5G

5G has officially moved from being “the next big thing” to the standard for mobile connectivity and the backbone of how we stay connected in 2026. This guide breaks down what the technology actually does, how it’s evolved, and what the shift to Standalone networks means for your mobile plan.

What is 5G?

5G is the fifth generation of mobile network technology. Like the 3G and 4G networks that came before it, 5G sends data over radio waves between your device and a mobile tower. However, 5G is designed to handle far more data, much faster, and with significantly less “lag” than previous generations. In Australia, the major telcos have now rolled out 5G coverage to the vast majority of the population, making it the go-to choice for most new mobile and home internet plans.

How does 5G differ from previous networks?

While 4G was largely about making mobile web browsing and video streaming possible, 5G is built for a world where everything is connected.

The three main areas where 5G differs from older networks

  • Capacity: 5G can support up to a million devices per square kilometre. This means that even in a packed Optus Stadium or a crowded Sydney CBD, your connection shouldn’t drop out or crawl to a halt.
  • Latency: This is the delay between sending a request (like clicking a link) and the network responding. 5G reduces this to almost zero.
  • Spectrum: 5G uses higher frequency bands (including mmWave in some metro areas) that act like express lanes for data.

What is MIMO and what does it mean for 5G?

MIMO stands for Multiple Input, Multiple Output. Think of a standard 4G tower as a single-lane road. MIMO turns that road into a multi-lane highway. 5G uses “Massive MIMO,” which involves clusters of many small antennas instead of one large one.

For you, this means the network can send and receive more data at the same time without signals getting crossed. It’s the reason 5G stays stable even when thousands of people in your immediate area are all using their phones at once.

How much faster is 5G compared to 4G?

5G is typically 4 to 5 times faster than 4G, although it can reach speeds up to 10 times faster in ideal conditions. Of course, your actual speed depends on your signal strength, how many people are using the tower, and your telco’s “speed caps” on certain plans

Average speeds in 2026

  • 4G speeds: Typically range between 50–100 Mbps. While reliable for HD streaming, it can struggle with 4K video or large file downloads.
  • 5G speeds: Generally range from 250 Mbps to well over 1 Gbps (1,000 Mbps) on premium “uncapped” plans or when you’re in a mmWave hotspot.

Essentially, a 5G connection in 2026 could compete with a standard NBN fibre connection. This is why 5G home internet has become a top-tier alternative for households that want high-speed broadband without the need for a fixed-line installation.

What is 5G Standalone?

5G Standalone (SA) is the “pure” version of 5G and uses a brand-new, dedicated 5G core. It’s essentially the technology finally living up to its full potential without being held back by older 4G infrastructure. 

When 5G was first launched in Australia, it was Non-Standalone (NSA). This meant it still relied on the old 4G core network to “talk” to your phone.

The pros of 5G SA

  • Better battery life: Your phone no longer needs to stay connected to both a 4G and a 5G signal at the same time, which is much easier on your battery.
  • Reliability in crowds: SA allows for “Network Slicing,” where telcos can reserve a specific “slice” of the network for emergency services or critical apps so they never get slowed down by public traffic.
  • Ultra-low latency: This is a game-changer for cloud gaming and augmented reality, as the response time is almost instantaneous.
  • Better indoor coverage: 5G SA can often penetrate buildings more effectively than the older 5G versions.
  • Crystal-clear voice calls: With VoNR (Voice over New Radio), your voice calls stay on the 5G network. This means faster call connection times and higher-quality audio while you continue to browse at 5G speeds

What will happen to the older networks?

  • 3G: This network is now a part of Aussie history. Following the final shutdowns in late 2024, those radio frequencies (like the 850 MHz and 900 MHz bands) have been fully repurposed to strengthen 5G coverage, especially inside buildings and in regional areas.
  • 4G: Don’t worry, 4G isn’t going anywhere just yet. It remains a vital backup and provides coverage in more remote parts of the outback where 5G hasn’t reached. In many regional towns, 5G “Low Band” coverage has expanded significantly by 2026, but 4G remains the workhorse for long-distance connectivity across the Nullarbor and deep into the Red Centre.

If you are still using a very old, 4G-only device, you’ll notice that while it still works, it won’t be able to access the top speeds or the improved reliability that 5G SA offers.