Roamless keeps travelers connected seamlessly in 200+ countries through a single global eSIM. Choose FLEX for pay-as-you-go data that never expires or FIX for 30-day prepaid plans (or mix and match, as you wish). No SIM swaps, no hidden fees, no hassle—just simple, affordable internet wherever you go. Install once, use anytime, anywhere.
Roamless keeps travelers connected seamlessly in 200+ countries through a single global eSIM. Choose FLEX for pay-as-you-go data that never expires or FIX for 30-day prepaid plans (or mix and match, as you wish). No SIM swaps, no hidden fees, no hassle—just simple, affordable internet wherever you go. Install once, use anytime, anywhere.
Promo Code
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Roamless eSIM Data Plans for Japan
FREE Japan eSIM & Data
525MB
30
Days
$0.00
Pay-As-You-Go
New Users Only
Japan - No Expiration
1GB
∞
No expiry
$2.45
$2.45/GB
GET 20% OFF
Pay-As-You-Go
Japan - 30 Days
1GB
30
Days
$3.95
$3.95/GB
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Japan - No Expiration
2GB
∞
No expiry
$4.90
$2.45/GB
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Pay-As-You-Go
Asia & Oceania - 30 Days
1GB
30
Days
$4.95
$4.95/GB
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Japan - 30 Days
2GB
30
Days
$6.45
$3.23/GB
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Japan - No Expiration
3GB
∞
No expiry
$7.35
$2.45/GB
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Pay-As-You-Go
Japan - 30 Days
3GB
30
Days
$7.95
$2.65/GB
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Global - 30 Days
1GB
30
Days
$8.95
$8.95/GB
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Asia & Oceania - 30 Days
2GB
30
Days
$9.45
$4.73/GB
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Japan - No Expiration
4GB
∞
No expiry
$9.80
$2.45/GB
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Pay-As-You-Go
Japan - 30 Days
5GB
30
Days
$9.95
$1.99/GB
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Japan - No Expiration
5GB
∞
No expiry
$12.25
$2.45/GB
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Pay-As-You-Go
Asia & Oceania - 30 Days
3GB
30
Days
$12.45
$4.15/GB
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Japan - No Expiration
6GB
∞
No expiry
$14.70
$2.45/GB
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Pay-As-You-Go
Japan - 30 Days
10GB
30
Days
$14.95
$1.49/GB
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Global - 30 Days
2GB
30
Days
$16.45
$8.23/GB
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Japan - No Expiration
7GB
∞
No expiry
$17.15
$2.45/GB
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Pay-As-You-Go
Asia & Oceania - 30 Days
5GB
30
Days
$19.45
$3.89/GB
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Japan - No Expiration
8GB
∞
No expiry
$19.60
$2.45/GB
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Pay-As-You-Go
Japan - No Expiration
9GB
∞
No expiry
$22.05
$2.45/GB
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Pay-As-You-Go
Japan - 30 Days
20GB
30
Days
$22.95
$1.15/GB
GET 20% OFF
Global - 30 Days
3GB
30
Days
$23.95
$7.98/GB
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Japan - No Expiration
10GB
∞
No expiry
$24.50
$2.45/GB
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Pay-As-You-Go
Global - 30 Days
5GB
30
Days
$33.95
$6.79/GB
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Asia & Oceania - 30 Days
10GB
30
Days
$35.95
$3.60/GB
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Japan - No Expiration
15GB
∞
No expiry
$36.75
$2.45/GB
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Pay-As-You-Go
Asia & Oceania - 30 Days
20GB
30
Days
$47.95
$2.40/GB
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Japan - No Expiration
20GB
∞
No expiry
$49.00
$2.45/GB
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Pay-As-You-Go
Global - 30 Days
10GB
30
Days
$56.95
$5.70/GB
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Japan - No Expiration
25GB
∞
No expiry
$61.25
$2.45/GB
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Pay-As-You-Go
Global - 30 Days
20GB
30
Days
$69.95
$3.50/GB
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Japan - No Expiration
30GB
∞
No expiry
$73.50
$2.45/GB
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Pay-As-You-Go
Japan - No Expiration
35GB
∞
No expiry
$85.75
$2.45/GB
GET 20% OFF
Pay-As-You-Go
Japan - No Expiration
40GB
∞
No expiry
$98.00
$2.45/GB
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Pay-As-You-Go
Japan - No Expiration
45GB
∞
No expiry
$110.25
$2.45/GB
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Pay-As-You-Go
Japan - No Expiration
50GB
∞
No expiry
$122.50
$2.45/GB
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Pay-As-You-Go
Japan - No Expiration
100GB
∞
No expiry
$245.00
$2.45/GB
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Pay-As-You-Go
Japan - No Expiration
150GB
∞
No expiry
$367.50
$2.45/GB
GET 20% OFF
Pay-As-You-Go
Japan - No Expiration
200GB
∞
No expiry
$490.00
$2.45/GB
GET 20% OFF
Pay-As-You-Go
Unfiltered Customer Reviews
Share your own experience and help fellow travelers!
I tried ordering the FREE plan and set it up on my iPhone SE2. At first, the eSIM activation stayed in “processing on the server” status for about 10 minutes without any response, so I just left it for a while until it finally completed. After that, the phone stayed out of service and couldn’t connect to the network for over an hour. I had almost given up, but eventually, it just started working on its own.
In terms of speed, there were no issues. While using the service, I kept checking the data usage on the website, but after reaching 0.01GB, the connection stopped working completely. I thought maybe the usage display was just delayed, but even the next day, it hadn’t updated. It felt like I had used more data than what was shown, so the website’s usage display doesn’t seem very reliable.
Frequently Asked Questions
Does Roamless offer unlimited data eSIM for Japan?
Roamless does not offer a true unlimited data eSIM for Japan. All of its Japan plans have a fixed data cap, with the largest option giving 200GB of high‑speed data for a set price. The plans also have “Unlimited” validity, meaning the eSIM can remain active indefinitely once purchased, but the data allowance itself is capped. Travelers who need more data can choose from the high‑cap options, such as the 200GB plan priced at $490.00 USD or the 150GB plan at $367.50 USD. Selecting a fixed data plan may be more cost effective for most users unless they require an actual unlimited data allowance.
Does Roamless offer Japan eSIM with phone number and SMS?
Roamless does not offer any Japan eSIM plans that include a phone number or SMS capability. The provider supplies only data‑only eSIMs for Japan, so travelers cannot receive or make calls through a local phone number or send traditional SMS messages. Instead, users typically rely on data‑based messaging and voice services such as WhatsApp, Telegram, or iMessage to communicate while abroad.
How many data plans does Roamless offer for Japan?
Roamless currently offers 28 single-country data plans specifically for Japan, alongside 12 plans that include Japan as part of a wider multi-country coverage area. These plans range in price from $0.00 to $490.00 and offer data allowances between 525MB and 200GB. Some plans feature a pay-as-you-go option, while others provide a fixed data amount or a validity period ranging up to 30 days. Certain offers may be exclusively for new users, and tethering is generally allowed.
New Users Only
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