Best SIM only plans in Australia

• You'll only pay $20 a month for 3 months to get 30GB of data monthly.
• This plan is one of the few with international call credits included.

Watch out for:

• Your data reverts to 15GB per month after 3 months.
• You'll need to pay upfront despite plans being postpaid.

We looked at mobile plans on Finder that cost under $20 per month. We then gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• Big data users can get 100GB got only $20 a month for the first 3 months.
• All of Southern Phone's mobile plans are 100% carbon neutral.
• You'll receive a $50 credit to make international calls.

Watch out for:

• The price reverts to $25 a months after 3 months but that's still a solid monthly cost for 100GB.

We compared mobile plans on Finder that cost under $30 per month. We gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• You get a whopping 100GB for just $20 a month for the first 3 months. The price reverts to $25 a month after but it's still really good value for money.
• It offers access to an Australia-based customer support team.
• You will have the added benefit of being with a carbon neutral provider at no extra cost.

Watch out for:

• You will get limited extra features on this plan, but if you want a good amount of data at a low cost and not much else, this won't be an issue.

We compared mobile plans on Finder that cost under $40 per month. We then gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• Network: Optus 4G network
• Calls + texts: Unlimited standard national calls and texts
• International inclusions: None
• Total cost over first 12 months: $99

• You can get a mobile plan for just $99 for the year alongside 60GB of data to be used as you want over 365 days.
• Catch offers a mobile app so you can manage your plan and track your data usage easily.

Watch out for:

• The 60GB data limit may only suit casual mobile phone users. It works out to be 5GB per month.
• After the first 365 days, the plan price will go up to $120

We compared mobile plans on Finder that cost under $150 with an expiry period of 12-months or 365-days. We then gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• Only pay $20 a month for the first 3 months and get unlimited data in return.
• Currently, felix is the only provider that comes close to offering a truly unlimited data mobile plan.
• It's 1 of only 6 carbon neutral mobile providers in Australia and plants a tree for every active subscription.

Watch out for:

• Your download speeds will be capped at 20Mbps through out. However, this is good enough for streaming Netflix in HD, browsing and more.

To select the best unlimited data SIM-only plan, we looked at mobile plans on Finder with no data limit. There is currently only 1 plan with no imposed limit on data so it defaulted to being the winner for this category.

• Access to unlimited data banking so no data goes to waste.
• There are no excess charges. If you end up burning through your data allowance for the month, your download speeds will be slowed to 1Mbps until your next recharge.
• You can add unlimited international calls to 30 countries for an extra $5 a month.

Watch out for:

• 4G and 5G download speeds are capped at 150Mbps but this is still fast enough for browsing, gaming, streaming and more.

We looked at mobile plans on Finder with over 40GB of monthly data. We then gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• You're essentially paying $0.88 per GB which stacks up well against our $1 per GB benchmark.
• You can rollover any unused data as long as you pay on time.
• There are no excess data charges. Your download speed will be capped at 1Mbps once you've run out of data for the month.

Watch out for:

• Its 4G and 5G download speeds are capped at 150Mps but that's fast enough for most online activities.

We looked at mobile plans on Finder with 5G for under $35 per month. We then gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• The amount of data you get in return for the monthly cost is fantastic - even when the price reverts to $25 a month after 3 months.
• It offers access to an Australia-based customer support team.
• You will have the added benefit of being with a carbon neutral provider at no extra cost.

Watch out for:

• Limited extra features are available on this plan. Make sure you're happy with the inclusions before signing up.

We looked at postpaid plans on Finder for under $35 per month. We awarded each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• Its 3-month discount gets you 50GB for just $15 a month. This works out to be a cool $0.30 per GB.
• Felix offers carbon neutral mobile plans and plants a tree for every active subscription.
• You can use its mobile app to manage your plan and track usage.

Watch out for:

• After the first 3 months, you'll have to pay $30 a month for 50GB.

We looked at prepaid plans on Finder for under $35 per month. We awarded each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• You'll get access to Telstra's wholesale 4G and 5G networks.
• Rollover any unused data as long as you pay on time.
• There are no excess data charges. Your download speed will be capped at 1Mbps once you've run out of data for the month.

Watch out for:

• Its 4G and 5G download speeds are capped at 150Mps but that's fast enough for most online activities.

We looked at mobile plans on Finder for under $35 per month that run on the Telstra network. We gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, international call inclusions, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• Get $300 worth of international call credit to keep in touch with friends and family overseas.
• You get double the data for the first 3 months.
• Bank up to 500GB of data for future use. This can be handy with Dodo's double data offer.

Watch out for:

• You will need to pay upfront even though the plans are postpaid.

We looked at mobile plans on Finder for under $35 per month that offer international call inclusions. We then gave each plan a value score by weighting different factors including cost per data over 12 months (including promotional offers), network coverage, data rollover and Wi-Fi calling. Our top pick was chosen based on the plan with the highest value score from a Finder partner.

• You can enjoy 32GB for $30 when you sign up to this plan.
• amaysim came out on top in Finder's 2023 Mobile Customer Satisfaction Awards based on a survey of 700+ Aussies.
• It offers a bunch of features such as unlimited data banking, international roaming packs and unlimited calls and texts to 28 countries.

Watch out for:

• 5G download speeds are capped at 100Mbps.
• A 28-day renewal means you'll end up paying 13 bills instead of 12 over the year.

We selected the best value plan for under $35 per month from the mobile provider that won the 2023 Finder Award for Best Rated Mobile Provider.