Best eSIM for Japan in 2026: Complete Comparison & Guide
Discover the best eSIM plans for traveling to Japan. Detailed comparison with real prices, exclusive promo codes, and recommendations by travel profile.
All eSIM plans for Japan by iRoamly in 2026
266 plans found · Last update:
| # | Plan | Data | Duration | Price/GB | Promo code | Price |
|---|---|---|---|---|---|---|
1 |  Japan-eSIM-1GB-5 Days-Total5G iRoamlyKDDI / softbank | 1.00GB | 5 days | $1.70 | - | $1.70 |
2 | Japan-eSIM-1GB-7 Days-Total5G iRoamlyKDDI / softbank | 1.00GB | 7 days | $1.80 | - | $1.80 |
3 | Japan-eSIM-1GB-10 Days-Total5G iRoamlyKDDI / softbank | 1.00GB | 10 days | $2.00 | - | $2.00 |
4 | Japan-eSIM-500MB-1 Day-Daily5G iRoamlyKDDI / softbank | 0.50GB | 1 days | $1.20 | - | $0.60 |
5 | Japan-eSIM-1GB-15 Days-Total5G iRoamlyKDDI / softbank | 1.00GB | 15 days | $2.10 | - | $2.10 |
6 | Japan-eSIM-500MB-5 Days-Daily5G iRoamlyKDDI / softbank | 0.50GB | 5 days | $5.20 | - | $2.60 |
7 | Japan-eSIM-500MB-6 Days-Daily5G iRoamlyKDDI / softbank | 0.50GB | 6 days | $5.40 | - | $2.70 |
8 | Japan-eSIM-500MB-2 Days-Daily5G iRoamlyKDDI / softbank | 0.50GB | 2 days | $1.60 | - | $0.80 |
9 | Japan-eSIM-1GB-30 Days-Total5G iRoamlyKDDI / softbank | 1.00GB | 30 days | $2.20 | - | $2.20 |
10 | Japan-eSIM-500MB-7 Days-Daily5G iRoamlyKDDI / softbank | 0.50GB | 7 days | $6.40 | - | $3.20 |
11 | Japan-eSIM-3GB-5 Days-Total5G iRoamlyKDDI / softbank | 3.00GB | 5 days | $1.07 | - | $3.20 |
12 | Japan-eSIM-3GB-7 Days-Total5G iRoamlyKDDI / softbank | 3.00GB | 7 days | $1.10 | - | $3.30 |
13 | Japan-eSIM-1GB-1 Day-Daily5G iRoamlyKDDI / softbank | 1.00GB | 1 days | $1.30 | - | $1.30 |
14 | Japan-eSIM-1GB-5 Days-Daily5G iRoamlyKDDI / softbank | 1.00GB | 5 days | $3.50 | - | $3.50 |
15 | Japan-eSIM-1GB-3 Days-Total5G iRoamlyKDDI / softbank | 1.00GB | 3 days | $1.60 | - | $1.60 |
#1
5GJapan-eSIM-1GB-5 Days-Total
iRoamly · KDDI / softbank
Data
1.00GB
Duration
5 days
Price/GB
$1.70
$1.70
#2
5GJapan-eSIM-1GB-7 Days-Total
iRoamly · KDDI / softbank
Data
1.00GB
Duration
7 days
Price/GB
$1.80
$1.80
#3
5GJapan-eSIM-1GB-10 Days-Total
iRoamly · KDDI / softbank
Data
1.00GB
Duration
10 days
Price/GB
$2.00
$2.00
#4
5GJapan-eSIM-500MB-1 Day-Daily
iRoamly · KDDI / softbank
Data
0.50GB
Duration
1 days
Price/GB
$1.20
$0.60
#5
5GJapan-eSIM-1GB-15 Days-Total
iRoamly · KDDI / softbank
Data
1.00GB
Duration
15 days
Price/GB
$2.10
$2.10
#6
5GJapan-eSIM-500MB-5 Days-Daily
iRoamly · KDDI / softbank
Data
0.50GB
Duration
5 days
Price/GB
$5.20
$2.60
#7
5GJapan-eSIM-500MB-6 Days-Daily
iRoamly · KDDI / softbank
Data
0.50GB
Duration
6 days
Price/GB
$5.40
$2.70
#8
5GJapan-eSIM-500MB-2 Days-Daily
iRoamly · KDDI / softbank
Data
0.50GB
Duration
2 days
Price/GB
$1.60
$0.80
#9
5GJapan-eSIM-1GB-30 Days-Total
iRoamly · KDDI / softbank
Data
1.00GB
Duration
30 days
Price/GB
$2.20
