Telstra roaming in Japan: what it costs, and when an eSIM is cheaper

With Telstra, data in Japan costs A$10.00/day (International Roaming Day Pass - Zone 2), so A$70.00 for 7 days and 6 GB. An eSIM covering 7 days and 6 GB costs from $12.99 (GoMoWorld).

The best eSIMs in Japan for a week

For 7 days and 6 GB

1Best unlimited
PlanJapan
Japan specialist
Unlimited · 7 days
$33.00$4.71 per day
- No daily cap announced
- Network: NTT Docomo
- Hotspot up to 10 GB a day
See the plan
2Cheapest
GoMoWorld
14 GB · 30 days
$12.99$0.93 per GB
- Lowest total price for 7 days
- Hotspot allowed
See the plan
3Best price per GB
Orange Travel
20 GB · 14 days
€14.99€0.75 per GB
- Lowest price per GB for this trip
- Networks: NTT Docomo, KDDI (au), SoftBank, and Rakuten Mobile
- Hotspot allowed
See the plan

Three steps, three questions: the best unlimited plan, the cheapest and the best price per GB, from three different providers. How we pick the podium · Affiliate links

Telstra or an eSIM in Japan: our verdict

Depending on your plan and trip length, at the prices read on October 22, 2026.

Your Telstra plan

Not included

No plan on Telstra’s rate sheet includes Japan: data there costs extra.

With Telstra

A$10.00/day

International Roaming Day Pass - Zone 2. For 7 days and 6 GB, expect A$45.00.

With an eSIM, 7 days and 6 GB

$12.99

Today’s lowest price, from GoMoWorld.

See the plan

Affiliate links

Data in Japan with Telstra: our analysis

What Telstra’s rate sheet and eSIM prices show, as checked on October 22, 2026.

The right pass for your trip length

3 days14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 minA$25.00
1 week3 × 7 Day Travel Pack, 2GB, 25 SMS/MMS, 25 minA$45.00
2 weeks3 × 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 minA$75.00
1 month6 × 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 minA$150.00

Against the cheapest eSIM

Telstra charges in AUD and the cheapest eSIM is sold in USD: we convert nothing. For a week, expect A$45.00 with Telstra and $12.99 with the eSIM (GoMoWorld).

eSIMs in Japan at a glance

In Japan, we compare plans from 8 eSIM providers: GigSky, GoMoWorld, Jetpac, Nomad, Orange Travel, PlanJapan, Ubigi, and Yesim.
The cheapest unlimited plan for a week is from PlanJapan: $33.00 (Unlimited · 7 days).
Locally, the cheapest prepaid SIM card for a week costs ¥2,980 excl. tax (IIJmio, 6 GB, 30 days); see our SIM card comparison in Japan.
A pocket WiFi rents from ¥5,280 a week (eConnect Japan); see pocket WiFi rental in Japan.

Telstra applies the same rate in 20 other destinations we track, including Canada, China, Egypt, France, and Greece.

Plan by plan

What applies in Japan depending on your Telstra plan.

What Telstra’s official rate sheet sets out in Japan, offer by offer. No plan includes it: each offer below is charged on top of your subscription.

Plan or offer	Data in Japan	Good to know
International Roaming Day Pass - Zone 2	A$10.00/day	2GB per day plus unlimited standard calls and SMS; Data Top-Up 2GB for AUD 10 (valid 31 days). Upfront plans: 24 hours from first use; other plans: until 11:59pm AEST.
Pre-Paid	A$10.00 for 3 days	3 Day Travel Pack (400MB, 15 SMS/MMS, 15 min)
Pre-Paid	A$15.00 for 7 days	7 Day Travel Pack (2GB, 25 SMS/MMS, 25 min)
Pre-Paid	A$25.00 for 14 days	14 Day Travel Pack (4GB, 50 SMS/MMS, 50 min)

What your trip costs

With the Telstra roaming rate, against today’s cheapest eSIM, for everyday use.

Trip	With Telstra	Cheapest eSIM	The offer
3 days · 3 GB	A$25.00 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 min	$4.99 GoMoWorld	See the plan
7 days · 6 GB	A$45.00 3 × 7 Day Travel Pack, 2GB, 25 SMS/MMS, 25 min	$12.99 GoMoWorld	See the plan
14 days · 12 GB	A$75.00 3 × 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 min	$12.99 GoMoWorld	See the plan
30 days · 24 GB	A$150.00 6 × 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 min	$24.99 GoMoWorld	See the plan

Every eSIM in Japan →

Affiliate links

Japan with other Australian carriers

The same trip with the other Australian carriers we track, from their official rate sheets.

None of the 3 Australian carriers we track includes Japan in a plan.

Carrier	Included with	A week (6 GB)
Optus	—	A$35.00 7 × Optus Daily Roaming
Vodafone Australia	—	A$35.00 $35 Roaming Add-on, 7 days, 7GB, 350 min, 250 texts

Turn off Telstra roaming and use an eSIM

Four settings, before you leave or on the plane.

1
Install the eSIM at home
Buy it and scan its QR code before you leave: with most providers, the plan only starts when you first connect at your destination.
2
Keep Telstra for calls
In your settings, keep your Telstra line for calls and texts, and pick the eSIM for mobile data.
3
Turn off Telstra roaming
On iPhone: Settings › Cellular › your Telstra line › Data Roaming. On Android: Settings › Mobile networks › Roaming.
4
Keep eSIM roaming on
A travel eSIM uses the local networks: its data roaming must stay on.

Telstra roaming in Japan: your questions

Answered from the Telstra price guide and today’s prices.

Is data in Japan included in my Telstra plan?

No, not with the standard Telstra plan: A$10.00/day (International Roaming Day Pass - Zone 2).

How much does data cost in Japan with Telstra?

A$10.00/day (International Roaming Day Pass - Zone 2), so A$70.00 for 7 days and 6 GB. An eSIM covering the same week costs from $12.99 (GoMoWorld), checked on October 22, 2026.

Which Telstra pass should I get for Japan?

The best Telstra option depends on how long you stay: for 3 days, 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 min (A$25.00); for a week, 3 × 7 Day Travel Pack, 2GB, 25 SMS/MMS, 25 min (A$45.00); for two weeks, 3 × 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 min (A$75.00); for a month, 6 × 14 Day Travel Pack, 4GB, 50 SMS/MMS, 50 min (A$150.00).

Telstra or an eSIM in Japan: which is cheaper?

Telstra charges in AUD and the cheapest eSIM is sold in USD: we convert nothing. For a week, expect A$45.00 with Telstra and $12.99 with the eSIM (GoMoWorld).

Which Australian carriers include Japan?

None of the 3 Australian carriers we track includes Japan in a plan.

Which network does an eSIM use in Japan?

Depending on the plan, the 8 providers we compare in Japan list NTT Docomo, SoftBank, KDDI (au), and Rakuten Mobile.

How do I avoid roaming charges in Japan?

Use a travel eSIM for data and turn off data roaming on your Telstra line. You keep your number for calls and texts.

Can I keep my Telstra number with an eSIM?

Yes, on an eSIM-compatible phone: your Telstra line stays on for calls and texts while the eSIM carries the data.