Firsty keeps travelers connected in 160+ countries with a single eSIM that automatically picks the best network. The free plan offers basic data for messaging, emails, and calls, with options to upgrade to faster speeds whenever needed. You can pay per day for extra flexibility, and leftover data can be reused on future trips, even in different countries. Plus, in-app support is available 24/7 in 80 languages, ensuring help is always at hand.
Firsty 
Firsty keeps travelers connected in 160+ countries with a single eSIM that automatically picks the best network. The free plan offers basic data for messaging, emails, and calls, with options to upgrade to faster speeds whenever needed. You can pay per day for extra flexibility, and leftover data can be reused on future trips, even in different countries. Plus, in-app support is available 24/7 in 80 languages, ensuring help is always at hand.
Firsty eSIM Data Plans for Japan
Firsty Free
Unlimited
1
Day
$0.00
Max speed: 256kbps
Includes Ads
Firsty Comfort+ (Japan) - 1 Day
1.5GB
+ ∞ at 512kbps
1
Day
$1.78
(€1.50)
$1.19/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 1 Day
5GB
+ ∞ at 512kbps
1
Day
$3.56
(€3.00)
$0.71/GB
Firsty Comfort+ (Japan) - 2 Days
1.5GB/day
+ ∞ at 512kbps
2
Days
$3.56
(€3.00)
$1.19/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 3 Days
1.5GB/day
+ ∞ at 512kbps
3
Days
$3.92
(€3.30)
$0.87/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 4 Days
1.5GB/day
+ ∞ at 512kbps
4
Days
$5.22
(€4.40)
$0.87/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 5 Days
1.5GB/day
+ ∞ at 512kbps
5
Days
$6.53
(€5.50)
$0.87/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 2 Days
5GB/day
+ ∞ at 512kbps
2
Days
$7.12
(€6.00)
$0.71/GB
Firsty First Class (Japan) - 3 Days
5GB/day
+ ∞ at 512kbps
3
Days
$7.83
(€6.60)
$0.52/GB
Firsty Comfort+ (Japan) - 6 Days
1.5GB/day
+ ∞ at 512kbps
6
Days
$7.83
(€6.60)
$0.87/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 7 Days
1.5GB/day
+ ∞ at 512kbps
7
Days
$9.14
(€7.70)
$0.87/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 8 Days
1.5GB/day
+ ∞ at 512kbps
8
Days
$9.97
(€8.40)
$0.83/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 4 Days
5GB/day
+ ∞ at 512kbps
4
Days
$10.45
(€8.80)
$0.52/GB
Firsty Comfort+ (Japan) - 9 Days
1.5GB/day
+ ∞ at 512kbps
9
Days
$11.22
(€9.45)
$0.83/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 10 Days
1.5GB/day
+ ∞ at 512kbps
10
Days
$12.46
(€10.50)
$0.83/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 5 Days
5GB/day
+ ∞ at 512kbps
5
Days
$13.06
(€11.00)
$0.52/GB
Firsty Comfort+ (Japan) - 11 Days
1.5GB/day
+ ∞ at 512kbps
11
Days
$13.71
(€11.55)
$0.83/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 12 Days
1.5GB/day
+ ∞ at 512kbps
12
Days
$14.96
(€12.60)
$0.83/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 6 Days
5GB/day
+ ∞ at 512kbps
6
Days
$15.67
(€13.20)
$0.52/GB
Firsty Comfort+ (Japan) - 13 Days
1.5GB/day
+ ∞ at 512kbps
13
Days
$16.20
(€13.65)
$0.83/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 14 Days
1.5GB/day
+ ∞ at 512kbps
14
Days
$17.45
(€14.70)
$0.83/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 7 Days
5GB/day
+ ∞ at 512kbps
7
Days
$18.28
(€15.40)
$0.52/GB
Firsty Comfort+ (Japan) - 15 Days
1.5GB/day
+ ∞ at 512kbps
15
Days
$18.70
(€15.75)
$0.83/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 16 Days
1.5GB/day
+ ∞ at 512kbps
16
Days
$18.99
(€16.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 8 Days
5GB/day
+ ∞ at 512kbps
8
Days
$19.94
(€16.80)
$0.50/GB
Firsty Comfort+ (Japan) - 17 Days
1.5GB/day
+ ∞ at 512kbps
17
Days
$20.18
(€17.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 18 Days
1.5GB/day
+ ∞ at 512kbps
18
Days
$21.37
(€18.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 9 Days
5GB/day
+ ∞ at 512kbps
9
Days
$22.44
(€18.90)
$0.50/GB
Firsty Comfort+ (Japan) - 19 Days
1.5GB/day
+ ∞ at 512kbps
19
Days
$22.55
(€19.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 20 Days
1.5GB/day
+ ∞ at 512kbps
20
Days
$23.74
(€20.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 10 Days
5GB/day
+ ∞ at 512kbps
10
Days
$24.93
(€21.00)
$0.50/GB
Firsty Comfort+ (Japan) - 21 Days
1.5GB/day
+ ∞ at 512kbps
21
Days
$24.93
(€21.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 22 Days
1.5GB/day
+ ∞ at 512kbps
22
Days
$26.12
(€22.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 23 Days
