eSIM-Now Japan eSIM
5 plans on Docomo, au and SoftBank. 5 GB for a week from US$7.52. Prices checked .
Is eSIM-Now good for Japan?
eSIM-Now runs on Docomo, au and SoftBank, 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$7.52, the 17th cheapest of the 60 providers with a week plan. Hotspot allowed on some plans. 1 unlimited plan, with no daily cap. How we rank eSIM-Now.
Japan plans
| Data | Price | Compare | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1 GB 7 days 1 GB at full speed, then data stops | $3.20 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2 GB 15 days 2 GB at full speed, then data stops | $4.40 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3 GB 15 days 3 GB at full speed, then data stops | $5.60 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
5 GB 30 days 5 GB at full speed, then data stops | $7.52 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Unlimited | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Unlimited 3 days No daily cap | $10.93 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
eSIM-Now speed and data rules
| Data at full speed | When it runs out | Plans |
|---|---|---|
| 1 to 5 GB | Data stops | 4 plans |
| Unlimited | No daily cap | 1 plan |
eSIM-Now: “Data runs out and you top up or buy again” Source
eSIM-Now ratings from customer reviews
8 reviews on Trustpilot, written 21 May 2025 to 9 Nov 2026. 0 of them are about a trip to Japan. Each rating needs at least 10 reviews that mention it.
| Aspect | Rating | Reviews that mention it |
|---|---|---|
| Speed | Not enough reviews | 0 reviews |
| Coverage | Not enough reviews | 5 reviews |
| Setup | Not enough reviews | 2 reviews |
| Support | Not enough reviews | 6 reviews |
| Value | Not enough reviews | 1 review |
| App | Not enough reviews | 0 reviews |
| Data problems | Not enough reviews | |
| Refund problems | Not enough reviews |
eSIM-Now speed tests in Japan
No published speed tests of eSIM-Now 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%
SoftBank- Download
- 73.78 Mbps
- 5G download
- 153.55 Mbps
- Time on 5G
- 41.4%
- Latency
- 45 ms
| 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 |
| SoftBank | 73.78 Mbps | 153.55 Mbps | 41.4% | 45 ms |
Sources: Ookla Speedtest Connectivity Report H1 2026 via TelecomLead, 17 Sept 2026; Ookla Speedtest Intelligence Q3 2025 via TelecomsTechNews, 15 Dec 2025.
