TSR

Asia

Japan eSIM picks

Japan has excellent eSIM coverage. Nearly all major providers resell either Softbank or NTT Docomo capacity, so real-world speeds are uniformly good — the decision comes down to price and unlimited vs capped data.

At a glance

  • Best value: Nomad’s 7-day 5 GB plan
  • Best for heavy use: Holafly unlimited
  • Best for short trips (<3 days): Airalo 1 GB plans

Network notes

Japan’s three carriers — Softbank, NTT Docomo, and KDDI — all offer excellent nationwide LTE/5G coverage, including on the shinkansen. Whichever provider’s eSIM you pick, expect solid performance.

Practical tips

  • Install the eSIM before you land. Narita and Haneda Wi-Fi can be flaky.
  • Most eSIMs are data-only — no Japanese phone number. Use LINE for calls.
  • Airalo’s Asialink regional plan covers Japan plus the rest of East/SE Asia.

Recommended providers

Airalo

The largest eSIM marketplace, with plans in 200+ countries.

4.5 / 5
From
$4.50
Countries
200+
Hotspot
Yes

Dracotel

One eSIM. 200+ countries. No plans — just pay-as-you-go for $1 a month.

Editor's pick
4.7 / 5
From
$1.00
Countries
200+
Hotspot
Yes

Holafly

Daily-"unlimited" data eSIMs aimed at heavy users — but watch the fair-use throttle.

4.2 / 5
From
$6.90
Countries
170+
Hotspot
No

Nomad

Polished eSIM app with clear, transparent pricing.

4.3 / 5
From
$3.50
Countries
175+
Hotspot
Yes