Living in Japan—whether you’re a student, freelancer, or expat—means being online is non-negotiable. International students need it for research and Zoom calls; freelancers rely on stable flows to deliver work; expats use it to stay in touch with home.
Some residents don’t have a permanent address or fiber contract, like those in shared housing or Airbnb / guesthouses.
If you move frequently—between cities, dorms, or apartments—you need a flexible internet that works on the go. Here’s where Pocket WiFi and SIM cards shine differently.
What is a SIM card with mobile internet?
Types of tariffs in Japan
You can get data-only, voice+data, or voice-lite SIMs—often bundled with generous 4G/5G data. Activation may require a local bank account or ARC card.
Minimum connection times
Typically 3 months minimum, although tourist SIMs can start from just a few weeks.
Pros
- Compact and discreet—literally a chip in your phone.
- No need for extra device (router).
Cons
- Speed can be throttled if provider limits performance.
- Hard to buy as a resident without a local account or visa.
- Only works on one device (smartphone), unless you tether.
What is Pocket WiFi and how to use it at home or on the go
Pocket WiFi is a portable router that creates a personal WiFi hotspot. Just turn it on, connect devices by SSID and password—no phone tinkering needed.
Providers like Mobal make it easy: order online, free delivery in Japan, rental from one day up to many months.
Connect multiple devices — laptop, smartphone, tablet (Mobal supports up to 10 devices)
No long-term contracts required—daily, monthly, or 3-month rental options available.
Comparison: Which is better for long-term use?
| Parameter | SIM‑card | Pocket WiFi |
| Contract | Often requires 3+ months, local ID | Flexible—none or short term |
| Convenience | Works in phone only | Works across any device |
| Speed | Depends on mobile operator | More stable, up to 150 Mbps download/50 Mbps upload |
| Minimum term | Usually from 3 months | From 1 day |
| Cost | Mid-range | Varies by package |
Pocket WiFi for home is more cost-effective and stable for multi-device users. SIM may win for solo smartphone users.
Pocket WiFi
- Extend lease without paperwork: You can renew online monthly with Mobal, no hassle.
- Use as home internet: Ideal for home broadband, with 100 GB–300 GB plans and consistent speed; used this way by residents in shared housing.
- Take it on trips: Whether it’s a road trip or business travel, your pocket hotspot travels with you.
- Device ownership: After 3 months, the unit is yours—no return needed
Mobal Pocket WiFi – real specs and benefits
From the Mobal site, the Pocket WiFi delivers up to 300 GB data/month, 150 Mbps download, 50 Mbps upload, connects up to 10 devices, and supports 12‑hour battery life.
The new router is compact (130 g, USB‑C rechargeable) and does not stop working after data usage—just throttles speed to 384 kbps.
- Device cost: ¥6,980
- Monthly plans:
- 100 GB: ¥4,980
200 GB: ¥5,980 - 300 GB: ¥6,980; 10% discount if you already have a Mobal SIM or eSIM
- 100 GB: ¥4,980
Why choose Mobal?
- Uses all major networks (SoftBank, DoCoMo, AU, Rakuten)
- Free delivery within Japan
No hidden taxes or fees, English‑speaking support - 3‑month contract minimum; device yours after term
- Money‑back guarantee available
Special offer
Mobal provides a 10% discount on monthly Pocket WiFi Japan fees for users who already have an active voice + data SIM card Japan or eSIM plan through the same provider. This special offer is designed to make it even more affordable for long-term residents, expats, and digital nomads who rely on consistent, high-speed internet in Japan both at home and on the go. By combining services under one provider, users not only enjoy the convenience of unified support and billing, but also benefit from noticeable monthly savings. Whether you’re streaming, working remotely, or staying in touch with family abroad, Mobal’s bundle-friendly pricing ensures you get reliable internet for foreigners at a lower cost — with no compromise on quality or performance.
Conclusion
Pocket WiFi isn’t just for tourists—it’s an incredibly flexible, multi-device internet solution for everyday life in Japan.
Compared to a SIM, it’s more convenient for families, shared households, and those avoiding local bureaucracy.
With free delivery, no hidden fees, and English support, Mobal Pocket WiFi combines speed, reliability, and peace of mind—on the go and at home.
