Top pick01
Saily
10 GB, 30 days
$16.34
$1.63 / GB
Asia
Best Japan eSIM
From $0.58 · 42 carriers · 4,202 plans
Updated August 18, 2026
Top 4 recommended
View dealDeal
#202
GoMoWorld
14 GB, 30 days
$11.98
$0.86 / GB
#303
Voila
1 GB, 7 days
$1.42
$1.42 / GB
#404
NA
Nadanada
2 GB, 15 days
$3.99
$2.00 / GB
Full comparison
All Japan eSIM plans
Recommended sort. USD prices. Updated August 18, 2026.
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FAQ
Japan eSIM, answered
What is the cheapest eSIM for Japan?+
Plans start from $0.58. Use our comparator to find the best price per GB for your trip duration.
How do I activate an eSIM in Japan?+
Purchase online, receive a QR code by email, scan it in your phone settings, and enable the eSIM line when you arrive.
Is there a promo code for Japan eSIM plans?+
Yes. Use code ESIMP at checkout on participating carriers for verified discounts on Japan plans.