Technology, Mobile & Internet
- Technology, Mobile & Internet
No Wi-Fi Yet in Japan? How to Get Temporary Internet
For a wait of only a few days, start with phone tethering or a data eSIM. If installation may take weeks and you need a laptop or several devices, compare a high-data SIM, Pocket Wi-Fi, and Home Wi-Fi before signing up.
- Technology, Mobile & Internet
What’s the Difference Between Voice SIMs, Data SIMs, and eSIMs?
Voice SIM and data SIM describe what the service includes; physical SIM and eSIM describe where your subscriber details live on the device. The two choices are independent, so an eSIM can be a voice line and a physical SIM can be data-only. This guide compares all four, covers what to check before you switch phones, and explains dual SIM for keeping your home-country number alongside a Japanese one.
- Technology, Mobile & Internet
Should You Choose a 5GB, 30GB, 50GB, or 100GB SIM in Japan?
Do not pick a plan by instinct. Open your phone's data usage screen, take the heaviest of your last three months, then add what changes in Japan: maps, translation, video calls home, and tethering a laptop. That number tells you whether you sit in the 5GB, 30GB, 50GB, or 100GB group, long before you start comparing carriers.
- Technology, Mobile & Internet
How to Switch Mobile Carriers in Japan and Keep Your Number with MNP
MNP lets you switch mobile carriers in Japan while keeping your current phone number. Do not cancel your old line first; check one-stop eligibility, MNP reservation details, device compatibility, documents, and activation timing.
- Technology, Mobile & Internet
Do New Arrivals in Japan Need a Japanese Phone Number?
A Japanese phone number is not required the moment you land, but it makes housing applications, work, deliveries and service verification far easier. Here is when to get one and which SIM to choose.
- Technology, Mobile & Internet
Slow or disconnected internet in Japan: what to check before contacting support
When internet in Japan becomes slow or disconnects, first identify whether the problem is the device, Wi-Fi, line, or carrier. A structured check helps you avoid deleting an eSIM, resetting equipment, or changing plans unnecessarily.
- Technology, Mobile & Internet
Pocket Wi-Fi, Home Wi-Fi, or Fiber Internet in Japan: What’s the Difference?
The three options differ in how the connection actually reaches your devices: Pocket Wi-Fi and Home Wi-Fi run over a mobile network, while fiber uses a fixed line installed to the building. That makes the right answer depend on whether you need to carry your connection, get online at home quickly, or keep many devices stable. This guide compares them by portability, installation work, device load, and how long you plan to stay in Japan.
- Technology, Mobile & Internet
Which Internet option is best for 3, 6, 12, or 24 months in Japan?
Your time in Japan narrows the internet choices but does not decide everything. Compare SIMs, eSIMs, Pocket Wi-Fi, Home Wi-Fi, and fiber by usage and true total cost.
- Technology, Mobile & Internet
How Long Does Fiber Internet Installation Take in Japan?
There is no single installation time for every address in Japan. The schedule depends on service availability, existing wiring, landlord permission, construction requirements, and technician availability.
- Technology, Mobile & Internet
Canceling a SIM or Wi-Fi in Japan: avoid extra charges
A checklist for canceling a SIM, Pocket Wi-Fi, Home Wi-Fi, or fiber service in Japan, including MNP, final bills, installments, and rental returns.