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 unlimited eSIM plans for Japan in 2026
296 plans found · Last update:
| # | Plan | Data | Duration | Price/GB | Promo code | Price |
|---|---|---|---|---|---|---|
1 |  Oneoff Forfait eSIM prépayée - Données illimitées | Ubigi Ubigi | Unlimited | 7 days | ∞ | -10% | $27.25$30.28 |
2 |  15 days - Unlimited5G Saily | Unlimited | 15 days | ∞ | -5% | $46.97$49.44 |
3 |  Japan 30 Days Unlimited Data Voyeglobal | 60.00GB | 30 days | $0.62 | -20% | $37.06$46.33 |
4 | Japan 20 Days Unlimited Voyeglobal | 40.00GB | 20 days | $0.68 | -20% | $27.25$34.06 |
5 | Japan 15 Days Unlimited Data Voyeglobal | 30.00GB | 15 days | $0.73 | -20% | $21.80$27.25 |
6 |  Japan 3GB/Day Esimflare | 42.00GB | 14 days | $1.10 | -10% | $46.20$51.33 |
7 | Japan 3GB/Day (IIJ) Esimflare | 42.00GB | 14 days | $1.10 | -10% | $46.20$51.33 |
8 | Japan 10 Days Unlimited Data Voyeglobal | 20.00GB | 10 days | $0.82 | -20% | $16.35$20.44 |
9 | Japan 3GB/Day (nonhkip) Esimflare | 42.00GB | 14 days | $1.19 | -10% | $50.00$55.56 |
10 | Japan 2GB/Day (nonhkip) Esimflare | 28.00GB | 14 days | $1.38 | -10% | $38.70$43.00 |
11 | Japan 1GB/Day (nonhkip) Esimflare | 14.00GB | 14 days | $1.44 | -10% | $20.20$22.44 |
12 | Japan 10GB/Day (nonhkip) Esimflare | 70.00GB | 7 days | $0.73 | -10% | $50.90$56.56 |
13 | Japan 5GB/Day (nonhkip) Esimflare | 50.00GB | 10 days | $1.06 | -10% | $52.80$58.67 |
14 | Japan 1GB/Day (IIJ) Esimflare | 14.00GB | 14 days | $1.50 | -10% | $21.00$23.33 |
15 | Japan 1GB/Day Esimflare | 14.00GB | 14 days | $1.50 | -10% | $21.00$23.33 |
#1
Oneoff Forfait eSIM prépayée - Données illimitées | Ubigi
Ubigi
Data
Unlimited
Duration
7 days
Price/GB
∞
Promo code-10% With promo
$27.25
$30.28
#2
5G15 days - Unlimited
Saily
Data
Unlimited
Duration
15 days
Price/GB
∞
Promo code-5% With promo
$46.97
$49.44
#3
Japan 30 Days Unlimited Data
Voyeglobal
Data
60.00GB
Duration
30 days
Price/GB
$0.62
Promo code-20% With promo
$37.06
$46.33
#4
Japan 20 Days Unlimited
Voyeglobal
Data
40.00GB
Duration
20 days
Price/GB
$0.68
Promo code-20% With promo
$27.25
$34.06
#5
Japan 15 Days Unlimited Data
Voyeglobal
Data
30.00GB
Duration
15 days
Price/GB
$0.73
Promo code-20% With promo
$21.80
$27.25
#6
Japan 3GB/Day
Esimflare
Data
42.00GB
Duration
14 days
Price/GB
$1.10
Promo code-10% With promo
$46.20
$51.33
#7
Japan 3GB/Day (IIJ)
Esimflare
Data
42.00GB
Duration
14 days
Price/GB
$1.10
Promo code-10% With promo
$46.20
$51.33
#8
Japan 10 Days Unlimited Data
Voyeglobal
Data
20.00GB
Duration
10 days
Price/GB
$0.82
Promo code-20% With promo
$16.35
$20.44
#9
Japan 3GB/Day (nonhkip)
Esimflare
Data
42.00GB
Duration
14 days
Price/GB
$1.19
Promo code-10% With promo
$50.00
$55.56
#10
Japan 2GB/Day (nonhkip)
Esimflare
Data
28.00GB
Duration
14 days
Price/GB
$1.38
Promo code-10% With promo
$38.70
$43.00
#11
Japan 1GB/Day (nonhkip)
Esimflare
Data
14.00GB
Duration
14 days
Price/GB
$1.44
Promo code-10% With promo
$20.20
$22.44
#12
Japan 10GB/Day (nonhkip)
Esimflare
Data
70.00GB
Duration
7 days
Price/GB
$0.73
Promo code-10% With promo
$50.90
$56.56
#13
Japan 5GB/Day (nonhkip)
Esimflare
Data
50.00GB
Duration
10 days
Price/GB
$1.06
Promo code-10% With promo
$52.80
$58.67
#14
Japan 1GB/Day (IIJ)
Esimflare
Data
14.00GB
Duration
14 days
Price/GB
$1.50
Promo code-10% With promo
$21.00
$23.33
#15
Japan 1GB/Day
Esimflare
Data
14.00GB
Duration
14 days
Price/GB
$1.50
Promo code-10% With promo
$21.00
$23.33
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.
