TOP 1
€4.50
Duration7 days
DataUnlim.
CocoRoam
All Japan Unlimited Plans (660)
Unlimited data plans sorted by price. Enjoy exclusive promo codes.
2
Asia (10+ Regions)
RedteaGO
Regional
€0.58
€0.64
Coverage
+9
+9Data Unlimited
Duration 1 day
Price/GB -
5G —
3
eSIM Japan - 1 Day / Unlimited5G
abesteSIMKDDI
Hotspot
€1.62
€1.80
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
4
eSIM Japan - 1 Day / Unlimited5G
ASIMGOKDDI
Hotspot
€1.69
€1.88
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
5
CocoRoam Unlimited 1d5G
CocoRoamNTT Docomo
HotspotFair use
€2.29
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
6
eSIM Japan（Local IP, Unlimited Data） - 1 Day / Unlimited5G
abesteSIMNTT Docomo, Iij
Hotspot
€2.10
€2.34
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
7
CocoRoam Unlimited 1d · plus5G
CocoRoamNTT Docomo
HotspotFair use
€2.57
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
8
Japan-eSIM-Unlimited-1 Day-Daily5G
iRoamlyKDDI, SoftBank
€2.57
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
9
Japan-eSIM-Unlimited-1 Day-Daily5G
iRoamlyKDDI, SoftBank
€2.57
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
10
eSIM Japan & South Korea - 1 Day / Unlimited5G
abesteSIMKDDI
HotspotRegional
€2.34
€2.60
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
11
CocoRoam Unlimited 1d · premium5G
CocoRoamNTT Docomo
HotspotFair use
€2.66
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
12
CocoRoam Unlimited 2d5G
CocoRoamNTT Docomo
HotspotFair use
€2.84
Coverage
Data Unlimited
Duration 2 days
Price/GB -
5G Yes
13
Japan – 1 jours5G
GigSkyNTT Docomo
Fair use
€2.52
€2.97
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
15
CocoRoam Unlimited 3d5G
CocoRoamNTT Docomo
HotspotFair use
€3.03
Coverage
Data Unlimited
Duration 3 days
Price/GB -
5G Yes
16
Unlimited Data - 1 Days5G
RoamifyKDDI
€2.90
€3.05
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
17
Japan-Local-eSIM-Unlimited-1 Day-Daily5G
iRoamlyNTT Docomo
€3.21
Coverage
Data Unlimited
Duration 1 day
Price/GB -
5G Yes
18
Global (130+ areas)
RedteaGO
Global
€2.89
€3.21
Coverage
+135
+135Data Unlimited
Duration 1 day
Price/GB -
5G —
19
CocoRoam Unlimited 2d · plus5G
CocoRoamNTT Docomo
HotspotFair use
€3.49
Coverage
Data Unlimited
Duration 2 days
Price/GB -
5G Yes
20
CocoRoam Unlimited 4d5G
CocoRoamNTT Docomo
HotspotFair use
€3.49
Coverage
Data Unlimited
Duration 4 days
Price/GB -
5G Yes
Japan Unlimited eSIM Comparison 2026
Unlimited eSIM plans for Japan are the ideal solution for travelers who don't want to worry about their data usage. Stream, video call and work remotely — subject to each provider's fair-use policy.
Our partners like Holafly, Saily and Airalo offer quality unlimited plans with 4G/5G coverage. Compare prices and durations to find the perfect plan for your stay.
Unlimited data
Subject to provider fair-use policy
National coverage
Depends on the plan’s partner networks
Frequently Asked Questions
Plans marked "unlimited" usually have no advertised volume cap, but remain subject to each provider's fair-use policy — often around 1 GB/day. Check the provider's terms before purchase.