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
$1.74
(€1.50)
$1.16/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 1 Day
5GB
+ ∞ at 512kbps
1
Day
$3.48
(€3.00)
$0.70/GB
Firsty Comfort+ (Japan) - 2 Days
1.5GB/day
+ ∞ at 512kbps
2
Days
$3.48
(€3.00)
$1.16/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 3 Days
1.5GB/day
+ ∞ at 512kbps
3
Days
$3.83
(€3.30)
$0.85/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 4 Days
1.5GB/day
+ ∞ at 512kbps
4
Days
$5.10
(€4.40)
$0.85/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 5 Days
1.5GB/day
+ ∞ at 512kbps
5
Days
$6.38
(€5.50)
$0.85/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 2 Days
5GB/day
+ ∞ at 512kbps
2
Days
$6.96
(€6.00)
$0.70/GB
Firsty First Class (Japan) - 3 Days
5GB/day
+ ∞ at 512kbps
3
Days
$7.66
(€6.60)
$0.51/GB
Firsty Comfort+ (Japan) - 6 Days
1.5GB/day
+ ∞ at 512kbps
6
Days
$7.66
(€6.60)
$0.85/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 7 Days
1.5GB/day
+ ∞ at 512kbps
7
Days
$8.93
(€7.70)
$0.85/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 8 Days
1.5GB/day
+ ∞ at 512kbps
8
Days
$9.74
(€8.40)
$0.81/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 4 Days
5GB/day
+ ∞ at 512kbps
4
Days
$10.21
(€8.80)
$0.51/GB
Firsty Comfort+ (Japan) - 9 Days
1.5GB/day
+ ∞ at 512kbps
9
Days
$10.96
(€9.45)
$0.81/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 10 Days
1.5GB/day
+ ∞ at 512kbps
10
Days
$12.18
(€10.50)
$0.81/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 5 Days
5GB/day
+ ∞ at 512kbps
5
Days
$12.76
(€11.00)
$0.51/GB
Firsty Comfort+ (Japan) - 11 Days
1.5GB/day
+ ∞ at 512kbps
11
Days
$13.40
(€11.55)
$0.81/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 12 Days
1.5GB/day
+ ∞ at 512kbps
12
Days
$14.62
(€12.60)
$0.81/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 6 Days
5GB/day
+ ∞ at 512kbps
6
Days
$15.31
(€13.20)
$0.51/GB
Firsty Comfort+ (Japan) - 13 Days
1.5GB/day
+ ∞ at 512kbps
13
Days
$15.83
(€13.65)
$0.81/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 14 Days
1.5GB/day
+ ∞ at 512kbps
14
Days
$17.05
(€14.70)
$0.81/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 7 Days
5GB/day
+ ∞ at 512kbps
7
Days
$17.86
(€15.40)
$0.51/GB
Firsty Comfort+ (Japan) - 15 Days
1.5GB/day
+ ∞ at 512kbps
15
Days
$18.27
(€15.75)
$0.81/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 16 Days
1.5GB/day
+ ∞ at 512kbps
16
Days
$18.56
(€16.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 8 Days
5GB/day
+ ∞ at 512kbps
8
Days
$19.49
(€16.80)
$0.49/GB
Firsty Comfort+ (Japan) - 17 Days
1.5GB/day
+ ∞ at 512kbps
17
Days
$19.72
(€17.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 18 Days
1.5GB/day
+ ∞ at 512kbps
18
Days
$20.88
(€18.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 9 Days
5GB/day
+ ∞ at 512kbps
9
Days
$21.92
(€18.90)
$0.49/GB
Firsty Comfort+ (Japan) - 19 Days
1.5GB/day
+ ∞ at 512kbps
19
Days
$22.04
(€19.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 20 Days
1.5GB/day
+ ∞ at 512kbps
20
Days
$23.20
(€20.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 10 Days
5GB/day
+ ∞ at 512kbps
10
Days
$24.36
(€21.00)
$0.49/GB
Firsty Comfort+ (Japan) - 21 Days
1.5GB/day
+ ∞ at 512kbps
21
Days
$24.36
(€21.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 22 Days
1.5GB/day
+ ∞ at 512kbps
22
Days
$25.52
(€22.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 23 Days
1.5GB/day
+ ∞ at 512kbps
23
Days
$26.68
(€23.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 11 Days
5GB/day
+ ∞ at 512kbps
11
Days
$26.80
(€23.10)
$0.49/GB
Firsty Comfort+ (Japan) - 24 Days
1.5GB/day
+ ∞ at 512kbps
24
Days
$27.84
(€24.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 25 Days
1.5GB/day
+ ∞ at 512kbps
25
Days
$29.00
(€25.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 12 Days
5GB/day
+ ∞ at 512kbps
12
Days
$29.23
(€25.20)
$0.49/GB
Firsty Comfort+ (Japan) - 26 Days
