By
Christie Graham - Digital Content Editor
Last updated

Japan is one of Asia's most travelled destinations but if you're confused about how to keep in touch with everyone back home, you have a few affordable options to choose from.

Some retailers allow you to pre-order SIMs online for added peace of mind. Otherwise, you can pick up a local SIM upon arrival. In this guide, we'll discuss both options and which options have greater value so you don't get caught out by excess call or data charges.

Travel eSIMs for Japan


For an extended stay in Japan your budget might benefit from using a travel eSIM. There are lots of travel eSIM providers out there.

Here's a quick overview of some of some well-known brands to see how their eSIMs compare:

Travel eSIMs for Japan

Provider Prices start at
Airalo $6 for 1GB with 3-day expiry up to $104.50 for unlimited data with 30-day expiry View on Airalo
Jetpac $8 for 3GB with 1-day expiry up to $104 for unlimited data with 30-day expiry View on Jetpac
SIMCorner $5 for 1GB with 7-day expiry up to $107 for unlimited data with 31-day expiry View on SIMCorner

Airalo's Japan travel eSIMs use the Softbank and KDDI 5G networks. Jetpac's use KDDI and Rakuten 5G networks. SIMCorner' Flexi eSIMs use Softbank and KDDI while an Ultra eSIM will also enable access Rakuten and docomo.

Just be aware you will need to have an eSIM-enabled smartphone to use them. Before you leave or when you arrive in Japan, you'll scan a QR code and download a digital SIM card to your phone.

Expert tip: eSIM is a great solution for Japan

"On a recent trip to Japan, I utilised an Airalo eSIM for connectivity. It was easy to set up before my flight and connected straight away when I landed. You can easily add more data if you need it by purchasing a subsequent top-up package, which activates as soon as your initial services runs out."

"Price-wise, Airalo ended up being way more affordable than if I'd signed up for a roaming pack with my Australian telco. It even offers a free one-day welcome eSIM with 1GB to get you started."

Dylan Crismale, Digital Content Editor

Can you buy a local SIM card in Japan?


Temple surrounded by cherry blossoms

If you don't have an eSIM-ready phone but are still looking at a longer trip you can opt to grab a local Japanese SIM card. 

International roaming is handy but it's not the most affordable long-term option which makes a local SIM the next best choice after a travel eSIM. 

Your smartphone should be compatible with Japanese mobile networks, but make sure yours is unlocked before taking it overseas.

Here are a few examples of providers that offer physical SIMs for travellers. 

Sakura Mobile

Sakura Mobile offers a physical SIM card for travellers in Japan. It has both 4G and 5G mobile plans that are data-only. It will let you purchase SIMs with varying expiries — if you're going on a longer trip for example of around 45 days they'll ship you a 31-day SIM and a 15-day SIM. 

You get high speed data subject to the fair use policy of 3GB per day, after which your speed is limited to 1Mbps for that day.

Here's a quick look at some sample pricing in AUD:

4G Unlimited Sakura SIM card on the docomo network
  • $44.34 with a 7-day expiry
  • $46.61 with a 10-day expiry
  • $58.26 with a 15-day expiry
4G/5G Unlimited Data SIM card on the KDDI-Au network
  • $44.82 with a 7-day expiry
  • $53.78 with a 10-day expiry
  • $67.22 with a 15-day expiry

Mobal

Mobal also specialises in short-term Japanese SIMs, which can be shipped directly before you head to Japan or you can pick-it up when you arrive. It offers three duration types and their pricing and inclusions are as follows:

  • ¥5,800 (AUD$52.01) for 25GB with an 8-day expiry
  • ¥6,490 (AUD$58.20) for 25GB with a 16-day expiry
  • ¥7,920 (AUD$71.02) for 50GB a with 31-day expiry

It also has options with voice via a Japanese phone number, but you'll need to provide ID by Japanese law. These plans start at ¥7,920 (AUD$79.90) for 7GB with 30-day expiry.

Travel eSIM vs roaming in Japan with your telco


The best match is really going to depend on your exact travel plans and buget. Travel eSIMs tend to offer a bit more flexibility or are simply cheaper than traditional international roaming add-ons. However, the latter generally includes calls and texts whereas most travel eSIMs are 4G/5G data only. 

Even cheaper $5 roaming add-ons can quickly stack up on longer trips. Here's a look at a few of the provider's with some of the better roaming options.

Roaming in Japan with felix mobile

felix mobile is one of the few smaller providers with a genuinely great roaming offer: a $20 roaming pack. This gets you 4GB of data, 100 texts, and 100 minutes of calls. 4GB goes a long way, especially if you're frequently using public WiFi and its valid for 365 days. 

