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.
Code ESIMP15
eSIM Airalo Japan 2026: best data plans, code ESIMP15 (-15%)
Save up to 15% on your Airalo eSIM for Japan. Exclusive verified offer.
About Airalo
Airalo is an eSIM provider for travel to Japan. Global leader + 5G
Best-value Airalo plan for Japan
Not sure which eSIM plan to choose for Japan? We'll hand-pick the best ones just for you
Personalised selection with promo codes & direct links, then reminders before you leave
All eSIM plans for Japan by Airalo in 2026
30 plans found · Last update:
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| # | Plan | Data | Duration | Price/GB | Code | Price | Action |
|---|---|---|---|---|---|---|---|
1 |  Asialink - 1 GB AiraloKDDI Coverage:  | 1.00GB | 7 days | $4.25 | -15% | $4.25$5.00 | |
2 | Moshi Moshi - 1 GB AiraloSoftBank, KDDI Coverage: | 1.00GB | 3 days | $3.40 | -15% | $3.40$4.00 | |
3 | Moshi Moshi - 3 GB AiraloSoftBank, KDDI Coverage: | 3.00GB | 7 days | $2.27 | -15% | $6.80$8.00 | |
4 | Discover - 1 GB5G AiraloSoftBank Corp., KDDI Coverage: | 1.00GB | 7 days | $7.23 | -15% | $7.23$8.50 | |
5 | Moshi Moshi - 3 GB AiraloSoftBank, KDDI Coverage: | 3.00GB | 3 days | $2.13 | -15% | $6.38$7.50 | |
6 | Moshi Moshi - 5 GB AiraloSoftBank, KDDI Coverage: | 5.00GB | 7 days | $1.70 | -15% | $8.50$10.00 | |
7 | Asialink - 2 GB AiraloKDDI Coverage: | 2.00GB | 15 days | $4.04 | -15% | $8.08$9.50 | |
8 | Moshi Moshi - 5 GB AiraloSoftBank, KDDI Coverage: | 5.00GB | 15 days | $1.78 | -15% | $8.92$10.50 | |
9 | Moshi Moshi - 5 GB AiraloSoftBank, KDDI Coverage: | 5.00GB | 30 days | $1.87 | -15% | $9.35$11.00 | |
10 | Moshi Moshi - Unlimited5G AiraloSoftBank, KDDI Coverage: | Unlimited | 3 days | ∞ | -15% | $9.78$11.50 | |
11 | Asialink - 3 GB AiraloKDDI Coverage: | 3.00GB | 30 days | $3.68 | -15% | $11.05$13.00 | |
12 | Discover+ - 1 GB5G AiraloKDDI, SoftBank Coverage: | 1.00GB | 7 days | $12.75 | -15% | $12.75$15.00 | |
13 | Moshi Moshi - 10 GB AiraloSoftBank, KDDI Coverage: | 10.00GB | 7 days | $1.44 | -15% | $14.45$17.00 | |
14 | Discover - 2 GB5G AiraloSoftBank Corp., KDDI Coverage: | 2.00GB | 15 days | $7.01 | -15% | $14.03$16.50 | |
15 | Moshi Moshi - 10 GB AiraloSoftBank, KDDI Coverage: | 10.00GB | 15 days | $1.49 | -15% | $14.88$17.50 |
#1
Asialink - 1 GB
Airalo · KDDI
Coverage:
Data
1.00GB
Duration
7 days
Price/GB
$4.25
Code-15% With discount
$4.25
$5.00
#2
Moshi Moshi - 1 GB
Airalo · SoftBank, KDDI
Coverage:
Data
1.00GB
Duration
3 days
Price/GB
$3.40
Code-15% With discount
$3.40
$4.00
#3
Moshi Moshi - 3 GB
Airalo · SoftBank, KDDI
Coverage:
Data
3.00GB
Duration
7 days
Price/GB
$2.27
Code-15% With discount
$6.80
$8.00
#4
5GDiscover - 1 GB
Airalo · SoftBank Corp., KDDI
Coverage:
Data
1.00GB
Duration
7 days
Price/GB
$7.23
Code-15% With discount
$7.23
$8.50
#5
Moshi Moshi - 3 GB
Airalo · SoftBank, KDDI
