Whether you just arrived and need internet immediately, or you’re waiting for fiber installation, here’s how to stay connected in Japan.
Your Options at a Glance
| Option | Speed | Cost | Setup Time |
|---|---|---|---|
| Pocket WiFi (rental) | Medium | ¥3,000–¥5,000/month | Immediate |
| Data SIM card | Medium | ¥1,500–¥4,000/month | Same day |
| Home WiFi router (SIM) | Medium | ¥3,000–¥5,000/month | Same day |
| Fiber internet | Fast | ¥4,000–¥6,000/month | 2–4 weeks |
Pocket WiFi
A portable WiFi router that connects multiple devices (phone, laptop, tablet) to mobile internet via a SIM card inside. Carry it in your bag and you have WiFi anywhere in Japan.
Best For
- New arrivals waiting for fiber installation
- People who travel frequently within Japan
- Those in apartments where fiber isn’t available
Providers
| Provider | Notes |
|---|---|
| GL.iNet / Mugen WiFi | Popular for long-term residents |
| SoftBank Pocket WiFi | Wide coverage, available at airports |
| au Pocket WiFi | Good rural coverage |
| WiMAX (UQ / Broad WiMAX) | Good value for home + portable use |
Rental vs Purchase
Rental: No upfront cost, return when you leave Japan. Good for short-term stays. Daily rates around ¥300–¥700/day (cheaper monthly).
Purchase/Contract: Better value for 6+ months. 2-year contracts common. Monthly fees ¥3,000–¥5,000.
WiMAX — Best Value Home + Portable Internet
WiMAX is a 4G/5G mobile internet service that provides both home router and portable WiFi. Very popular with foreigners because:
- No fiber installation required
- No landlord permission needed
- Can take it with you (portable)
- No cable or technician visit
Providers: UQ WiMAX, Broad WiMAX, GMO Tokaidō WiMAX
Cost: Around ¥3,500–¥4,500/month Speed: 50–300 Mbps typical (varies by area) Coverage: Good in cities, weaker in rural areas
WiMAX uses Softbank/au’s tower network. Check coverage at your address before signing up.
Data SIM Cards
If you already have a SIM phone and just need data, a data-only SIM is cheaper than a full plan.
Popular options:
| SIM | Data | Price |
|---|---|---|
| IIJmio eSIM | 15GB | ~¥1,500/month |
| OCN Mobile One | 3GB | ~¥990/month |
| povo2.0 | Pay-as-you-go | From ¥0/month + topups |
povo2.0 (by au) is a standout for flexibility — free base plan, buy data topups as needed. Great as a backup SIM.
See our SIM card guide for full comparison.
Fiber Internet (光回線) — Best for Home
If you’re settling long-term and your apartment supports it, fiber is the best option:
- Speed: 500 Mbps–10 Gbps
- Reliability: Much more consistent than mobile
- Cost: ¥4,000–¥6,000/month
- Setup time: 2–4 weeks for technician installation
Popular providers: NTT Flet’s Hikari, SoftBank Hikari, NURO Hikari, So-net Hikari
See our utilities guide for the full fiber setup process.
Free WiFi in Japan
Free WiFi spots are available but limited in speed and reliability:
| Location | WiFi Name |
|---|---|
| 7-Eleven | 7SPOT |
| FamilyMart / Lawson | Lawson_Free_Wi-Fi |
| McDonald’s | Mac_Wi-Fi |
| Starbucks | at_STARBUCKS_Wi2 |
| JR stations (major) | JR-EAST FREE Wi-Fi |
| Tourist areas | Japan Connected-free Wi-Fi |
Download the Japan Connected-free Wi-Fi app — aggregates free WiFi spots across Japan. Available in English.
Free WiFi is fine for light browsing but not reliable for video calls or large downloads. Get a SIM or pocket WiFi for serious use.
At the Airport (Arrival)
When you land at Narita or Haneda:
- Pocket WiFi rental counters are at the arrivals hall — no reservation needed
- SIM card vending machines are at the airport
- Free temporary WiFi available in terminals
If you pre-ordered a SIM or pocket WiFi online, pick up at the airport counter — faster than trying to set things up in Japan.
Bottom Line
Just arrived? Get a pocket WiFi at the airport or order a SIM card before you land. Long-term? WiMAX is the easiest home internet — no installation, no landlord permission. Fiber is faster once you’re settled. For data-only on a budget, IIJmio or povo2.0 are excellent choices.