Two solid ways to get connected in Tokyo — here’s an honest breakdown of when each one actually makes more sense.
How Each One Actually Works
eSIM — a digital SIM profile installed directly on your phone, no physical card involved, with the data plan tied to that one device
Pocket WiFi — a small, portable router you carry and charge, creating a WiFi hotspot that multiple devices can connect to at once
Comparing the Two
eSIM | Pocket WiFi | |
|---|---|---|
Setup | Online, before or after arrival | Counter pickup and return |
Devices covered | 1 (your phone) | Multiple at once |
Extra hardware | None | Yes — one more device |
Battery | Uses your phone’s battery | Separate battery to manage |
Return required | No | Yes, at airport or by mail |
When eSIM Wins
You’re traveling solo and want to keep things simple
Your phone already supports eSIM
You’d rather activate before boarding and land already connected
You don’t want another device or charger to keep track of
When Pocket WiFi Wins
You’re traveling with others who want to share one connection
You have multiple devices needing data — a laptop for work, a tablet for the kids, and so on
Your phone is older and doesn’t support eSIM
You want a backup connection kept separate from your phone
What About Cost?
For a single traveler, the two options are often comparably priced. Where pocket WiFi tends to pull ahead is when you’re splitting the cost across a group — one rental covers everyone, rather than each person buying and managing their own SIM separately.
Our Recommendation
Traveling solo or as a couple with modern phones and light packing in mind: eSIM is the easier path. Traveling as a group, family, or on business with several devices that all need to stay connected: pocket WiFi is worth the extra piece of hardware. Both are legitimate choices — this isn’t a case where one is simply outdated or inferior.
→ SIM and eSIM Counters at Narita and Haneda, Compared
More on Tokyo
This guide is part of our broader look at managing money in Tokyo specifically.
