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ByteSIM eSIM Data Plans for Japan
Plan nameDataValidityPrice/GBPrice
Japan 500MB/day for 3 days
500MB/day
3 Days
$1.93/GB
$2.90
Japan 500MB/day for 3 days
500MB/day
3 Days
$2.90
$1.93/GB
Japan 1GB/day for 1 day
1GB
1 Day
$2.90/GB
$2.90
Japan 1GB/day for 1 day
1GB
1 Day
$2.90
$2.90/GB
Japan 1GB/day for 3 days
1GB/day
3 Days
$1.17/GB
$3.50
Japan 1GB/day for 3 days
1GB/day
3 Days
$3.50
$1.17/GB
Japan 500MB/day for 5 days
500MB/day
5 Days
$1.40/GB
$3.50
Japan 500MB/day for 5 days
500MB/day
5 Days
$3.50
$1.40/GB
Japan 2GB/day for 1 day
2GB
1 Day
$1.95/GB
$3.90
Japan 2GB/day for 1 day
2GB
1 Day
$3.90
$1.95/GB
Japan 500MB/day for 7 days
500MB/day
7 Days
$1.29/GB
$4.50
Japan 500MB/day for 7 days
500MB/day
7 Days
$4.50
$1.29/GB
Japan 2GB/day for 3 days
2GB/day
3 Days
$0.82/GB
$4.90
Japan 2GB/day for 3 days
2GB/day
3 Days
$4.90
$0.82/GB
Japan 1GB/day for 5 days
1GB/day
5 Days
$0.98/GB
$4.90
Japan 1GB/day for 5 days
1GB/day
5 Days
$4.90
$0.98/GB
Japan 3GB/day for 1 day
3GB
1 Day
$1.63/GB
$4.90
Japan 3GB/day for 1 day
3GB
1 Day
$4.90
$1.63/GB
Japan 3GB for 3 days
3GB
3 Days
$1.63/GB
$4.90
Japan 3GB for 3 days
3GB
3 Days
$4.90
$1.63/GB
Japan Unlimited Data for 1 day
1GB
+ ∞ at 10.2Mbps
1 Day
$4.90/GB
$4.90
Japan Unlimited Data for 1 day
1GB
+ ∞ at 10.2Mbps
1 Day
$4.90
$4.90/GB
Japan 3GB for 5 days
3GB
5 Days
$1.83/GB
$5.50
Japan 3GB for 5 days
3GB
5 Days
$5.50
$1.83/GB
Japan 1GB/day for 7 days
1GB/day
7 Days
$0.84/GB
$5.90
Japan 1GB/day for 7 days
1GB/day
7 Days
$5.90
$0.84/GB
Japan 5GB for 3 days
5GB
3 Days
$1.18/GB
$5.90
Japan 5GB for 3 days
5GB
3 Days
$5.90
$1.18/GB
Japan 500MB/day for 10 days
500MB/day
10 Days
$1.18/GB
$5.90
Japan 500MB/day for 10 days
500MB/day
10 Days
$5.90
$1.18/GB
Japan 3GB for 7 days
3GB
7 Days
$1.97/GB
$5.90
Japan 3GB for 7 days
3GB
7 Days
$5.90
$1.97/GB
Japan 3GB for 10 days
3GB
10 Days
$2.07/GB
$6.20
Japan 3GB for 10 days
3GB
10 Days
$6.20
$2.07/GB
Japan 3GB for 15 days
3GB
15 Days
$2.17/GB
$6.50
Japan 3GB for 15 days
3GB
15 Days
$6.50
$2.17/GB
Japan 3GB/day for 3 days
3GB/day
3 Days
$0.77/GB
$6.90
Japan 3GB/day for 3 days
3GB/day
3 Days
$6.90
$0.77/GB
Japan 5GB for 5 days
5GB
5 Days
$1.38/GB
$6.90
Japan 5GB for 5 days
5GB
5 Days
$6.90
$1.38/GB
Japan 3GB for 30 days
3GB
30 Days
$2.30/GB
$6.90
Japan 3GB for 30 days
3GB
30 Days
$6.90
$2.30/GB
Japan 5GB for 7 days
5GB
7 Days
$1.50/GB
$7.50
Japan 5GB for 7 days
5GB
7 Days
$7.50
$1.50/GB
Japan 2GB/day for 5 days
2GB/day
5 Days
$0.79/GB
$7.90
Japan 2GB/day for 5 days
2GB/day
5 Days
$7.90
$0.79/GB
Japan 500MB/day for 15 days
500MB/day
15 Days
$1.05/GB