$2.20
#10
5GJapan-eSIM-500MB-7 Days-Daily
iRoamly · KDDI / softbank
Data
0.50GB
Duration
7 days
Price/GB
$6.40
$3.20
#11
5GJapan-eSIM-3GB-5 Days-Total
iRoamly · KDDI / softbank
Data
3.00GB
Duration
5 days
Price/GB
$1.07
$3.20
#12
5GJapan-eSIM-3GB-7 Days-Total
iRoamly · KDDI / softbank
Data
3.00GB
Duration
7 days
Price/GB
$1.10
$3.30
#13
5GJapan-eSIM-1GB-1 Day-Daily
iRoamly · KDDI / softbank
Data
1.00GB
Duration
1 days
Price/GB
$1.30
$1.30
#14
5GJapan-eSIM-1GB-5 Days-Daily
iRoamly · KDDI / softbank
Data
1.00GB
Duration
5 days
Price/GB
$3.50
$3.50
#15
5GJapan-eSIM-1GB-3 Days-Total
iRoamly · KDDI / softbank
Data
1.00GB
Duration
3 days
Price/GB
$1.60
$1.60
Written and reviewed by
Valentin FourierDigital Nomad
Developer and digital nomad, I lived between Canada and the United States before continuing to explore the world. After struggling with internet connectivity abroad one too many times, I created eSIM Planet to compare plans clearly and honestly. Every article is carefully written and reviewed to save you time and money.
Why choose iRoamly for Japan?
iRoamly is one of the most reliable eSIM providers for Japan. With 266 plans available from $0.60, you'll find the perfect offer for your stay.
Plans from $0.60 for Japan
Instant QR code activation
Quality 4G/5G coverage
Responsive customer support
Keep your home phone number
No hidden fees
FAQ about iRoamly Japan
Is the iRoamly promo code valid for Japan in 2026?
iRoamly regularly offers deals for Japan. Check this page for the latest available promotions.
What network coverage does iRoamly offer in Japan?
iRoamly partners with top local carriers in Japan to provide optimal 4G/LTE coverage. In major cities, you often get 5G depending on your device.
How much does a iRoamly eSIM for Japan cost?
iRoamly plans for Japan start from $0.60.
Can I use my iRoamly eSIM as soon as I arrive in Japan?
Yes, you can install your iRoamly eSIM before departure and activate it upon arrival in Japan. Activation is instant once connected to the local network.
How do I activate my iRoamly eSIM for Japan?
After purchase, you'll receive a QR code by email. Scan it in your phone settings (Settings > Cellular > Add eSIM Plan on iPhone). Activation takes less than 5 minutes.
Looking for a iRoamly eSIM for your trip to Japan in 2026? You're in the right place. eSIM Planet presents all iRoamly plans available for Japan, with the best prices and latest offers.
iRoamly is known for quality service and network coverage in Japan. Whether traveling for tourism or business, iRoamly plans keep you connected without exorbitant roaming fees from your home carrier.
The advantage of choosing a iRoamly eSIM for Japan? Instant activation, transparent prices from $0.60, and the ability to keep your home number. No need to search for a SIM shop at the airport or wait for delivery.
