3G vs 4G: What’s the difference?
Now that 3G has shut down in Australia, it's time to look at how 4G and 5G compare.
Key takeaways
- Telstra, Optus and Vodafone have all turned off their 3G network. The final shutdown date was 28 October 2024.
- This guide provides historical context to show how network advancements increase speeds, like 4G being twice as fast as 3G, or even faster.
- 5G networks are continuing to expand across Australia. For example, Telstra's 5G coverage now reaches 91% of the population.
What is the difference between 3G and 4G?
3G and 4G both refer to different generations of wireless mobile network technology, with 3G being the third generation and 4G being the fourth.
Each new generation allows for increased bandwidth and faster data speeds in order to support various applications.
As the successor to 3G, the 4G network is capable of delivering significantly faster speeds within its coverage areas.
3G vs 4G speeds
4G speeds are way faster than what you had on 3G.
While 3G download speeds topped at around 20Mbps, 4G can hit over 100Mbps, depending on your network.
Just keep in mind, your everyday speeds on the mobile network won't always hit the max potential as speeds on a mobile network can be affected by such factors as:
- How close you are to a mobile tower
- Congestion on the mobile network
- Weather conditions
What about 5G?
5G is the next generation of mobile networks after 4G. Once again there is another step up in speed and reliability.
Or to put it another way, the higher the generation of mobile network technology, the faster the speed, the capacity of the network to handle traffic and the latency (the time data takes to travel across the network).
5G has been rapidly expanding throughout the country, with Telstra at 91% coverage and Optus at 80.5%.
Vodafone doesn't exactly give its percentage reach but says it has 5G rolled out across 3,400 sites in Australia.
We have a dedicated guide comparing the 4G vs 5G networks if you're after more details.
Finder survey: How many Aussies have already adopted 5G?
| Response | WA | VIC | SA | QLD | NSW |
|---|---|---|---|---|---|
| No | 45.95% | 48.97% | 51.85% | 46.82% | 47.35% |
| Yes | 39.64% | 41.1% | 34.57% | 44.09% | 42.06% |
| I don't know | 14.41% | 9.59% | 13.58% | 8.64% | 10.58% |
| I don't have a mobile phone/mobile phone plan | 0.34% | 0.45% |
Source: Finder survey by Pure Profile of 1110 Australians, December 2023
Data for ACT, NT, TAS not shown due to insufficient sample size. Some other states may also be excluded for this reason.
Data for ACT, NT, TAS not shown due to insufficient sample size. Some other states may also be excluded for this reason.
Do I need to upgrade my phone?
You should've gotten plenty of notices from Telstra, Optus, and Vodafone to upgrade your handset before the 3G shutdown.
The reason is simple. If you don't have a 4G or 5G compatible phone, you won't be able to use it, especially in an emergency when you need to dial Triple Zero.
Sources
More resources on Finder
Ask a question
6 Responses
More guides on Finder
-
Best 5G mobile plans in Australia
Most providers now offer 5G plans, so finding a great deal is easier than ever. Check out our top 6 picks to get started.
-
Best prepaid mobile plans September 2026
Each month, we pick the best prepaid plans for 9 different categories to help you find the right mobile plan.
-
Best SIM-only plans in Australia September 2026
We've done the hard work so you don't have to go searching far and wide for the best SIM-only plan.
-
Best mobile plans in Australia September 2026
Our experts have crunched the numbers to help you find the best mobile phone plan in Australia.
-
Moose Mobile plans
Moose Mobile's plans offer excellent value for money on the Vodafone network, starting from $23 per month.
-
Best mobile plans for students September 2026
From budget-conscious to international students, these mobile plans offer something for every type of student.
-
Best mobile plans for seniors September 2026
It's easy to avoid overpaying for your mobile plan, even without a seniors discount. We've rounded up our top 6 picks and shared tips on how to save.
-
Best mobile plans for kids September 2026
Getting a phone for kids or teens is an important decision to make, so here are the things to consider when choosing a mobile plan for them.
-
Top 10 mobile phone providers in Australia
Check out which mobile phone providers Finder users are loving this month and the top plans they're choosing!
-
TPG Mobile Plans
TPG mobile plans run on the Vodafone 4G network and offer great bang for your buck. Read our TPG mobile review here.
Can a 4G SIM be used in 3G mobile phone?
Hi Margaret,
Thank you for your enquiry.
Whilst you can use a 4G SIM card on a 3G mobile phone, you’ll only be able to get and use 3G signal on the device. You won’t be able to enjoy the benefits and speed that is offered by 4G.
Kind regards,
Jason
will a 3g sim card work on my 2g phone
Hi Brian,
Thank you for contacting finder. We are a comparison website and general information service, we’re more than happy to offer general advice.
Yes, they work. A SIM is just a digital identification chip for cell phones and has nothing to do with 3G or 2G. The phone should have appropriate communication radios (chips) to receive and send data at 3G/2G speeds.
I hope this helps.
Cheers,
Danielle
The 2G network is being switched off. Is this going to happen with 3G too?
Hi May!
Thanks for getting back!
Not an impossible outcome. Technology is constantly evolving and some countries offer 5G now and we can expect this to move forward as time goes.
Therefore, this may push the network to adapt and take-off its old network configuration.
We may recommend that you stay-tuned of future network announcements and talk to your provider as necessary.
Hope this helps.
Cheers,
Jonathan