$7.90
Japan 500MB/day for 15 days
500MB/day
15 Days
$7.90
$1.05/GB
Japan 5GB for 10 days
5GB
10 Days
$1.58/GB
$7.90
Japan 5GB for 10 days
5GB
10 Days
$7.90
$1.58/GB
Japan 5GB for 15 days
5GB
15 Days
$1.64/GB
$8.20
Japan 5GB for 15 days
5GB
15 Days
$8.20
$1.64/GB
Japan 5GB/day for 3 days
5GB/day
3 Days
$0.59/GB
$8.90
Japan 5GB/day for 3 days
5GB/day
3 Days
$8.90
$0.59/GB
Japan 1GB/day for 10 days
1GB/day
10 Days
$0.89/GB
$8.90
Japan 1GB/day for 10 days
1GB/day
10 Days
$8.90
$0.89/GB
Japan 5GB for 30 days
5GB
30 Days
$1.78/GB
$8.90
Japan 5GB for 30 days
5GB
30 Days
$8.90
$1.78/GB
Japan 10GB for 3 days
10GB
3 Days
$0.99/GB
$9.90
Japan 10GB for 3 days
10GB
3 Days
$9.90
$0.99/GB
Japan 500MB/day for 20 days
500MB/day
20 Days
$0.99/GB
$9.90
Japan 500MB/day for 20 days
500MB/day
20 Days
$9.90
$0.99/GB
Japan 10GB/day for 3 days
10GB/day
3 Days
$0.36/GB
$10.90
Japan 10GB/day for 3 days
10GB/day
3 Days
$10.90
$0.36/GB
Japan 3GB/day for 5 days
3GB/day
5 Days
$0.73/GB
$10.90
Japan 3GB/day for 5 days
3GB/day
5 Days
$10.90
$0.73/GB
Japan 2GB/day for 7 days
2GB/day
7 Days
$0.78/GB
$10.90
Japan 2GB/day for 7 days
2GB/day
7 Days
$10.90
$0.78/GB
Japan 10GB for 5 days
10GB
5 Days
$1.09/GB
$10.90
Japan 10GB for 5 days
10GB
5 Days
$10.90
$1.09/GB
Japan Unlimited Data for 3 days
1GB/day
+ ∞ at 10.2Mbps
3 Days
$3.63/GB
$10.90
Japan Unlimited Data for 3 days
1GB/day
+ ∞ at 10.2Mbps
3 Days
$10.90
$3.63/GB
Japan 1GB/day for 15 days
1GB/day
15 Days
$0.79/GB
$11.90
Japan 1GB/day for 15 days
1GB/day
15 Days
$11.90
$0.79/GB
Japan 10GB for 7 days
10GB
7 Days
$1.19/GB
$11.90
Japan 10GB for 7 days
10GB
7 Days
$11.90
$1.19/GB
Japan 10GB for 10 days
10GB
10 Days
$1.29/GB
$12.90
Japan 10GB for 10 days
10GB
10 Days
$12.90
$1.29/GB
Japan 10GB for 15 days
10GB
15 Days
$1.30/GB
$13.00
Japan 10GB for 15 days
10GB
15 Days
$13.00
$1.30/GB
Japan 10GB for 30 days
10GB
30 Days
$1.32/GB
$13.20
Japan 10GB for 30 days
10GB
30 Days
$13.20
$1.32/GB
Japan 5GB/day for 5 days
5GB/day
5 Days
$0.60/GB
$14.90
Japan 5GB/day for 5 days
5GB/day
5 Days
$14.90
$0.60/GB
Japan 3GB/day for 7 days
3GB/day
7 Days
$0.71/GB
$14.90
Japan 3GB/day for 7 days
3GB/day
7 Days
$14.90
$0.71/GB
Japan 2GB/day for 10 days
2GB/day
10 Days
$0.75/GB
$14.90
Japan 2GB/day for 10 days
2GB/day
10 Days
$14.90
$0.75/GB
Japan 500MB/day for 30 days
500MB/day
30 Days
$0.99/GB
$14.90
Japan 500MB/day for 30 days
500MB/day
30 Days
$14.90
$0.99/GB
Japan 1GB/day for 20 days
1GB/day
20 Days
$0.80/GB
$15.90
Japan 1GB/day for 20 days
1GB/day
20 Days
$15.90
$0.80/GB
Japan 10GB/day for 5 days
10GB/day
5 Days
$0.36/GB
$17.90
Japan 10GB/day for 5 days
10GB/day