1.5GB/day
+ ∞ at 512kbps
26
Days
$30.16
(€26.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 27 Days
1.5GB/day
+ ∞ at 512kbps
27
Days
$31.32
(€27.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 13 Days
5GB/day
+ ∞ at 512kbps
13
Days
$31.67
(€27.30)
$0.49/GB
Firsty Comfort+ (Japan) - 28 Days
1.5GB/day
+ ∞ at 512kbps
28
Days
$32.48
(€28.00)
$0.77/GB
Max speed: 5Mbps
Firsty Comfort+ (Japan) - 29 Days
1.5GB/day
+ ∞ at 512kbps
29
Days
$33.64
(€29.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 14 Days
5GB/day
+ ∞ at 512kbps
14
Days
$34.10
(€29.40)
$0.49/GB
Firsty Comfort+ (Japan) - 30 Days
1.5GB/day
+ ∞ at 512kbps
30
Days
$34.80
(€30.00)
$0.77/GB
Max speed: 5Mbps
Firsty First Class (Japan) - 15 Days
5GB/day
+ ∞ at 512kbps
15
Days
$36.54
(€31.50)
$0.49/GB
Firsty First Class (Japan) - 16 Days
5GB/day
+ ∞ at 512kbps
16
Days
$37.12
(€32.00)
$0.46/GB
Firsty First Class (Japan) - 17 Days
5GB/day
+ ∞ at 512kbps
17
Days
$39.44
(€34.00)
$0.46/GB
Firsty First Class (Japan) - 18 Days
5GB/day
+ ∞ at 512kbps
18
Days
$41.76
(€36.00)
$0.46/GB
Firsty First Class (Japan) - 19 Days
5GB/day
+ ∞ at 512kbps
19
Days
$44.08
(€38.00)
$0.46/GB
Firsty First Class (Japan) - 20 Days
5GB/day
+ ∞ at 512kbps
20
Days
$46.40
(€40.00)
$0.46/GB
Firsty First Class (Japan) - 21 Days
5GB/day
+ ∞ at 512kbps
21
Days
$48.72
(€42.00)
$0.46/GB
Firsty First Class (Japan) - 22 Days
5GB/day
+ ∞ at 512kbps
22
Days
$51.04
(€44.00)
$0.46/GB
Firsty First Class (Japan) - 23 Days
5GB/day
+ ∞ at 512kbps
23
Days
$53.36
(€46.00)
$0.46/GB
Firsty First Class (Japan) - 24 Days
5GB/day
+ ∞ at 512kbps
24
Days
$55.68
(€48.00)
$0.46/GB
Firsty First Class (Japan) - 25 Days
5GB/day
+ ∞ at 512kbps
25
Days
$58.00
(€50.00)
$0.46/GB
Firsty First Class (Japan) - 26 Days
5GB/day
+ ∞ at 512kbps
26
Days
$60.32
(€52.00)
$0.46/GB
Firsty First Class (Japan) - 27 Days
5GB/day
+ ∞ at 512kbps
27
Days
$62.64
(€54.00)
$0.46/GB
Firsty First Class (Japan) - 28 Days
5GB/day
+ ∞ at 512kbps
28
Days
$64.96
(€56.00)
$0.46/GB
Firsty First Class (Japan) - 29 Days
5GB/day
+ ∞ at 512kbps
29
Days
$67.28
(€58.00)
$0.46/GB
Firsty First Class (Japan) - 30 Days
5GB/day
+ ∞ at 512kbps
30
Days
$69.60
(€60.00)
$0.46/GB
Frequently Asked Questions
Does Firsty offer unlimited data eSIM for Japan?
Firsty offers an unlimited data eSIM for Japan with the Firsty Free plan. This 1‑day plan is priced at $0.00 USD and includes advertising; the data is unlimited but the speed may be throttled, with a maximum speed of 256kbps. Because the plan is flagged as unlimited, a fair‑usage policy may apply, meaning speeds can be reduced after heavy use. Travelers who wish to avoid potential throttling should contact Firsty directly to confirm whether a fair‑usage policy applies and what normal‑speed data limits are in practice.
Does Firsty offer Japan eSIM with phone number and SMS?
Firsty does not provide Japan eSIM plans with a phone number or SMS capability. Only data‑only options are offered for travel in Japan. Travelers can still use VoIP applications – such as WhatsApp, Telegram, or iMessage – over the data connection for voice calls and messaging.
How many data plans does Firsty offer for Japan?
Firsty offers 16 single‑country plans for Japan, together with one multi‑country plan that includes Japan within its coverage. The plans come in two general types: fixed data cap options, where a set amount of data is available for the full validity period, and daily data cap options, where a lower daily allowance adds up to a larger total over the plan’s duration. Overall, the price range spans from free to about $69.65 USD, while data limits vary from 1.5 GB up to unlimited. Validity periods can be as short as one day or as long as thirty days.
Summarized by Gen AI. Last updated:
Japan Also Covered By
Other Countries Nearby Japan
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