Wi‑Fi 5 explained
Wi‑Fi 5 is the friendly name for 802.11ac. It mainly improved 5 GHz performance and is still found in many older routers, laptops, phones and smart TVs.
It can be perfectly fine if your broadband package is modest, the home is not too busy and your devices are reasonably close to the router. It starts to show its age when several people are streaming, gaming, downloading and working at once, or when you upgrade to faster full fibre.
Wi‑Fi 6 and Wi‑Fi 6E explained
Wi‑Fi 6, also called 802.11ax, focuses heavily on efficiency. It is designed to handle more devices at the same time, which can make the connection feel more stable even when the headline speed does not look dramatically different.
Wi‑Fi 6E extends Wi‑Fi 6 into the 6 GHz band. This can reduce congestion and improve speeds on compatible devices, but 6 GHz signals usually do not travel as far through walls as lower bands.
Wi‑Fi 7 explained
Wi‑Fi 7 is based on 802.11be. Its headline features include wider 320 MHz channels, 4K-QAM and Multi-Link Operation. In practical terms, it is designed to move more data, reduce delay and make better use of multiple Wi‑Fi bands when both router and device support it.
Wi‑Fi 7 is most useful when you have a fast full fibre package, lots of devices, a modern mesh system, heavy downloads, cloud gaming, local file transfers or newer phones and laptops that can actually use the newer standard.
Speed, range and latency: what actually changes?
Speed
Newer Wi‑Fi can deliver higher wireless speeds, but only when the device, router, signal quality and broadband package all support it.
Range
Newer does not automatically mean longer range. Router placement, walls, mesh layout and the band used can matter more.
Latency
Wi‑Fi 6 and Wi‑Fi 7 can help busy networks, but Ethernet is still the most reliable choice for low-latency gaming and work calls.
Capacity
Busy homes benefit most from Wi‑Fi 6 or newer because the router can manage many devices more efficiently.
6 GHz
Wi‑Fi 6E and Wi‑Fi 7 can use 6 GHz on compatible hardware. It can be cleaner and faster, but range is usually shorter.
Device support
Your phone, laptop, TV or console must support the newer version. Old devices will still connect using older capabilities.
Which Wi‑Fi version do you need?
Stick with Wi‑Fi 5 if...
Your broadband is under 100 Mbps, coverage is already good, there are only a few active devices and you are not seeing dropouts.
Choose Wi‑Fi 6 if...
You have a busy household, multiple streams, games consoles, smart devices or regular work video calls.
Consider Wi‑Fi 6E if...
You have compatible devices and want a cleaner short-range connection near the router or mesh nodes.
Choose Wi‑Fi 7 if...
You have full fibre, modern devices, a large mesh network, heavy downloads, creators in the home or a need for the best future-proofing.
Before replacing your router, test this first
- Run a speed test beside the router. This shows what the connection can deliver at short range.
- Run another test in the problem room. A big drop suggests Wi‑Fi coverage, not necessarily broadband speed.
- Use Ethernet where possible. A wired test shows whether the broadband line itself is performing well.
- Check device support. A Wi‑Fi 7 router will not make an old Wi‑Fi 5 laptop behave like a Wi‑Fi 7 device.
- Look at placement before spending money. Moving the router into the open can sometimes beat a router upgrade.
- Test at busy times. Wi‑Fi problems often appear at night when streaming, gaming and downloads overlap.
When a new router will not fix the problem
A router upgrade will not fix a slow broadband package, a provider fault, poor full-fibre availability, damaged wiring or a congested mobile signal. It also will not help if the problem device is too old, too far away or using a weak internal Wi‑Fi antenna.
For the best diagnosis, test three ways: over Ethernet, close to the router on Wi‑Fi, and in the room where the problem happens. The difference between those results usually tells you where to focus.