Tokyo is one of the most extraordinary cities in the world to live and work in. Internet infrastructure is one area where Japan genuinely delivers: the country has some of the fastest fixed broadband speeds globally, and Tokyo’s mobile coverage is comprehensive, reliable, and increasingly 5G.

That said, Japan’s connectivity market has some quirks that catch new arrivals off guard — particularly around SIM card registration requirements and the pace of fixed broadband installation. This guide covers everything you need, in the order you’ll need it.

Tokyo’s Internet Landscape: World-Leading But With Quirks

Japan consistently ranks in the global top five for fixed broadband speeds. NTT’s fibre infrastructure delivers gigabit speeds to most Tokyo addresses. Mobile coverage from Docomo, SoftBank, and au is comprehensive throughout the metropolitan area.

The quirk: Japan has historically required more documentation to set up phone and internet services than most countries. A Residence Card (zairyu card) is typically needed for post-paid phone contracts and fixed broadband. For new arrivals without local documentation, this creates a gap that ConnectPls solves cleanly.

Option 1: eSIM — Essential for Arrival and Early Weeks

A ConnectPls eSIM activated before your flight to Tokyo means you land at Narita or Haneda already connected. Navigating Tokyo on your first day requires data you control — not airport WiFi. ConnectPls eSIM plans for Japan provide strong 4G/5G coverage throughout Tokyo with no Japanese documentation required.

Option 2: SIM Card — Once You Have Your Residence Card

Once you have your Residence Card (issued at the municipal office after registering your address), a Japanese SIM card gives you a local number and often better long-term data value. IIJmio, Rakuten Mobile, and Mineo are popular MVNO options offering data-only or voice+data plans at reasonable prices.

ConnectPls SIM cards for Japan are available without requiring Japanese documentation upfront — bridging the gap between arrival and full local registration, which can take several weeks for new residents.

Option 3: Portable WiFi — For the Transition Period

Tokyo’s fixed broadband installation typically takes 2-4 weeks after you have a confirmed address and residence registration. During this period, a ConnectPls portable WiFi subscription is the most practical solution for full remote work capability — connecting laptop, tablet, and phone simultaneously from one monthly plan.

Fixed Broadband in Tokyo

Tokyo’s fixed broadband is excellent. NTT’s Flets Hikari service delivers 1Gbps fibre to most apartments for approximately 27-40 USD per month. You’ll need your Residence Card and a Japanese bank account to set up fixed broadband. The full setup timeline from arrival to working home broadband is realistically 4-6 weeks for most new residents.