5 Days
$17.90
$0.36/GB
Japan Unlimited Data for 5 days
1GB/day
+ ∞ at 10.2Mbps
5 Days
$3.58/GB
$17.90
Japan Unlimited Data for 5 days
1GB/day
+ ∞ at 10.2Mbps
5 Days
$17.90
$3.58/GB
Japan - 5G Ultra Unlimited eSIM by KDDI for 7 days
Unlimited
4 Days
$18.90
Possible Throttling
Low latencyJapan - 5G Ultra Unlimited eSIM by KDDI for 7 days
Unlimited
4 Days
$18.90
Possible Throttling Low latencyJapan 5GB/day for 7 days
5GB/day
7 Days
$0.57/GB
$19.90
Japan 5GB/day for 7 days
5GB/day
7 Days
$19.90
$0.57/GB
Japan 20GB for 3 days
20GB
3 Days
$0.99/GB
$19.90
Japan 20GB for 3 days
20GB
3 Days
$19.90
$0.99/GB
Japan 3GB/day for 10 days
3GB/day
10 Days
$0.70/GB
$20.90
Japan 3GB/day for 10 days
3GB/day
10 Days
$20.90
$0.70/GB
Japan 2GB/day for 15 days
2GB/day
15 Days
$0.70/GB
$20.90
Japan 2GB/day for 15 days
2GB/day
15 Days
$20.90
$0.70/GB
Japan 20GB for 5 days
20GB
5 Days
$1.05/GB
$20.90
Japan 20GB for 5 days
20GB
5 Days
$20.90
$1.05/GB
Japan 20GB for 7 days
20GB
7 Days
$1.10/GB
$21.90
Japan 20GB for 7 days
20GB
7 Days
$21.90
$1.10/GB
Japan 20GB for 10 days
20GB
10 Days
$1.16/GB
$23.20
Japan 20GB for 10 days
20GB
10 Days
$23.20
$1.16/GB
Japan 20GB for 15 days
20GB
15 Days
$1.18/GB
$23.50
Japan 20GB for 15 days
20GB
15 Days
$23.50
$1.18/GB
Japan 10GB/day for 7 days
10GB/day
7 Days
$0.34/GB
$23.90
Japan 10GB/day for 7 days
10GB/day
7 Days
$23.90
$0.34/GB
Japan 1GB/day for 30 days
1GB/day
30 Days
$0.80/GB
$23.90
Japan 1GB/day for 30 days
1GB/day
30 Days
$23.90
$0.80/GB
Japan 20GB for 30 days
20GB
30 Days
$1.19/GB
$23.90
Japan 20GB for 30 days
20GB
30 Days
$23.90
$1.19/GB
Japan 30GB for 3 days
30GB
3 Days
$0.86/GB
$25.90
Japan 30GB for 3 days
30GB
3 Days
$25.90
$0.86/GB
Japan Unlimited Data for 7 days
1GB/day
+ ∞ at 10.2Mbps
7 Days
$3.70/GB
$25.90
Japan Unlimited Data for 7 days
1GB/day
+ ∞ at 10.2Mbps
7 Days
$25.90
$3.70/GB
Japan 5GB/day for 10 days
5GB/day
10 Days
$0.56/GB
$27.90
Japan 5GB/day for 10 days
5GB/day
10 Days
$27.90
$0.56/GB
Japan 2GB/day for 20 days
2GB/day
20 Days
$0.70/GB
$27.90
Japan 2GB/day for 20 days
2GB/day
20 Days
$27.90
$0.70/GB
Japan 30GB for 5 days
30GB
5 Days
$0.93/GB
$27.90
Japan 30GB for 5 days
30GB
5 Days
$27.90
$0.93/GB
Japan - 5G Ultra Unlimited eSIM by KDDI for 7 days
Unlimited
7 Days
$29.90
Possible Throttling Low latencyJapan - 5G Ultra Unlimited eSIM by KDDI for 7 days
Unlimited
7 Days
$29.90
Possible Throttling Low latencyJapan 30GB for 7 days
30GB
7 Days
$1.00/GB
$29.90
Japan 30GB for 7 days
30GB
7 Days
$29.90
$1.00/GB
Japan 3GB/day for 15 days
3GB/day
15 Days
$0.69/GB
$30.90
Japan 3GB/day for 15 days
3GB/day
15 Days
$30.90
$0.69/GB
