Breeze Japan eSIM
15 plans on au and Docomo. 5 GB for a week from US$9.99. Prices checked .
Is Breeze good for Japan?
Breeze runs on au and Docomo, strong in all 10 areas on our coverage map, with good 4G at all 28 rural and mountain places. A week with 5 GB costs US$9.99, the 26th cheapest of the 60 providers with a week plan. 5G on every plan. Hotspot allowed. Review rating 3.5 out of 5 from 99 customer reviews. How we rank Breeze.
Japan plans
| Data | Price | Compare |
|---|---|---|
1 GB 1 day | $5.99 | |
1 GB 3 days 1 GB a day at full speed, then slower until the allowance refills, every 24 hours | $10.99 | |
1 GB 5 days 1 GB a day at full speed, then slower until the allowance refills, every 24 hours | $17.49 | |
1 GB 7 days | $3.99 | |
1 GB 7 days 1 GB a day at full speed, then slower until the allowance refills, every 24 hours | $23.99 | |
1 GB 10 days 1 GB a day at full speed, then slower until the allowance refills, every 24 hours | $32.99 | |
1 GB 15 days 1 GB a day at full speed, then slower until the allowance refills, every 24 hours | $47.99 | |
2 GB 15 days | $5.49 | |
3 GB 30 days | $6.99 | |
5 GB 30 days | $9.99 | |
10 GB 30 days | $14.99 | |
20 GB 30 days | $26.99 | |
50 GB 45 days | $66.99 | |
100 GB 70 days | $133.50 | |
200 GB 90 days | $251.50 |
Breeze speed and data rules
| Data at full speed | When it runs out | Plans |
|---|---|---|
| 1 GB a day | Slows down until the allowance refills, every 24 hours, speed not stated | 5 plans |
| 1 to 200 GB | Breeze doesn't say | 10 plans |
Breeze ratings from customer reviews
99 reviews on Trustpilot, written 8 Feb 2024 to 7 Nov 2026. 9 of them are about a trip to Japan. Each rating needs at least 10 reviews that mention it.
Review rating3.5 out of 5The mean of the ratings below
| Aspect | Rating | Reviews that mention it |
|---|---|---|
| Speed | Not enough reviews | 7 reviews |
| Coverage | 3.6 out of 5 | 55 reviews |
| Setup | 4.0 out of 5 | 43 reviews |
| Support | 2.4 out of 5 | 18 reviews |
| Value | 3.9 out of 5 | 30 reviews |
| App | Not enough reviews | 5 reviews |
| Data problems | 7.1% of reviews | 7 of 99 reviews report one |
| Refund problems | 3.0% of reviews | 3 of 99 reviews report one |
Breeze speed tests in Japan
No published speed tests of Breeze in Japan.
How fast these networks are for their own customers
Ookla's median speeds for people on each network's own plans, H1 2026 unless marked.
NTT Docomo- Download
- 50.5 MbpsQ3 2025
- Time on 5G
- 51.4%
KDDI (au)- Download
- 67.85 Mbps
- Time on 5G
- 48.8%
| Network | Download | 5G download | Time on 5G | Latency |
|---|---|---|---|---|
| NTT Docomo | 50.5 MbpsQ3 2025 | Not published | 51.4% | Not published |
| KDDI (au) | 67.85 Mbps | Not published | 48.8% | Not published |
Sources: Ookla Speedtest Connectivity Report H1 2026 via TelecomLead, 17 Sept 2026; Ookla Speedtest Intelligence Q3 2025 via TelecomsTechNews, 15 Dec 2025.