Coverage:
Data
3.00GB
Duration
3 days
Price/GB
$2.13
Code-15% With discount
$6.38
$7.50
#6
Moshi Moshi - 5 GB
Airalo · SoftBank, KDDI
Coverage:
Data
5.00GB
Duration
7 days
Price/GB
$1.70
Code-15% With discount
$8.50
$10.00
#7
Asialink - 2 GB
Airalo · KDDI
Coverage:
Data
2.00GB
Duration
15 days
Price/GB
$4.04
Code-15% With discount
$8.08
$9.50
#8
Moshi Moshi - 5 GB
Airalo · SoftBank, KDDI
Coverage:
Data
5.00GB
Duration
15 days
Price/GB
$1.78
Code-15% With discount
$8.92
$10.50
#9
Moshi Moshi - 5 GB
Airalo · SoftBank, KDDI
Coverage:
Data
5.00GB
Duration
30 days
Price/GB
$1.87
Code-15% With discount
$9.35
$11.00
#10
5GMoshi Moshi - Unlimited
Airalo · SoftBank, KDDI
Coverage:
Data
Unlimited
Duration
3 days
Price/GB
∞
Code-15% With discount
$9.78
$11.50
#11
Asialink - 3 GB
Airalo · KDDI
Coverage:
Data
3.00GB
Duration
30 days
Price/GB
$3.68
Code-15% With discount
$11.05
$13.00
#12
5GDiscover+ - 1 GB
Airalo · KDDI, SoftBank
Coverage:
Data
1.00GB
Duration
7 days
Price/GB
$12.75
Code-15% With discount
$12.75
$15.00
#13
Moshi Moshi - 10 GB
Airalo · SoftBank, KDDI
Coverage:
Data
10.00GB
Duration
7 days
Price/GB
$1.44
Code-15% With discount
$14.45
$17.00
#14
5GDiscover - 2 GB
Airalo · SoftBank Corp., KDDI
Coverage:
Data
2.00GB
Duration
15 days
Price/GB
$7.01
Code-15% With discount
$14.03
$16.50
#15
Moshi Moshi - 10 GB
Airalo · SoftBank, KDDI
Coverage:
Data
10.00GB
Duration
15 days
Price/GB
$1.49
Code-15% With discount
$14.88
$17.50
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 Airalo for Japan?
Airalo is a reliable eSIM provider for Japan. With 30 plans from $3.40, you can pick what fits your trip.
Plans from $3.40 for Japan
Instant QR activation
Solid 4G/5G coverage
Responsive support
Keep your main number on the primary SIM
No hidden fees
FAQ Airalo and Japan
What coverage does Airalo offer in Japan?
Airalo uses local networks for strong 4G/LTE; 5G depends on the network and your device.
How much is a Airalo eSIM for Japan?
Plans start from $3.40. Prices on eSIM Planet are refreshed regularly.
Can I activate when I land in Japan?
Yes. Install before travel if you like, then activate once you connect to the local network.
How do I activate my Airalo eSIM?
After purchase, scan the QR from email (Settings > Cellular > Add eSIM on iPhone).
Does Airalo cover more than Japan?
Airalo also sells regional or global plans. Check included destinations before buying.
Looking for the best Airalo eSIM plans for Japan in 2026? eSIM Planet compares live offers from $3.40, with activation in minutes.
Airalo uses dependable local networks in Japan, ideal for leisure or business without painful roaming charges.
Clear pricing, QR activation, and app management: travel light and keep your primary number on the physical SIM.
Verified promo: enter ESIMP15 at checkout on Airalo for 15% off (tested by eSIM Planet).
