Any and all advice, guides, and reviews are unbiased and based on my personal experience. If you buy through affiliate links, I may earn commissions, which helps support my website. This does not have an impact on posts or my opinion of any reviewed products. If you find this post helpful and want to say thanks, please buy me a coffee or take a look at my book on Amazon. It keeps this page ad-free. Thank you!
G’Day!
This post ranks Australian eSIMs. This post is not intended for Australians, it’s more for people who are visiting Australia and need mobile data when on the ground. All of the information is current as of December 2025/January 2026.
I have tested these Australian eSIM providers on my iPhone 16 Pro (GSM), so it’s my personal experience. For those not familiar with eSIMs, this means you get a QR code that you can scan with your phone to activate the data while keeping your existing number. All you need to do is change the settings on your phone to use the eSIM for data. Saving you roaming costs and giving you higher-speed data.
the BEST Roaming eSIM for Australia: Amaysim
The best option is Amaysim. I have used their service multiple times. Amysim is owned by Singtel-Optus an Australian domestic carrier. It’s 100% a pre-paid service. Prices depend on how much data you need but start at AU$15 for 4GB of data. But they frequently have specials. Speeds are 4G, with 5G available but only on more expensive tiers ~AU$50. Plans last for 28 days and you can manage your usage and renewals in their free mobile app. What I love about Amaysim is you also get a local domestic Australian mobile number, so you can call anyone in the country. More expensive plans also include international calls. Amaysim is now my preferred Australian roaming eSIM whenever I visit the country. The are two things to keep an eye out for 1. to ensure you don’t sign up for automatic renewal, and 2. you can only activate the eSIM on arrival in Australia. But you can pre-purchase it from anywhere and activate it when you land.
Price: Starts at AU$15 but is frequently on sale.
Mobile Network: Optus 4G/LTE also has 5G Plans
Other Australian Mobile Data Roaming Options.
T-Mobile USA
If you’re in the US and on T-Mobile, some of their plans included unlimited 2G roaming in Australia and T-Mobile do offer high-speed “data passes” depending on your plan. You can learn more here, but at the top end, it’s US$50 for 15GB of LTE data over 30 days. While T-Mobile data passes are expensive compared to buying a travel eSIM for Australia, T-Mobile also includes unlimited voice calling (but not to Australian mobiles). So if you need to make frequent voice calls back to the states, or to Australian landlines, it could be a useful option to consider. In my tests, in Australia, T-Mobile roams on the Optus network. T-Mobile’s 2G roaming speed is awfully slow and almost unusable, so pay for high speed data or get an eSIM from Amaysim.
LTE Modem
One useful option if you have multiple devices (traveling with family, etc) is to buy an Australian pre-paid LTE modem and use it for WiFi. This is great for road trips, etc. Australian prepaid modems can be found for under AU$50 at local Australian supermarkets (Coles or Woolworths). Keep in mind, modems will be carrier-locked, so if you buy a Telstra LTE Modem, you are stuck with Telstra, etc. Australian mobile data packages can get expensive and vary by carrier (up to AU$300 for 180Gb of data!) so it pays to shop around and not use this as a last-minute option i.e. get a friend in Australia to buy it when it’s on sale and have it ready for when you arrive.
Hope you found this useful! Safe travels mate.
Any and all advice, guides, and reviews are unbiased and based on my personal experience. If you buy through affiliate links, I may earn commissions, which helps support my website. This does not have an impact on posts or my opinion of any reviewed products. If you find this post helpful and want to say thanks, please buy me a coffee or take a look at my book on Amazon. It keeps this page ad-free. Thank you!