Here are felix mobile's plans:

felix mobile
felix mobile

felix 25GB Mobile Plan

  • 25GB data at download speeds up to 150Mbps
  • Deal: Get 50% off your first 3 mths when you switch to felix. $15/mth for first 3 mths, then $30/mth. Use promo code FELIX50. T+Cs apply
$30.00
Per 1 Month Renewal
felix mobile
felix mobile

felix 50GB Mobile Plan

  • 50GB data at download speeds up to 150Mbps
  • Deal: Get 50% off your first 3 mths when you switch to felix. $17.50/mth for first 3 mths, then $35/mth. Use promo code FELIX50. T+Cs apply
$35.00
Per 1 Month Renewal
felix mobile
felix mobile

felix Unlimited Mobile Plan

  • Unlimited data at download speeds up to 40Mbps
  • Deal: Get 50% off your first 3 mths when you switch to felix. $20/mth for first 3 mths, then $40/mth. Use promo code FELIX50. T+Cs apply
$40.00
Per 1 Month Renewal
felix mobile
felix mobile

felix Unlimited+ Mobile Plan

  • Unlimited data at download speeds up to 80Mbps
$50.00
Per 1 Month Renewal

felix's international roaming option works in around 40 destinations including Japan. felix is powered by the Vodafone network.

Roaming in Japan with Vodafone

For shorter trips, Vodafone postpaid plans are an ideal choice for heading overseas thanks to its $5 roaming option. For $5 per day, you can use your local inclusions overseas in over 100 countries, including Japan. This means you can rest assured your usage will work the same way it does in Australia without the risk of exceeding your data allowance.

The $5 per day charge will only be added to your bill on days when you make a call, send a text, or use data overseas. Just note, you can only use $5 roaming for a maximum of 90 days of the calendar year.

These Vodafone postpaid plans all include $5 roaming:

Vodafone
Vodafone

$58 Small SIM Only Plan

  • 65GB data
  • Deal: Includes $13/mth off plan fees for first 12 months when you stay connected to this plan. Ends 29.10.26. T&Cs apply.
$45.00/mth
Min. cost $45
Vodafone
Vodafone

$68 Medium SIM Only Plan

  • 220GB data
  • Deal: Includes $18/mth off plan fees for first 12 months when you stay connected to this plan. Ends 29.10.26. T&Cs apply.
$50.00/mth
Min. cost $50
Vodafone
Vodafone

$78 Large SIM Only Plan

  • 420GB data
  • Deal: Includes $23/mth off plan fees for first 12 months when you stay connected to this plan. Ends 29.10.26. T&Cs apply.
$55.00/mth
Min. cost $55

Roaming in Japan with Optus

If you're an Optus postpaid customer, you can make use of its $5 Roaming option. For just $5 per day, travellers will be able to use their usual SIM with unlimited standard talk and text. Additionally, you get 5GB of data, which lasts until it's used. For Optus roaming, you may need to switch to a newer Optus postpaid plan to be eligible for $5 roaming.

The Optus plans below work with its $5 roaming option:

Optus
Optus

$60 Optus Choice Plus Plan

  • 100GB data
  • Deal: $39/mth and 100GB/mth for first 12 months, then 60GB/mth and $60/mth or as notified. New services. Ends 12.11.26. Terms apply.
$39.00/mth
Min. cost $39
Optus
Optus

$69 Optus Promo Plan

  • 360GB data
  • Deal: Get up to $10/mth SubHub credit to use on your favourite subscriptions for 12 months. T&Cs apply.
$69.00/mth
Min. cost $69
Optus
Optus

$70 Optus Choice Plus Plan

  • 240GB data
$70.00/mth
Min. cost $70
Optus
Optus

$90 Optus Choice Plus Plan

  • 480GB data
  • SubHub: Receive up to $20/mth SubHub credit when you have an active SubHub account with subs greater than $0. T&Cs apply
$90.00/mth
Min. cost $90

$5 Roaming only works in what Optus calls "Zone 1" countries but this includes Japan as well as China, Europe, the UK, the USA and New Zealand. "Zone 2" (any country not part of "Zone 1") is predominantly made of countries in the Middle East, Africa, and Central and South America.

These can also be paired with a new phone. If you have an Optus prepaid mobile plan, you have a few different roaming options:

Pack Price Inclusions
1-day expiry $5 25 mins, 50 texts, 1GB
14-day expiry $25 50 mins, 50 texts, 5GB
28-day expiry $45 100 mins, 100 texts, 10GB
186-day expiry $75 100 mins, 100 texts, 15GB

Do I really need a travel eSIM for Japan?


Travel eSIMs are great when you need data to navigate, manage your travel plans, browse or make calls back home over messaging apps that use data like WhatsApp.

Japan does have widely available public WiFi networks available in restaurants, hotels, attractions, some trains and city centres across Japan. You can check out maps of available WiFi through an app suchInstabridge to help you connect on the go.

That being said a travel eSIM with even a few gigabytes of data can be good for peace of mind while travelling.

Christie Graham

Digital Content Editor

Christie Graham
Christie Graham is a tech industry expert and former head copywriter for Harvey Norman's Computers and Tech category. She won a national Newscorp writing competition to review TV shows on Binge, and keeps busy juggling her many hobbies including baking, painting, archery, stargazing, tending to her chickens, training her Border Collie, expanding her Harry Potter replica collection, and making lists (much like this one).

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