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*iSelect's partnered with CIMET Sales Pty Ltd (ABN 72 620 395 726) to help you compare a range of mobile SIM plan providers and mobile SIM only plans. iSelect and CIMET do not compare all providers or plans in the market. Not all plans are available at all times or in all areas. iSelect and CIMET earn a commission for every mobile SIM plan sold through the website. Learn more.

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Get the low-down on the jargon

Get the low-down on the jargon


Smartphones have advanced mobile operating systems that combine some of the features of a personal computer with a digital camera and video camera, Wi-Fi connectivity, GPS navigation, the ability to run apps and games, plus much more.


You might have the option of adding additional features to your mobile plan depending on the provider. Some will allow you to pay extra for features such as music streaming for an additional cost.

Operating systems

Your phone's operating system is the software that manages its basic functions and features. For many smartphones this includes Bluetooth connection, GPS navigation, and the ability to connect to Wi-Fi and mobile networks. The operating system also allows you to access and interact with applications on the device.

Get the low-down on the jargon

Plan type

When deciding on a plan, you can usually choose from prepaid or postpaid. Prepaid plans allow you to purchase credit upfront, while postpaid plans bill you for your previous month's usage.

Data allowance

You use data to access the Internet, download emails, stream music and videos, run some games and applications, and get directions. It's important to strike the right balance with your data allowance or you may end up paying more than you need to each month for unused data or excess data rates.


New songs from your favourite bands, binge-worthy TV shows, and cult movies. With a suitable data allowance, you may be able to enjoy a world of entertainment without clogging up your hard drive, thanks to apps that allow you to stream music and video from your smartphone. Keep in mind that some apps may require a separate subscription.

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Your mobile phone questions, answered:

What are the main types of mobile phone plans available in Australia?

Is there a 'best' or ‘cheapest’ mobile phone plan?

What features should I consider when comparing mobile phone plans?

What is a 5G phone plan?

What is the difference between a postpaid and prepaid mobile phone plan?

How much data do I need for my mobile phone plan?

Can I keep my phone number if I switch mobile phone plans?

Are there charges for cancelling my mobile phone plan?

What factors can affect my mobile coverage?

What is a SIM only plan?

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*iSelect's partnered with CIMET Sales Pty Ltd (ABN 72 620 395 726) to help you compare mobile SIM plan providers and mobile SIM only plans. Not all mobile SIM plan providers or mobile SIM plans in the market are compared. The availability of plans may change from time to time. Not all plans available from CIMET providers are compared. Due to commercial arrangements, area or availability, not all plans compared will be available to all customers. Click here to view CIMET's range of providers. iSelect and CIMET earn a commission for every mobile SIM plan sold through the website.