Get Exclusive App Deals
English
Product #121279
1
Teenager demonstrating Optus eSIM service with 'Australia' and '1-click Installation' displayed on the phone screen, against a beautiful Australian landscape, highlighting convenient high-speed internet for Australia travel.

[30% OFF] Australia Data Unlimited eSIM | Optus

4.1Very Good
Sold 10K+

No cancellation

  • Supports iOS one-click installation: With the latest version of the iOS app and updated to iOS 17.4 or higher, you can install eSIM with one click from the KKday app.
  • Local carrier is Optus. 
  • Choose from 500MB/1GB/2GB/3GB of data at up to 4G speeds and your preferred usage days. (No hotspot / voice, text available). 
  • For more data plans, check this USIM & Wi-Fi
  • For eSIM plans, refer to Product F&Qs (including not-supporting devices).
[5% App discount] Code: APP5OFF , HK: APP15HK
Instant confirmation

Package Options

What You Can Expect

eSIM compatible devices

English language Australia Optus eSIM compatible devices list, showcasing major phone models from Apple, Samsung, Google, Huawei, and Motorola, assisting international travelers in confirming device support.

eSIM installation Instruction

English language Australia eSIM installation instructions, with step-by-step visual guide on activating Optus high-speed internet service on iPhone, facilitating easy network usage for international travelers in Australia.

SIM Card Specifications

Data Usage SpecificationsUnlimited data, 500MB, 1GB, 2GB, 3GB
Transmission Specifications4G
Signal Coverage AreaAustralia
Mobile CarrierOptus
Supported SizeseSIM
Hotspot SharingUnavailable
Supported Frequencies(4G)B1(2100 MHz), B8(900 MHz)
ExcludesVoice calls, Texts
Not SupportedSIM-locked device, Carrier-customized device, Mobile hotspot
Reminders

・The Internet speed will be reduced after exceeding the daily limit

Validity: The eSIM is valid for 6 months. Once registered, it can be used on your selected dates.

Network TypeRoaming
Mobile Virtual Network Operator (MVNO)China Mobile International Limited

Important Info

Includes/Excludes

  • eSIM

Reminders

  • Please ensure your phone supports eSIM before purchase. Once the eSIM QR code is sent, this product is non-refundable.

  • Only iOS 12.1 or later is supported. iPhones purchased in Mainland China, Hong Kong, or Macau do not support eSIM.

  • If your phone cannot scan QR codes, please print the voucher in advance or install a QR code app.

  • The eSIM can be used immediately after installation. During installation, you must be connected to Wi-Fi or a mobile network. It is recommended to install it before departure or use free Wi-Fi at the airport.

  • The eSIM can be used immediately after installation. After confirming your travel dates, register the eSIM on your selected usage date.

  • Instruction manual: iOS [English] https://asset.usimsa.com/kkday/manual/ios-esim-us.pdf

  • Instruction manual: Android [English] https://asset.usimsa.com/kkday/manual/android-esim-us.pdf

  • Calculation method of days: 24-hour system (user purchases a 3-day eSIM and installs it at 10:00 am, 9/1. The eSIM will be terminated at 9:59 am, 9/4)

How to Use

  • To install the eSIM, follow these steps:
  1. You can also use your voucher to obtain a verification code.
  2. Scan the QR code on your phone to install the eSIM.
    - Before use, make sure data roaming is enabled.
    - If your phone cannot scan QR codes, please print the voucher or install a QR code app in advance.

If you are using an iPhone, please click here for instructions

If an installed eSIM is deleted, we will notify you in advance. You must rebook, as it cannot be reinstalled. 

  • FAQ 

Q: What if the APN settings do not activate automatically? 

A: 

1. Follow the APN setup instructions provided in your eSIM voucher. 

2. Restart your phone, check if the eSIM is recognized, and confirm the connection. 

3. Contact your phone manufacturer or telecom provider to ensure the device is properly unlocked. 

4. Check with your domestic telecom provider to confirm that mobile protection services are not interfering.


Validity Period

  • Valid for use within 180day(s) from the date of issue; Invalid after expiration

Cancellation Policy

  • Once the order has been completed, it cannot be canceled, modified, or refunded
NOTE
  • Due to time zone differences, the confirmed cancellation date is based on the supplier’s local time. Please allow 2–5 business days to process your cancellation request, after which the cancellation fee will be charged according to the product’s cancellation policy. Once the cancellation is confirmed, you will receive your refund within 14 working days.

FAQ

1. What are the key features and data plans offered by the Australia Data eSIM powered by Optus?

The Australia Data eSIM utilizes the reliable Optus network, offering speeds up to 4G. It provides various data plans including 500MB, 1GB, 2GB, and 3GB to suit different travel needs. A notable feature is the iOS one-click installation for devices updated to iOS 17.4 or higher, streamlining the setup process for convenient activation.

2. How can I purchase and activate the Australia Data eSIM for my trip?

You can easily purchase the Australia Data eSIM online. After purchase, an eSIM profile will be delivered digitally for activation. For iOS users (17.4+), a convenient one-click installation is available directly through the KKday app, simplifying the setup process and ensuring you're connected quickly upon arrival. KKday offers a seamless booking experience and dedicated customer support to assist with any queries.

3. What kind of network performance can users expect from the Optus Australia Data eSIM?

The Optus Australia Data eSIM operates on the Optus network, providing up to 4G speeds. Users can generally expect reliable internet access in major cities and popular tourist destinations across Australia, allowing for smooth browsing, navigation, and communication during their travels. Performance may vary in remote or very rural areas.

4. Does the Australia Data eSIM offer unlimited high-speed data for continuous usage?

The Australia Data eSIM offers specific data allowances: 500MB, 1GB, 2GB, or 3GB, all at speeds up to 4G. While the plan offers flexible usage days, it does not provide truly unlimited high-speed data. Users should select a data package that best matches their expected usage to ensure sufficient connectivity throughout their trip.

5. What data allowance options are available for the Australia Data eSIM, and how do they cater to different usage needs?

The Australia Data eSIM offers various data allowances, including 500MB, 1GB, 2GB, and 3GB. The 500MB option is suitable for light browsing or emergency use, while 1GB suits moderate usage like navigation and social media updates. For heavier data users or longer trips, the 2GB and 3GB options provide more extensive connectivity for frequent online activity.

6. What are the requirements for using the iOS one-click installation feature for the Australia Data eSIM?

To utilize the convenient iOS one-click installation for the Australia Data eSIM, your device must be updated to iOS 17.4 or higher. Additionally, ensure you have the latest version of the KKday app installed on your iPhone to access this streamlined setup process, making activation quick and effortless.

7. Can the Australia Data eSIM be used for mobile hotspot tethering or traditional calls and texts?

No, the Australia Data eSIM is designed exclusively for internet data usage. It does not support mobile hotspot tethering, traditional voice calls, or sending/receiving SMS text messages. Users should consider alternative communication methods if these features are essential for their travel requirements.

8. How flexible are the usage days for the Australia Data eSIM once activated?

The Australia Data eSIM allows you to select your preferred number of usage days when purchasing, providing flexibility to match your specific travel itinerary. Once activated, the eSIM remains valid for the chosen duration, ensuring you have continuous internet connectivity throughout your specified trip length.

Get Help

KKday Help Center