1.5GB/day
+ ∞ at 512kbps
23
Days
$27.30
(€23.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 11 Days
5GB/day
+ ∞ at 512kbps
11
Days
$27.42
(€23.10)
$0.50/GB
Firsty Comfort+ (Japan) - 24 Days
1.5GB/day
+ ∞ at 512kbps
24
Days
$28.49
(€24.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 25 Days
1.5GB/day
+ ∞ at 512kbps
25
Days
$29.68
(€25.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 12 Days
5GB/day
+ ∞ at 512kbps
12
Days
$29.91
(€25.20)
$0.50/GB
Firsty Comfort+ (Japan) - 26 Days
1.5GB/day
+ ∞ at 512kbps
26
Days
$30.86
(€26.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 27 Days
1.5GB/day
+ ∞ at 512kbps
27
Days
$32.05
(€27.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 13 Days
5GB/day
+ ∞ at 512kbps
13
Days
$32.41
(€27.30)
$0.50/GB
Firsty Comfort+ (Japan) - 28 Days
1.5GB/day
+ ∞ at 512kbps
28
Days
$33.24
(€28.00)
$0.79/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 29 Days
1.5GB/day
+ ∞ at 512kbps
29
Days
$34.43
(€29.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 14 Days
5GB/day
+ ∞ at 512kbps
14
Days
$34.90
(€29.40)
$0.50/GB
Firsty Comfort+ (Japan) - 30 Days
1.5GB/day
+ ∞ at 512kbps
30
Days
$35.61
(€30.00)
$0.79/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 15 Days
5GB/day
+ ∞ at 512kbps
15
Days
$37.39
(€31.50)
$0.50/GB
Firsty First Class (Japan) - 16 Days
5GB/day
+ ∞ at 512kbps
16
Days
$37.99
(€32.00)
$0.47/GB
Firsty First Class (Japan) - 17 Days
5GB/day
+ ∞ at 512kbps
17
Days
$40.36
(€34.00)
$0.47/GB
Firsty First Class (Japan) - 18 Days
5GB/day
+ ∞ at 512kbps
18
Days
$42.74
(€36.00)
$0.47/GB
Firsty First Class (Japan) - 19 Days
5GB/day
+ ∞ at 512kbps
19
Days
$45.11
(€38.00)
$0.47/GB
Firsty First Class (Japan) - 20 Days
5GB/day
+ ∞ at 512kbps
20
Days
$47.48
(€40.00)
$0.47/GB
Firsty First Class (Japan) - 21 Days
5GB/day
+ ∞ at 512kbps
21
Days
$49.86
(€42.00)
$0.47/GB
Firsty First Class (Japan) - 22 Days
5GB/day
+ ∞ at 512kbps
22
Days
$52.23
(€44.00)
$0.47/GB
Firsty First Class (Japan) - 23 Days
5GB/day
+ ∞ at 512kbps
23
Days
$54.61
(€46.00)
$0.47/GB
Firsty First Class (Japan) - 24 Days
5GB/day
+ ∞ at 512kbps
24
Days
$56.98
(€48.00)
$0.47/GB
Firsty First Class (Japan) - 25 Days
5GB/day
+ ∞ at 512kbps
25
Days
$59.35
(€50.00)
$0.47/GB
Firsty First Class (Japan) - 26 Days
5GB/day
+ ∞ at 512kbps
26
Days
$61.73
(€52.00)
$0.47/GB
Firsty First Class (Japan) - 27 Days
5GB/day
+ ∞ at 512kbps
27
Days
$64.10
(€54.00)
$0.47/GB
Firsty First Class (Japan) - 28 Days
5GB/day
+ ∞ at 512kbps
28
Days
$66.48
(€56.00)
$0.47/GB
Firsty First Class (Japan) - 29 Days
5GB/day
+ ∞ at 512kbps
29
Days
$68.85
(€58.00)
$0.47/GB
Firsty First Class (Japan) - 30 Days
5GB/day
+ ∞ at 512kbps
30
Days
$71.23
(€60.00)
$0.47/GB
Frequently Asked Questions
Does Firsty offer unlimited data eSIM for Japan?
Firsty offers an unlimited‑data eSIM plan for Japan called Firsty Free. The plan is free of charge, valid for 1 day and covers Japan as well as 48 other countries. It includes advertising, and the network speed may be throttled to a maximum of 256 kbps. Because the plan carries a fair‑usage policy, speeds can be reduced after heavy usage. Travelers who are concerned about possible speed restrictions should contact Firsty to confirm the extent of any FUP and the amount of data that can be used at normal speed.
Does Firsty offer Japan eSIM with phone number and SMS?
Firsty does not offer a Japan eSIM that includes a phone number with SMS. The provider supplies only data‑only eSIMs in Japan. Travelers can use popular VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for voice calls and messaging, but the plan does not provide a native phone number or SMS capability.
How many data plans does Firsty offer for Japan?
Firsty offers a total of 61 data plans for Japan, comprised of 60 single-country plans and 1 multi-country plan. The available plans range in price from $0.00 to $68.54 and offer data allowances between 1.5GB and unlimited data. Many plans (58 total) feature a daily data cap, while a smaller number (3 plans) provide a fixed data allowance for the duration of the plan’s validity. Some plans may include advertisements or experience reduced speeds after a certain data usage, with speed limits of 256 or 5000 kbps, or a reduced speed of 512 kbps.
Summarized by Gen AI. Last updated:
Japan Also Covered By
Other Countries Nearby Japan
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