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🇯🇵 Japan eSIM

Japan eSIM:
43 plans compared at a glance.

Compare Airalo, Saily and Yesim · From US$3.99 · From US$1.20 per GB · Shown in US dollars

Prices updated regularlyAiralo 2026-10-13· Saily 2026-10-12· Yesim 2026-10-12
Quick answer:For a light week, choose Saily 1GB · 7 days US$3.99; for the best value per GB, choose Airalo 20GB · 15 days US$24.00; if you'd rather not count data, choose Airalo Unlimited · 7 days, US$26.50.
Best value per GB
US$1.20 / GB, from
Airalo 20GB · 15 days
Best value per GB
Airalo · 20GB · 15 days
KDDI, SoftBank · 5G
US$24.00
US$1.20 / GB
Go to Airalo
Lowest total price
Saily · 1GB · 7 days
Network not published
US$3.99
US$0.57 / day
Go to Saily →
Unlimited data · 7 days
Airalo · Unlimited data · 7 days
KDDI, SoftBank · 5G
US$26.50
US$3.79 / day
Go to Airalo →
Filters ⚙
#
Provider / Plan
Data
Days
Per GB
Per day
Price
#1
20 GB
15 days
US$1.20
US$1.60
US$24.00 →
Coverage🇯🇵 Japan
NetworkKDDI, SoftBank
Speed5G
Calls / SMSNot included (data only)
Original priceUS$24.00
Price updated: 2026-10-13
#2
20 GB
30 days
US$1.25
US$0.83
US$24.99 →
#3
20 GB
30 days
US$1.25
US$0.83
US$25.00 →
#4
30 GB
30 days
US$1.32
US$1.32
US$39.60 →
#5
20 GB
30 days
US$1.49
US$0.99
US$29.76 →
#6
10 GB
7 days
US$1.70
US$2.43
US$17.00 →
#7
10 GB
15 days
US$1.75
US$1.17
US$17.50 →
#8
10 GB
30 days
US$1.80
US$0.60
US$17.99 →
#9
10 GB
30 days
US$1.80
US$0.60
US$18.00 →
#10
10 GB
30 days
US$1.92
US$0.64
US$19.20 →
Airalo · 20GB · 15 days5GKDDI, SoftBank · Best value per GB
#1
Per GBUS$1.20
Per dayUS$1.60
TotalUS$24.00
Go to Airalo
Saily · 20GB · 30 daysNetwork not published
#2
Per GBUS$1.25
Per dayUS$0.83
TotalUS$24.99
Go to Saily
Airalo · 20GB · 30 days5GKDDI, SoftBank
#3
Per GBUS$1.25
Per dayUS$0.83
TotalUS$25.00
Go to Airalo
Yesim · 30GB · 30 days5GKDDI
#4
Per GBUS$1.32
Per dayUS$1.32
TotalUS$39.60
Go to Yesim
Yesim · 20GB · 30 days5GKDDI
#5
Per GBUS$1.49
Per dayUS$0.99
TotalUS$29.76
Go to Yesim
Airalo · 10GB · 7 days5GKDDI, SoftBank
#6
Per GBUS$1.70
Per dayUS$2.43
TotalUS$17.00
Go to Airalo
Airalo · 10GB · 15 days5GKDDI, SoftBank
#7
Per GBUS$1.75
Per dayUS$1.17
TotalUS$17.50
Go to Airalo
Saily · 10GB · 30 daysNetwork not published
#8
Per GBUS$1.80
Per dayUS$0.60
TotalUS$17.99
Go to Saily
Airalo · 10GB · 30 days5GKDDI, SoftBank
#9
Per GBUS$1.80
Per dayUS$0.60
TotalUS$18.00
Go to Airalo
Yesim · 10GB · 30 days5GKDDI
#10
Per GBUS$1.92
Per dayUS$0.64
TotalUS$19.20
Go to Yesim
Showing 10 of 43 plans (22 unlimited data plans listed separately)

Prices change; the provider's checkout page shows the final price.

Choose by trip

Which plan suits you?