Japan 30GB for 10 days
30GB
10 Days
$1.06/GB
$31.90
Japan 30GB for 10 days
30GB
10 Days
$31.90
$1.06/GB
Japan 10GB/day for 10 days
10GB/day
10 Days
$0.34/GB
$33.90
Japan 10GB/day for 10 days
10GB/day
10 Days
$33.90
$0.34/GB
Japan 30GB for 15 days
30GB
15 Days
$1.13/GB
$33.90
Japan 30GB for 15 days
30GB
15 Days
$33.90
$1.13/GB
Japan Unlimited Data for 10 days
1GB/day
+ ∞ at 10.2Mbps
10 Days
$3.49/GB
$34.90
Japan Unlimited Data for 10 days
1GB/day
+ ∞ at 10.2Mbps
10 Days
$34.90
$3.49/GB
Japan 30GB for 30 days
30GB
30 Days
$1.20/GB
$35.90
Japan 30GB for 30 days
30GB
30 Days
$35.90
$1.20/GB
Japan - 5G Ultra Unlimited eSIM by KDDI for 10 days
Unlimited
10 Days
$39.90
Possible Throttling Low latencyJapan - 5G Ultra Unlimited eSIM by KDDI for 10 days
Unlimited
10 Days
$39.90
Possible Throttling Low latencyJapan 3GB/day for 20 days
3GB/day
20 Days
$0.68/GB
$40.90
Japan 3GB/day for 20 days
3GB/day
20 Days
$40.90
$0.68/GB
Japan 5GB/day for 15 days
5GB/day
15 Days
$0.56/GB
$41.90
Japan 5GB/day for 15 days
5GB/day
15 Days
$41.90
$0.56/GB
Japan 2GB/day for 30 days
2GB/day
30 Days
$0.70/GB
$41.90
Japan 2GB/day for 30 days
2GB/day
30 Days
$41.90
$0.70/GB
Japan 50GB for 3 days
50GB
3 Days
$0.98/GB
$48.90
Japan 50GB for 3 days
50GB
3 Days
$48.90
$0.98/GB
Japan Unlimited Data for 15 days
1GB/day
+ ∞ at 10.2Mbps
15 Days
$3.33/GB
$49.90
Japan Unlimited Data for 15 days
1GB/day
+ ∞ at 10.2Mbps
15 Days
$49.90
$3.33/GB
Japan 10GB/day for 15 days
10GB/day
15 Days
$0.34/GB
$50.90
Japan 10GB/day for 15 days
10GB/day
15 Days
$50.90
$0.34/GB
Japan 50GB for 5 days
50GB
5 Days
$1.04/GB
$51.90
Japan 50GB for 5 days
50GB
5 Days
$51.90
$1.04/GB
Japan 50GB for 7 days
50GB
7 Days
$1.08/GB
$53.90
Japan 50GB for 7 days
50GB
7 Days
$53.90
$1.08/GB
Japan - 5G Ultra Unlimited eSIM by KDDI for 15 days
Unlimited
15 Days
$55.90
Possible Throttling Low latencyJapan - 5G Ultra Unlimited eSIM by KDDI for 15 days
Unlimited
15 Days
$55.90
Possible Throttling Low latencyJapan 5GB/day for 20 days
5GB/day
20 Days
$0.56/GB
$55.90
Japan 5GB/day for 20 days
5GB/day
20 Days
$55.90
$0.56/GB
Japan 50GB for 10 days
50GB
10 Days
$1.12/GB
$55.90
Japan 50GB for 10 days
50GB
10 Days
$55.90
$1.12/GB
Japan 50GB for 15 days
50GB
15 Days
$1.18/GB
$58.90
Japan 50GB for 15 days
50GB
15 Days
$58.90
$1.18/GB
Japan 50GB for 30 days
50GB
30 Days
$1.20/GB
$59.90
Japan 50GB for 30 days
50GB
30 Days
$59.90
$1.20/GB
Japan 3GB/day for 30 days
3GB/day
30 Days
$0.68/GB
$60.90
Japan 3GB/day for 30 days
3GB/day
30 Days
$60.90
$0.68/GB
Japan Unlimited Data for 20 days
1GB/day
+ ∞ at 10.2Mbps
20 Days
$3.09/GB
$61.90
Japan Unlimited Data for 20 days
