
Works in 12 countries: Japan, China, Hong Kong +9See all
Japan, China, Hong Kong, Singapore, South Korea, Taiwan, Vietnam, Cambodia, Indonesia, Macau, Malaysia, Thailand
- Data
- 3GB
- Validity
- 15 days
- Hotspot
- Yes
- Technology
- 3G / 4G
Validity starts on first connection at the destination
- 4G only, no 5G
from$15.90$15.10
16 days and longer40 packages
Japan 3GB 30 days
NTT docomo
Exits in Japan · NTT docomo
- Data
- 3GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- One network
from$4.19$3.98
Choose network
Japan +13 countries 3GB 30 days
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 3GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$4.90$4.65
Japan 5GB 30 days
NTT docomo
Exits in Japan · NTT docomo
- Data
- 5GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- One network
from$5.09$4.84
Choose network
Japan +19 countries 1GB 30 days
20 countries · partner networks
Works in 20 countries: Japan, Australia, China +17See all
Japan, Australia, China, Hong Kong, Singapore, South Korea, Vietnam, Cambodia, India, Indonesia, Israel, Kuwait, Macau, Malaysia, New Zealand, Pakistan, Philippines, Saudi Arabia, Sri Lanka, Thailand
- Data
- 1GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$6.90$6.55
Japan +13 countries 5GB 30 days
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 5GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$7.90$7.50
Japan +1 countries 3GB 30 days
2 countries · partner networks
Works in 2 countries: Japan, South KoreaSee all
Japan, South Korea
- Data
- 3GB
- Validity
- 30 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$7.90$7.50
Daily · unlimited with fair use25 packages
Full speed up to each day's quota, then a reduced speed for the rest of that day. Buy as many days as the trip needs.
Japan 500MB per day
NTT docomo
Exits in Japan · NTT docomo · 256 Kbps after the quota
- Data
- 500MB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
- One network
from$0.90$0.85
Choose network
Japan 1GB per day
NTT docomo
Exits in Japan · NTT docomo · 256 Kbps after the quota
- Data
- 1GB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
- One network
from$1.90$1.80
Choose network
Japan +13 countries 1GB per day
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 1GB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
from$1.90$1.80
Japan +2 countries 500MB per day
3 countries · partner networks
Works in 3 countries: Japan, China, South KoreaSee all
Japan, China, South Korea
- Data
- 500MB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
from$2.90$2.75
Japan +1 countries 1GB per day
2 countries · partner networks
512 Kbps after the quota
Works in 2 countries: Japan, South KoreaSee all
Japan, South Korea
- Data
- 1GB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
from$2.90$2.75
Choose network
Japan 2GB per day
NTT docomo
Exits in Japan · NTT docomo · 256 Kbps after the quota
- Data
- 2GB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
- One network
from$4.90$4.65
Choose network
Covers several countries65 packages
Packages valid beyond one country; the card lists them.
Japan +13 countries 1GB per day
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 1GB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
from$1.90$1.80
Japan +13 countries 1GB 7 days
14 countries · partner networks
Works in 14 countries: Japan, Hong Kong, South Korea +11See all
Japan, Hong Kong, South Korea, Taiwan, Vietnam, Bangladesh, Cambodia, India, Indonesia, Laos, Macau, Malaysia, Philippines, Thailand
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$1.90$1.80
Japan +1 countries 1GB 7 days
2 countries · partner networks
Works in 2 countries: Japan, South KoreaSee all
Japan, South Korea
- Data
- 1GB
- Validity
- 7 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
from$2.90$2.75
Japan +2 countries 500MB per day
3 countries · partner networks
Works in 3 countries: Japan, China, South KoreaSee all
Japan, China, South Korea
- Data
- 500MB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
from$2.90$2.75
Japan +1 countries 1GB per day
2 countries · partner networks
512 Kbps after the quota
Works in 2 countries: Japan, South KoreaSee all
Japan, South Korea
- Data
- 1GB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G / 5G
Validity starts on first connection at the destination
- Daily, no top-up
from$2.90$2.75
Choose network
Japan +11 countries 500MB per day
12 countries · partner networks
Works in 12 countries: Japan, China, Hong Kong +9See all
Japan, China, Hong Kong, Singapore, South Korea, Taiwan, Vietnam, Cambodia, Indonesia, Macau, Malaysia, Thailand
- Data
- 500MB per day
- Validity
- sold per day, up to 365 days
- Hotspot
- Yes
- Technology
- 3G / 4G
Validity starts on first connection at the destination
- 4G only, no 5G
- Daily, no top-up
from$3.90$3.70
What happens when your GB runs out
A GB plan is a fixed amount of data. When it is used up, data on that eSIM stops and nothing is charged automatically, but you can top up the same eSIM without a new QR code, and check what is left any time from your order page.