Day trip / Stopover
Yesim Unlimited · 1 day US$4.20
Cheapest of the 1–2 day plans, no need to count data
1 week, light use
Saily 1GB · 7 days US$3.99
Lowest total price of the 7–10 day plans (US$0.57 / day)
1 week, normal use
Airalo 5GB · 7 days US$10.00
5G, US$2.00 / GB
2 weeks
Airalo 20GB · 15 days US$24.00
Best value per GB of the 14–20 day plans (US$1.20)
1 month
Saily 10GB · 30 days US$17.99
Cheapest for 1 month with 10GB or more (US$1.80 / GB)
Heavy use / Hotspot
Airalo Unlimited · 7 days US$26.50
Cheapest 7-day unlimited plan; check the provider's details for hotspot use
Providers

Japan eSIM providers

Airalo
17 plans · 3–30 days · from US$4.00
5GKDDISoftBankBest value per GB

Network published for all plans (KDDI, SoftBank); 5G supported; 20GB · 15 days is the best value per GB in Japan (US$1.20).

Price updated 2026-10-13
Saily
12 plans · 5–30 days · from US$3.99
Network not publishedLowest total price

Network not published; 5G details not published; Lowest starting price (1GB · 7 days, US$3.99).

Price updated 2026-10-12
Yesim
14 plans · 1–30 days · from US$4.20
5GKDDI1-day unlimited

Network published for all plans (KDDI); 5G supported.

Price updated 2026-10-12
Setup

Use an eSIM in 3 steps

01
Scan the QR code before you go
Install the eSIM on Wi-Fi.
02
Check how it activates
Some plans start on the purchase date, others when you first connect.
03
Turn on data when you land
Your own SIM stays in, and WhatsApp keeps working.
FAQ

Japan eSIM FAQ

How much is an eSIM for Japan?

From US$3.99 (Saily 1GB · 7 days). 7-day unlimited data from US$26.50 (Airalo). Prices updated: Airalo 2026-10-13 · Saily 2026-10-12 · Yesim 2026-10-12.

Which network does a Japan eSIM use?

The Japan plans in our database use KDDI, SoftBank. Where a provider hasn't published it, the table shows "Network not published". The Japan plans we list run on SoftBank or KDDI (au). Which network a plan uses depends on the provider, so check the plan details.

How much data do I need for 7 days in Japan?

For maps, messaging and light browsing, about 0.3–0.5GB a day, so 3–5GB is enough for 7 days. If you often watch videos or share a hotspot, consider unlimited data. To save money, choose Airalo 20GB · 15 days, the best value per GB (US$1.20 / GB).

Can I share a hotspot? Will I keep my phone number?

Most providers don't list hotspot limits in their details, so please read the plan details before you buy. A travel eSIM is data only and works alongside your own SIM, so WhatsApp keeps working. Calls and SMS to your usual number still go through your own carrier (roaming charges may apply).

Coverage: The Japan plans we list run on SoftBank or KDDI (au). Which network a plan uses depends on the provider, so check the plan details.
Japan eSIM guides: Airalo vs Saily for Japan: which eSIM should you buy? · Best eSIM for Japan (2026): prices for every trip length
Prices checked: Airalo 2026-10-13 · Saily 2026-10-12 · Yesim 2026-10-12

Japan eSIM in numbers

Plans
43 plans from 3 providers (Airalo, Saily, Yesim)
Cheapest plan by trip length
3 days: Airalo 1GB US$4.00; 7 days: Saily 1GB US$3.99; 15 days: Airalo 5GB US$10.50; 30 days: Yesim 1GB US$4.44
Price per GB (fixed-data plans)
US$1.20 – US$4.44
Unlimited data
22 plans, 1–30 days, from US$4.20
Networks (by provider)
Airalo: KDDI, SoftBank; Saily: not stated; Yesim: KDDI
Plans marked 5G
31 of 43
Plans with calls
0 of 43

Nearby destinations

South Korea eSIM
Asia

Where else are you going?

All destinations →
South Korea
Old palaces, red leaves, slow city walks
From US$0.98 per GB43 plans · from US$3.00
Taiwan
Night-market snacks, an easy trip any time
From US$0.80 per GB40 plans · from US$3.00
Thailand
Temples and islands, a warm holiday
From US$0.55 per GB45 plans · from US$2.99
Singapore
The garden city, worth a stopover
From US$0.96 per GB44 plans · from US$3.00