1GB/day
+ ∞ at 10.2Mbps
20 Days
$61.90
$3.09/GB
Japan 10GB/day for 20 days
10GB/day
20 Days
$0.33/GB
$66.90
Japan 10GB/day for 20 days
10GB/day
20 Days
$66.90
$0.33/GB
Japan 5GB/day for 30 days
5GB/day
30 Days
$0.50/GB
$74.90
Japan 5GB/day for 30 days
5GB/day
30 Days
$74.90
$0.50/GB
Japan Unlimited Data for 30 days
1GB/day
+ ∞ at 10.2Mbps
30 Days
$2.50/GB
$74.90
Japan Unlimited Data for 30 days
1GB/day
+ ∞ at 10.2Mbps
30 Days
$74.90
$2.50/GB
Japan - 5G Ultra Unlimited eSIM by KDDI for 31 day
Unlimited
31 Days
$79.90
Possible Throttling Low latencyJapan - 5G Ultra Unlimited eSIM by KDDI for 31 day
Unlimited
31 Days
$79.90
Possible Throttling Low latencyJapan 10GB/day for 30 days
10GB/day
30 Days
$0.30/GB
$89.90
Japan 10GB/day for 30 days
10GB/day
30 Days
$89.90
$0.30/GB
Data plans for this provider are automatically updated. While we strive to keep the information accurate, we cannot guarantee its completeness or accuracy. Please confirm all details on the provider's official website or app before purchasing.
ByteSIM for Japan FAQ
Does ByteSIM offer unlimited data eSIM for Japan?
Yes, ByteSIM sells unlimited‑data eSIM plans for Japan. The available options are the “Japan – 5G Ultra Unlimited eSIM by KDDI” series, which come in several validity periods ranging from 4 days to 31 days. Prices start at $18.90 USD for the 4‑day plan and go up to $79.90 USD for the 31‑day plan.
These plans are advertised as unlimited, but the provider applies a Fair Usage Policy: speeds may be throttled after heavy usage, usually limiting the data rate to about 10 240 kbps. Users concerned about potential speed restrictions should contact ByteSIM directly to confirm whether a throttle applies and to determine how much data remains available at normal speed.
Does ByteSIM offer Japan eSIM with phone number and SMS?
ByteSIM does not offer Japan eSIMs that include a phone number or SMS capability. Their Japan plans are strictly data‑only; calls and texts would need to be handled through internet‑based messaging or VoIP services such as WhatsApp, Telegram, or iMessage.
How many data plans does ByteSIM offer for Japan?
ByteSIM currently offers 94 single coverage data plans specifically for Japan. These plans range in price from approximately $2.90 to $89.90 and offer data allowances from 500MB up to unlimited data. Of these, 49 plans feature a daily data cap, while the remaining 45 provide a fixed data amount. ByteSIM does not currently list any multi-country plans that include coverage in Japan.
Summarized by AI, Last updated:
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