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Destination · Asia

Best eSIM for Japan from Australia

77 plans from 6 providers, priced in Australian dollars and ranked by cost per GB.

Prices checked 29 Oct 2026 · Page updated 29 Oct 2026
Best for

Our picks for Japan

Each pick follows the rule shown, applied to the table below.

01 · CheapestJetpac
3 GB · 7 daysA$11.00
KDDI, Rakuten · Hotspot · 5GA$3.67/GB

Rule: lowest price with at least 3 GB and 7 days.

Get Jetpac plan
02 · Most dataJetpac
40 GB · 30 daysA$55.00
KDDI, Rakuten · Hotspot · 5GA$1.38/GB

Rule: lowest cost per GB with at least 20 GB; ties go to more data, then more days.

Get Jetpac plan
03 · UnlimitedSaily
Unlimited · 10 daysA$49.61
KDDI, SoftBank · Hotspot · 5GA$4.96/day

Rule: lowest price per day, comparing each provider's 10-day plan or its nearest from 7 days (compared at 10 days).

Get Saily plan
04 · Best networkJetpac
30 GB · 30 daysA$47.50
KDDI, Rakuten · Hotspot · 5GA$1.58/GB

Rule: best published network (Docomo or KDDI first), then 5G, then hotspot; lowest cost per GB with at least 5 GB and 7 days. Based on published network, not yet speed-tested.

Get Jetpac plan
All plans

Compare 77 Japan plans

Showing 15 of 77 · prices in AUD, checked 29 Oct 2026 · fixed-data plans by cost per GB, then unlimited by price per day. Sorted by cost per gb, low to high.

  • JetpacMost data
    A$55.00
    40 GB · 30 daysA$1.38/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$14.50
    10 GB · 1 dayA$1.45/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • JetpacBest network
    A$47.50
    30 GB · 30 daysA$1.58/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$25.50
    15 GB · 7 daysA$1.70/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Airalo
    A$35.00
    20 GB · 15 daysA$1.75/GB
    SoftBank, KDDI · Hotspot: Yes · 5GGet plan
  • Saily
    A$35.43
    20 GB · 30 daysA$1.77/GB
    KDDI, SoftBank · Hotspot: Yes · 5GGet plan
  • Airalo
    A$36.50
    20 GB · 30 daysA$1.83/GB
    SoftBank, KDDI · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$18.50
    10 GB · 4 daysA$1.85/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$9.50
    5 GB · 1 dayA$1.90/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Ubigi
    A$95.00
    50 GB · 30 daysA$1.90/GB
    KDDI, Docomo, SoftBank · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$20.50
    10 GB · 7 daysA$2.05/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$11.00
    5 GB · 4 daysA$2.20/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Jetpac
    A$33.00
    15 GB · 30 daysA$2.20/GB
    KDDI, Rakuten · Hotspot: Yes · 5GGet plan
  • Ubigi
    A$55.00
    25 GB · 30 daysA$2.20/GB
    KDDI, Docomo, SoftBank · Hotspot: Yes · 5GGet plan
  • Ubigi
    A$24.00
    10 GB · 7 daysA$2.40/GB
    KDDI, Docomo, SoftBank · Hotspot: Yes · 5GGet plan

Cost per GB is price ÷ data; unlimited plans show price per day. Airalo unlimited (3, 5, 7, 10, 15 and 30 days): slows to 1 Mbps after 3 GB a day. Holafly unlimited (3, 5, 7, 10, 15 and 30 days): may slow speeds for up to a day under its fair-use policy; no threshold or speed is stated. Jetpac unlimited (3, 5, 7, 10, 15, 21 and 30 days): slows to 1 Mbps after 3 GB a day. Saily unlimited (3, 5, 7, 10, 15 and 30 days): slows to 1 Mbps after 5 GB a day. Simify unlimited (3, 5, 7, 10, 15 and 30 days): may slow speeds for up to 24 hours under its fair-use policy; no threshold or speed is stated. Ubigi unlimited (8 days): slows to 2 Mbps after 5 GB a day. Ubigi unlimited (15 days): slows to 2 Mbps after 30 GB. Ubigi unlimited (30 days): slows to 2 Mbps after 60 GB.

The table lists plans of 30 days or less. Holafly and Simify also sell longer Japan plans.

Providers

Who sells Japan eSIMs

Listed A to Z. Each phone screen points out one fact from that provider's details or plans. Screens are illustrative.

Airalo logo

Networks
SoftBank, KDDI
Plans from
A$6.00 · 17 plans
Hotspot · 5G
Yes · Yes
Unlimited
Yes
Visit AiraloReview
From A$6.00, 17 plans

Holafly logo

Networks
KDDI, SoftBank
Plans from
A$19.00 · 6 plans
Hotspot · 5G
Limited · Yes
Unlimited
Yes
Visit HolaflyReview
All plans unlimited, fair use applies

Jetpac logo

Australian company
Networks
KDDI, Rakuten
Plans from
A$8.00 · 24 plans
Hotspot · 5G
Yes · Yes
Unlimited
Yes
Visit JetpacReview
Connects through KDDI and Rakuten

Saily

Networks
KDDI, SoftBank
Plans from
A$5.66 · 11 plans
Hotspot · 5G
Yes · Yes
Unlimited
Yes
Visit SailyReview
Needs its app to install

Simify logo

Australian company
Networks
Docomo, SoftBank
Plans from
A$16.20 · 10 plans
Hotspot · 5G
Yes · Some plans
Unlimited
Yes
Visit SimifyReview
Australian company with phone support

Ubigi

Networks
KDDI, Docomo, SoftBank
Plans from
A$6.00 · 9 plans
Hotspot · 5G
Yes · Yes
Unlimited
Yes
Visit UbigiReview
Connects through KDDI, Docomo and SoftBank
Method · updated 29 Oct 2026

How we compare Japan eSIMs

  1. We take each plan's price from the provider's site and convert it to Australian dollars on the check date.
  2. Cost per GB is price divided by data. Unlimited plans are compared by price per day.
  3. Network is the Japanese carrier the eSIM connects to. Hotspot and 5G are as the provider states them.
  4. Each pick follows the rule printed with it, and each is a different plan. Remaining ties go to the lower total price.
  5. We recheck prices at least every 30 days and show the check date on every plan.

How we make money

eSIM Mate is free to use. No link on the site earns a commission yet. Once a provider approves us, its links will: the provider pays us, never you. That will never change your price or the order of plans, and we list providers whether or not they pay us.

Read our full disclosure
Best network · Jetpac30 GB · 30 days · A$47.50
Get plan