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What is 4G / 4G FAQs



Products Affected

This article covers some of the frequently asked questions in relation to the 4G product

  Handset 4G:




  • What’s the difference between 4G & 3G?

4G or LTE is a quicker method of delivering data to your handset than 3G, reducing the time it takes to download content.  Therefore it provides better audio and video quality when streaming, as well as a better gaming experience. 


  • What’s the difference between 4G & LTE?

4G is often referred to as LTE or Long Term Evolution. LTE is the 'fourth generation' of cellular technology and is therefore referred to as '4G'.  So, there’s no actual difference except for the term used.


  • How fast is 4G compared to the current 3G?

When you use a USB 4G mobile broadband device in 4G coverage areas, you can enjoy typical download speeds ranging from 2Mbps to 40Mbps – up to twice as fast as our fastest existing 3G device (the Ultimate USB). You can also experience typical upload speeds of 1Mbps to 10Mbps in 4G coverage areas, which is up to three times faster than our 3G Ultimate USB device today. These superfast speeds mean you'll be able to download songs faster and do more things simultaneously.


  • Are 3G devices compatible with Optus 4G and vice versa?

"3G only" devices are not compatible with Optus 4G.  However 4G handsets are compatible with the Optus 3G network.


  • Is my current handset compatible with 4G?

Your device must be 4G/LTE enabled and compatible with Optus' 4G frequency (it uses the 1800Mhz band) and be on a 4G plan. Here’s a list of just a few handsets that can be used on the 4G network; iPhone 5, Nokia Lumia 920, Samsung Galaxy S3 & S4, Samsung Galaxy Note II, HTC 8X (note this is not a complete list)


  • What bandwidth does Optus provide 4G on?

To provide 4G, Optus uses the 1800 mhz band. Whereas the Optus 3G Plus network is broadcast via the 900 & 2100 mhz bands.


  • Can I use my current 3G SIM with a 4G enabled handset or device?

Yes, but you will need to change any 3G plan you have to a 4G plan to use the 4G network.  If you don’t have a 4G plan any 4G device will not experience the full benefits of the 4G network.  Instead, your service will continue to operate using the 3G network.

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