b-mobile Visitor SIM Japan eSIM
2 plans on Docomo. 5 GB for a week from US$12.40. Prices checked .
Is b-mobile Visitor SIM good for Japan?
b-mobile Visitor SIM runs on 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$12.40, the 40th cheapest of the 60 providers with a week plan. 4G only. Hotspot allowed. How we rank b-mobile Visitor SIM.
Japan plans
Shown in USD, converted from JPY at ECB rates of
| Data | Price | Compare |
|---|---|---|
5 GB 10 days | $12.40 | |
7 GB 21 days | $18.60 |
b-mobile Visitor SIM speed and data rules
b-mobile Visitor SIM doesn't say what happens when a plan's full-speed data runs out.
b-mobile Visitor SIM: “The service will stop.” Source
b-mobile Visitor SIM reviews and speed tests
No customer reviews or published speed tests of b-mobile Visitor SIM in Japan yet.
How fast this network is 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%
| Network | Download | 5G download | Time on 5G | Latency |
|---|---|---|---|---|
| NTT Docomo | 50.5 MbpsQ3 2025 | Not published | 51.4% | Not published |
Sources: Ookla Speedtest Connectivity Report H1 2026 via TelecomLead, 17 Sept 2026; Ookla Speedtest Intelligence Q3 2025 via TelecomsTechNews, 15 Dec 2025.
