日Japan Trip
Calculator
EN
EnglishFrançaisDeutschEspañolالعربية
ESIM JAPAN · PUBLISHED PRICES COMPARED

Holafly eSIM Review for Japan (2026)

This review covers every Holafly plan for Japan, 6 in total, with prices checked on September 24, 2026. In our ranking for a typical trip, Holafly comes #4.

Updated September 24, 2026Prices checked September 24, 2026

We may earn a commission if you buy through our links, at no extra cost to you. It never changes the computed ranking. Affiliate disclosure

All Holafly plans for Japan

Score: 6.2/10 · #4/5

Networks
KDDI, SoftBank
5G
Yes
Hotspot
Yes
App
Yes
Top-up
Not stated
Phone number
No
Unlimited
Yes
PlanDataValidityPricePrice/GB
Japan Unlimited 3 daysUnlimited3 days$11.90—
Japan Unlimited 5 daysUnlimited5 days$20.50—
Japan Unlimited 7 daysUnlimited7 days$27.50—
Japan Unlimited 10 daysUnlimited10 days$36.50—
Japan Unlimited 15 daysUnlimited15 days$50.50—
Japan Unlimited 30 daysUnlimited30 days$73.90—
View plan — Holafly

Alternatives to Holafly

What matters here

In Japan, Holafly publishes KDDI and SoftBank as partner networks. 5G is announced. Hotspot sharing is allowed.

Holafly only sells unlimited plans for Japan, in several lengths. That makes it simple to choose, but more expensive than a fixed plan for light users.

Plans are managed in the Holafly app. Plans are data only, without a Japanese phone number.

Our score for Holafly is computed, not given: price for the need of each page, Japanese network, hotspot and options. That is why Holafly can rank differently on a 3-day page and on a 30-day one. The duels linked below compare it one to one with each alternative.

Before paying, check that your phone is unlocked and eSIM-compatible: the option usually sits under Mobile data or Cellular in the phone’s settings.

Guides on this site

How much data do you need?

Pick your trip length and how you use your phone. The assumptions are visible and editable.

Usage
Assumptions (MB per day)
Estimated data—Plan that covers it

—

Install your eSIM in 4 steps

  1. 1

    Buy the plan before you leave and keep the QR code or the app handy.

  2. 2

    Install the eSIM at home on Wi-Fi. Most plans only start the validity period once the eSIM connects in Japan.

  3. 3

    On landing, switch the eSIM on for mobile data and keep your home SIM for calls and texts if you need them.

  4. 4

    Turn on data roaming for the eSIM line, then check that the phone shows a Japanese network.

Your phone must be carrier-unlocked and eSIM-compatible. Check this in your phone settings before you buy.

Frequently asked questions

Is Holafly good for Japan?

Holafly ranks #4 in our comparison for a typical trip, based on its published Japan plans from $11.90. The pros and cons above come from what it publishes.

Which network does Holafly use in Japan?

Holafly publishes KDDI and SoftBank for Japan. Coverage is good in cities with all major Japanese networks.

Does Holafly allow hotspot in Japan?

Yes, Holafly publishes hotspot sharing as allowed; some plans may cap the shared volume per day.

What are the alternatives to Holafly?

The alternatives section above lists the next best providers in our ranking, and each duel page compares two providers side by side.

When should I install the eSIM?

Install it at home on Wi-Fi a day or two before you fly, then switch it on for mobile data when you land. With most providers the validity only starts once the eSIM connects to a Japanese network.

Can I keep my own number while using the eSIM?

Yes. Most phones run two lines at once: keep your usual SIM for calls and texts and use the Japan eSIM for data. Turn off data roaming on your home line to avoid charges.