The best SIM-only plans in Australia allow you to get a data bank that works for you, at a price that you're comfortable paying – without additional perks that you may or may not make use of. With so many mobile plans available from dozens of providers across three phone networks, it can be difficult to find the right plan for yourself – or dedicate the time required to do so – but we're here to help.
We've taken the time to review the best prepaid plans and best postpaid plans, as well as the best Vodafone mobile plans and Optus plans – so it's safe to say we know how to seperate the wheat from the chaff. With so many plans on offer, we've handpicked seven options that you should consider, covering several different phone users with different budgets and data requirements. Of course, you'll have to bring your own handset to pair with these plans – so you can read up on the best phones and best cheap phones if you need a new device.
Usually, smaller telcos provide more affordable SIM-only options, so if you're shopping on a budget, we'd guide you towards them. These smaller telcos, known as mobile virtual network providers (MVNOs) keep prices down by using the networks of Telstra, Optus and Vodafone, and selling that connectivity to you. The best small telcos currently are Lebara, Yomojo and Felix, but TPG is taking the cake right now with 50% off deals across its plans.
Of course, if you're after the best network coverage and data inclusions, Telstra, Optus and Vodafone are worth considering, though the former is considerably more expensive.
Let’s dive in. Here are seven of the best SIM plans in Australia.
Noteworthy SIM-only deals for March 2025
We’ll get into the most noteworthy plans below, but before we get stuck in, we just wanted to bring to your attention some of the best deals currently on offer.
- Tangerine | Get 50% off the first four months
- TPG | 50% off the first six months
- Felix Mobile | Get 50% off p/m your first three months
- Dodo | 50% off for first three months
- Lebara | 35GB bonus data for the first three recharges + 300 bonus std mins
- More | $5p/m off for 12 mths then 10% off ongoing for CommBank customers
- Yomojo | 50% off the first three months
Best SIM-only plans: our picks
Best SIM-only plan for most people
Best cheap SIM-only plan
Best high-data plan
Best 5G SIM-only plan
Best SIM-only plan on the Telstra network
Best SIM-only plan on the Optus network
Best SIM-only plan on the Vodafone network
- Compare Australian smartphone prices on the latest models at Getprice
How we judge the best SIM-only phone plan
Finding the best SIM-only phone plan is a bit tricky, but our experts consider the following aspects:
Data-to-cost ratio: The two most important things when it comes to analysing a phone plan are the price and the data inclusions. In our analysis we tend to weigh telcos that offer quite a reasonable amount of data per dollar favourably, while those that offer costs and data allowances that aren’t particularly competitive don’t typically make the shortlist. This being said, as you’ll read below, we immediately consider other points when looking at plans across the Australian market.
Perks and inclusions: Often when the data inclusion is fairly low and the price high, there’ll usually be some ulterior reason: such as with Telstra, Optus and Vodafone. These ‘big three’ telcos include unlimited data structures with their postpaid deals, along with other perks like streaming service inclusions and access to the full 5G network. Data banking is also commonly offered by smaller telcos and, depending on the plan, you’ll often come across bundled-in international minutes. Once upon a time, included national calls and SMS would have also been a priority consideration, but these are typically a back of mind thing now, as unlimited calls and SMS within Australia are now very much a standard with phone plans.
Deals and special offers: Everybody loves a bargain and we’re no different. Worthwhile discounts and special offers on their monthly or renewable plans typically rank quite highly in our wrap-ups. A popular discount structure you’ll see is set out over a monthly time period, say three or six months. These discounts are great, because you don’t pay the full price and they give you an opportunity to try a telco out without committing too much money.
Network access: While 5G is currently being rolled out by Telstra, Optus and Vodafone, the incoming standard of mobile connectivity is not currently available on all phone plans. While 5G isn’t a must-have for many Australians (its primary benefit is an improvement in data speeds, with 4G still being fairly competent for on-the-go use) we do bring it into consideration if your plan has access to 5G signals.
Should I go SIM-only?
There is a flexibility benefit to going SIM-only with your phone plan. Going SIM-only allows you to save money on a month-to-month basis,cuts off your ties to a lengthy contract and may be your option of choice if you want to continue to use your current phone. Give it some thought if you want to consider a cheaper MVNO that doesn’t offer phones on a plan, too.
