Internet for Business Travellers in Japan
eSIM from 1,00 USD · 100 MB. Networks: KDDI/au (5G), NTT docomo (4G), NTT docomo (5G), Rakuten Mobile (5G), SoftBank (5G).
Business travel internet in Japan
What needs to work
- Video calls (Zoom / Teams / Meet): use ~800 MB–1.5 GB/hr. You need at least 5 Mbps stable. Urban 4G in Japan usually delivers that.
- Corporate VPN: works well on eSIM. Most data networks don't block standard VPN protocols. If your VPN uses a fixed IP (e.g. WireGuard), configure it before you travel.
- Email + cloud platforms: low consumption (~50–100 MB/hr of active use). No issues on 4G.
- Hotspot / tethering: if you need to connect a laptop, check your eSIM plan allows tethering (most do, but some restrict it).
Backup plan for critical meetings
Don't rely solely on mobile data for an important presentation. Find a coworking space or café with fast Wi-Fi as a backup. For long calls, use Wi-Fi with the eSIM as fallback.
How much data for a working week?
With 2–3 video calls per day + email + browsing: ~3–5 GB/day. For a full working week: minimum 15–20 GB. With tethering: 25+ GB or unlimited.