Example: plenty left
59%used
4.1 GB left
Used 5.9 GB
Total 10 GB
41% remaining
Refresh
Example: running low
92%used
0.8 GB left
Used 9.2 GB
Total 10 GB
8% remaining
RefreshTop up
How much data you actually need
A typical Japan trip uses about 800MB–1.5GB a day because maps and train apps stay open from morning to night. If you upload video every evening, budget around 2GB a day, and if you tether for travel companions, multiply by the number of devices that lean on your line.
When you land
Main gateways are Narita (NRT), Haneda (HND), Kansai (KIX), Chubu (NGO) and Fukuoka (FUK). Turn the eSIM line on as soon as you land — you normally have service before immigration, which helps if you still need Visit Japan Web, and it means you can plan the train into the city without hunting for airport Wi-Fi.
Where coverage changes
Signal is strong across Tokyo, Osaka and Kyoto including underground. Mountain areas — hiking routes in the Japanese Alps, Shirakawa-go in snow season, and stretches of rural Hokkaido lines — can drop in and out, so download the map area before you leave the last big town.
Cities travellers ask about
- Tokyo — City-wide coverage including subway stations and platforms.
- Osaka — Heavy map use around Namba and Umeda, where stations have many exits.
- Kyoto — A bus-based city; you will check live departure times all day.
- Hokkaido — Thin patches between towns; download maps ahead of the drive.
- Okinawa — Beaches and outer islands vary from spot to spot.
Read it city by city: Tokyo, Osaka, Kyoto, Sapporo, Fukuoka, Nagoya, Hiroshima, Nara, Okinawa
Apps to install before you fly
- Google Maps or Yahoo! Norikae for train transfers
- Visit Japan Web for immigration steps
- Tabelog or Google for restaurant bookings
Networks in Japan
| Operator | Technology |
|---|---|
| NTT DOCOMO | 4G / 5G |
| KDDI (au) | 4G / 5G |
| SoftBank | 4G / 5G |
| Rakuten Mobile | 4G / 5G |
These are the networks operating in the country. A given plan may reach only some of them — check the network named on the plan itself.
Plan comparison
| Plan | Data | Validity | Hotspot | Sold by |
|---|---|---|---|---|
| Japan 500MB per day | 500MB per day | 1 days | Yes | eSIMonline |
| Japan 500MB per day | 500MB per day | 1 days | Yes | eSIMonline |
| Japan 500MB per day | 500MB per day | 1 days | Yes | eSIMonline |
| Japan 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan +13 countries 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan +2 countries 500MB per day | 500MB per day | 1 days | Yes | eSIMonline |
| Japan +1 countries 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan +1 countries 1GB per day | 1GB per day | 1 days | Yes | eSIMonline |
| Japan 2GB per day | 2GB per day | 1 days | Yes | eSIMonline |
FAQ
Does an eSIM work on the Shinkansen?+
Yes, though long tunnels interrupt it, especially on the stretches that cut straight through mountains. If you need to join an online meeting on board, download the files you need beforehand and leave slack in the schedule; service comes back on its own once the train clears the tunnel or stops at a station.
Do I need an unlimited plan for Japan?+
Usually not. A 10–20GB plan covers a typical 7–10 day trip built around maps, chat and photos. Unlimited pays off when you stream or go live every day, or when you tether several devices off one line. Multiply your realistic daily use by the number of nights before you decide.
Should I turn roaming off on my Thai SIM while using the eSIM?+
Yes. Set the eSIM as the data line and switch data roaming off on your Thai SIM so you are not billed twice without noticing. You can still leave the Thai line registered for calls and SMS if you are waiting on bank one-time passwords, because receiving a text does not draw on the eSIM data allowance.
When does a Japan eSIM start counting days?+
Most plans here start when the phone first connects to a network at the destination, so you can install in advance at home and switch it on after landing. Each plan page states its own rule.
Do I have to remove my home SIM?+
No. The eSIM is a second line, so you keep your home number for SMS OTP. Turn off roaming data on the home line and set the eSIM as the data line.
More on Japan
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Last updated: October 18, 2026