Should I use an eSIM?
Using an eSIM cuts out the need to remove and reinsert the SIM card tray in your smartphone, effectively minimising what is often a headache when getting a new phone. eSIMs are basically virtual SIM cards that operate within your phone – no card required – but your phone will need the functionality and your plan will need to offer eSIM access as an inclusion. Check with your telco if you can get an eSIM and check your phone model to see if it’s compatible with an eSIM.
What is an MVNO?
A mobile virtual network operator (MVNO) is a telco that does not own the network which it uses to provide mobile services to its customers. Many SIM-only providers are MVNOs, meaning they resell access to the Telstra, Optus or Vodafone networks – usually at much lower prices than the big three will offer themselves.
For this reason, you’ll find that we frequently recommend MVNOs for some of the best SIM-only plans in Australia. Some of the major MVNO brands are Amaysim (Optus), Belong (Telstra), Circles.Life (Optus) and Everyday Mobile (Telstra).
What SIM card size do I need?
There are three sizes of SIM card that you can get for your phone, and the one you need will depend on your handset. It’s been a while since the traditional, so-called standard SIM (15 x 25mm) has genuinely been the staple in new phones.
Instead, any phone you’ve bought within the last five or so years is much more likely to require a micro (12 x 15mm) or nano (8.8 x 12.3mm) SIM – the iPhone 5 was Apple’s first mobile with a nano SIM, while Samsung began using the smallest size in its Galaxy S6.
Before you purchase your new SIM, double-check the manufacturer’s website to see what size you require. And if you’re simply not sure, most networks now send out a triple SIM, so you'll get one of each size.
How much data do I need?
Because most SIM-only plans come on a lock-in contract, and you can change your plan up more easily than you could on a lengthier 24- or 36-month contract, it’s less crucial to get your data requirements perfect from the start. But if you’re considering a contract of any kind, or just put a personal pride on getting things right the first time, we’ll help you find the data sweet spot.
Firstly, check your phone to see how much data you’ve been using to date, and whether you have the tendency to use more than your current allowance every month, or less. This should provide a good estimate of how much a new plan needs, but if you’re still unsure, here's some general data-use guidance:
0-5GB: Tiny amounts of data on SIM-only plans could be a blessing or a curse. If you’re aiming for a SIM to put in a rarely used phone that will scarcely be away from Wi-Fi then this amount makes some sense. But if you end up with a plan that only has 5GB or less because your head’s turned by the incredible price, you could ultimately end up paying more if you continually go over your allowance.
5-15GB: If your phone is almost always connected to a Wi-Fi network at home, and you’re a fairly light data user during the times you’re out and about, then a data plan between 5-15GB could work for you. If you just use Google Maps, occasionally stream music and check social media, plans in this bracket will give you enough freedom to safely scroll while you’re away from Wi-Fi.
15-50GB: A report published in December 2023 by the Australian Competition and Consumer Commission (ACCC) found that the average mobile user in Australia uses 15.9GB of data a month, so phone plans in this bracket will be best for most people. If you like to stream music or videos and download podcasts when you’re on 4G or 5G, or you use map apps on a daily basis and generally have a data-intensive lifestyle, this is likely to be the cap you should be looking at. Keeping under 50GB can keep your costs affordable too.
50-100GB: You’re going to have to be a real data-drainer for more than 50GB a month to be necessary. This amount will be helpful if you download apps or other large files on the go, stream in HD, frequently use your phone as a hotspot or work from somewhere that doesn’t have Wi-Fi.
100GB-unlimited: 100GB+ plans are for the truly heavy users; let’s be frank – if you’re using this much per month, you’ve either got a serious YouTube/TikTok addiction, or you’re tethering to your phone as your only internet connection. Unlimited data plans aren’t particularly common, with the small MVNO Felix being the only telco to offer a truly unlimited mobile data plan. Felix caps its speeds at 20Mbps, which is still good for streaming video and music. But for most people, unlimited data simply isn’t necessary.
The SIM-only plans on this page are checked regularly, so make sure you visit often if you want to get the most up-to-date information on the plans that are currently available.
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