How to choose Japan internet the easy way

Most “Pocket WiFi Japan” articles make this feel complicated. It isn’t.

Your best option usually comes down to two things:

  • How many devices need internet (one phone vs sharing)

  • Whether your phone can use eSIM (and if you’re okay with data-only)

That’s exactly what the quiz checks — and it’s why the recommendation above tends to match what frequent Japan travelers choose.

Pocket WiFi vs eSIM vs SIM (quick comparison)

Choose eSIM if:

  • it’s just one phone:
  • you want instant activation
  • you don’t want to carry/charge an extra device
  • you mainly need data for maps, messaging, browsing

Good to know: If you selected “I need calls/SMS”, you can often keep your normal number active (depending on your setup) and use the eSIM for data.

Choose Pocket WiFi if:

  • you’re traveling as a couple / family / group
  • you need internet on a laptop, tablet, camera, Switch, etc.
  • you want one connection that everyone can share
  • you’ll be using a lot of data (uploads, streaming, constant navigation)

Good to know: Pocket WiFi is still the “classic” Japan solution because it just works — the only downside is remembering to charge it.

Choose a physical SIM if:

  • your phone doesn’t support eSIM
  • you’re not sure about eSIM and want the safest option
  • you prefer a traditional setup (insert SIM, turn on data, done)

Good to know: If your phone is carrier locked, your options can be limited — Pocket WiFi is often the easiest fallback

The 5 most common mistakes tourists make (avoid these)

  1. Buying an eSIM without checking compatibility
  2. Arriving with a carrier-locked phone (then nothing activates)
  3. Getting Pocket WiFi for a solo trip when eSIM would’ve been simpler
  4. Assuming hotel WiFi is enough (it isn’t on travel days)
  5. Underestimating how many devices you’ll connect (phones + tablets + laptops adds up fast)

If you’re not 100% sure, the quiz result above is designed to be the “safe choice”.

Setup expectations (so there are no surprises)

If you chose eSIM

  • Setup is usually fast (often minutes)
  • You’ll likely scan a QR code / activate in settings
  • Best if you want no pickup, no delivery, no extra device

If you chose Pocket WiFi

  • You’ll get a small router you carry
  • You’ll connect like normal WiFi
  • Expect to charge it like a phone (many people carry a power bank)

If you chose a SIM card

  • You’ll insert the SIM and enable mobile data
  • Some phones require a quick APN step (usually explained clearly)
  • Great if you want simple, physical, predictable setup

Frequently asked questions

Do I really need Pocket WiFi in Japan?

Not always. If you’re solo and your phone supports eSIM, eSIM is usually the simplest option. Pocket WiFi shines when you need to share internet across multiple devices.

Is Pocket WiFi better than eSIM?

Pocket WiFi is better for 2+ devices, families, and laptops/tablets. eSIM is better for one phone and minimal hassle.

What if I’m not sure my phone supports eSIM?

Choose Not sure in the quiz (like you’ve already included) and follow the recommendation. If you can’t confirm eSIM compatibility quickly, a physical SIM or Pocket WiFi is usually the safest path.

Will this work outside Tokyo/Osaka/Kyoto?

In most tourist areas, coverage is excellent. Very remote mountains and deep countryside can be weaker — but for normal travel routes, you’ll be fine.

Data-only is fine, right?

For most travelers, yes. You can use WhatsApp, LINE, Messenger, FaceTime Audio, etc. over data. If you specifically need traditional calls/SMS, choose that option in the quiz.