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Features
Quick start
How will you use your eSIM?
For light use
Good for WhatsApp, maps, email and basic browsing.
1 recommended from 3 options
For everyday use
Better for social media, regular browsing and longer days out.
1 recommended from 1 option
For heavy use
For hotspot, video calls, streaming and longer stays.
1 recommended from 2 options
Unlimited options
Unlimited plans with fair-use details shown where available.
1 recommended from 4 options
All plans
Compare Japan eSIM plans
Filter by data, duration or plan type to narrow the list.
What's included
-
30-day refund guarantee If your eSIM isn't used, get a full refund within 30 days.
-
UK-based customer support Real people in the UK, reachable by email when you need help.
-
Set up in 60 seconds Install before you travel and connect automatically when you land.
Top picks for your trip
Based on what you've selected
Data
1GB
Validity
7 days
Network
NTT docomo
Price
$2.02
$2.02
$2.02
$2.02/GB
$0.29/day
0% off applied
Data
1GB
Validity
7 days
Price
$2.02
$2.02
$2.02
$2.02/GB
$0.29/day
0% off
Plan type: Data only
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Data
5GB
Validity
30 days
Network
NTT docomo
Price
$2.99
$2.99
$2.99
$0.60/GB
$0.100/day
0% off applied
Data
5GB
Validity
30 days
Price
$2.99
$2.99
$2.99
$0.60/GB
$0.100/day
0% off
Plan type: Data only
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Data
3GB
Validity
15 days
Network
NTT docomo
Price
$4.05
$4.05
$4.05
$1.35/GB
$0.27/day
0% off applied
Data
3GB
Validity
15 days
Price
$4.05
$4.05
$4.05
$1.35/GB
$0.27/day
0% off
Plan type: Data only
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Data
10GB
Validity
30 days
Network
NTT docomo
Price
$7.21
$7.21
$7.21
$0.72/GB
$0.24/day
0% off applied
Data
10GB
Validity
30 days
Price
$7.21
$7.21
$7.21
$0.72/GB
$0.24/day
0% off
Plan type: Data only
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Data
20GB
Validity
30 days
Network
NTT docomo
Price
$11.37
$11.37
$11.37
$0.57/GB
$0.38/day
0% off applied
Data
20GB
Validity
30 days
Price
$11.37
$11.37
$11.37
$0.57/GB
$0.38/day
0% off
Plan type: Data only
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Data
Unlimited
Validity
5 days
Fair use
?
2GB / day
then 512kbps
Price
$11.73
$11.73
$11.73
$2.35/day
0% off applied
Data
Unlimited
Validity
5 days
Price
$11.73
$11.73
$11.73
$2.35/day
0% off
High-speed data: 2GB / day
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Data
Unlimited
Validity
7 days
Fair use
?
2GB / day
then 512kbps
Price
$16.29
$16.29
$16.29
$2.33/day
0% off applied
Data
Unlimited
Validity
7 days
Price
$16.29
$16.29
$16.29
$2.33/day
0% off
High-speed data: 2GB / day
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Data
50GB
Validity
30 days
Network
NTT docomo
Price
$22.08
$22.08
$22.08
$0.44/GB
$0.74/day
0% off applied
Data
50GB
Validity
30 days
Price
$22.08
$22.08
$22.08
$0.44/GB
$0.74/day
0% off
Plan type: Data only
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Network: NTT docomo
Speed: 4G
Internet breakout: Japan
Top-up available
Hotspot supported
Data
Unlimited
Validity
10 days
Fair use
?
2GB / day
then 512kbps
Price
$23.12
$23.12
$23.12
$2.31/day
0% off applied
Data
Unlimited
Validity
10 days
Price
$23.12
$23.12
$23.12
$2.31/day
0% off
High-speed data: 2GB / day
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Data
Unlimited
Validity
15 days
Fair use
?
2GB / day
then 512kbps
Price
$34.14
$34.14
$34.14
$2.28/day
0% off applied
Data
Unlimited
Validity
15 days
Price
$34.14
$34.14
$34.14
$2.28/day
0% off
High-speed data: 2GB / day
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
Then unlimited at: 512kbps
Plan type: Data only
Internet breakout: Singapore
Hotspot supported
No plans match these filters
Try widening your search or browsing all plans.
Popular destinations
Staying connected in Japan
A quick look at what the eSIM plans for Japan in our index offer, plus a few practical essentials for your trip.
Networks the plans use
au by KDDI
3G / LTE / 4G / 5G
IIJ
LTE / 4G
NTT DOCOMO
LTE / 4G / 5G
Rakuten
4G / 5G
SoftBank
LTE / 4G / 5G
Based on the plans currently listed for Japan in our index. Network details are provided by suppliers and may change.
Travel essentials
- CurrencyJapanese yen (JPY)
- Dialling code+81
- Local timeJST (GMT+9)
- LanguageJapanese
Guides for visiting Japan
How much travel data do you really need abroad?
From Google Maps and WhatsApp to streaming, hotspotting and remote work, travel data usage varies far more tha...
Read guide →Do you actually need calls and SMS on a travel eSIM?
Many travel eSIMs are data only, which often raises the same question for travellers before a trip: what happe...
Read guide →What is an eSIM and how does it work?
eSIMs are becoming increasingly common for travel, but many people still are not entirely sure how they work....
Read guide →eSIM vs roaming vs local SIM: how to stay connected abroad
Three ways to get online when you travel: switch on roaming, grab a local SIM on arrival or set up an eSIM bef...
Read guide →Astaroam eSIM plans for Japan
Astaroam offers 10 eSIM plans for Japan, with data from 1GB up to 50GB, plus an unlimited data option. Prices range from £1.49 to £25.23. Validity runs from 5 to 30 days. All Astaroam plans for Japan are travel eSIMs, so you can install before you fly and activate on arrival, with no physical SIM and no roaming charges.
Provider
Astaroam
Plans for Japan
10
From
£1.49
Data
1GB to 50GB + unlimited
Validity
5 to 30 days
Compare every Astaroam plan for Japan by data, validity and price. Install your eSIM before you travel, then activate it when you arrive.
Astaroam Japan eSIM: common questions
Astaroam currently offers 10 plans for Japan, including plans from 1GB up to 50GB, plus an unlimited option. Prices start from £1.49.
The lowest priced Astaroam plan for Japan starts at £1.49. Larger data allowances and longer validity options cost more, so you can pick the plan that fits your trip.
Astaroam plans for Japan range from 5 to 30 days of validity, so you can match the plan to how long you are travelling. Validity usually begins when the eSIM first connects to a network, but check the individual plan details to be sure.
Yes, Astaroam offers at least one unlimited data plan for Japan. Unlimited plans may apply a fair use policy on high speed data, so it is worth checking the plan details.
After buying, you install the Astaroam eSIM on a compatible, network unlocked phone, usually by scanning a QR code or through an app. Install before you travel, then it activates when you arrive in Japan. No physical SIM is needed.