6 GHz Wi-Fi: fast, clean, and short-ranged

A brand new band with no neighbors on it. The catch is simple: the higher the frequency, the sooner your walls stop it.

Published · 2 min read

In this guide
  1. Why it's so good, and so short
  2. Where it helps at home
  3. Where it disappoints
  4. How to use it well
  5. Map it before you count on it

Wi-Fi 6E and Wi-Fi 7 added a third band, at 6 GHz. It's the cleanest spectrum home Wi-Fi has ever had: wide channels, no old devices, and, for now, few neighbors. It's also the shortest-ranged band in your home.

Why it's so good, and so short

  • It's empty. Only 6E and Wi-Fi 7 devices can use it, so there's no queue behind legacy gear, and in most buildings your neighbors aren't there yet.
  • The channels are wide, which is where the headline speeds come from.
  • Higher frequencies fade faster through air and, especially, through walls. Every material costs more at 6 GHz than at 5 GHz, which already costs more than 2.4 GHz.

So the practical range is: excellent in the same room, good next door, and often not worth using two walls away.

Where it helps at home

  • Same-room, high-bandwidth work: a desktop next to the router, a headset, moving large files.
  • A crowded building, where 2.4 and 5 GHz are busy every evening and the 6 GHz band is still quiet. See neighbors' Wi-Fi interference.
  • Mesh backhaul. Some systems use 6 GHz for the link between nodes, which works well when the nodes are in sight of each other, and poorly through masonry. A cable is still better. See wired backhaul.

Where it disappoints

  • The far bedroom. If 5 GHz already struggles there, 6 GHz won't reach it.
  • Older devices. Only recent phones and laptops support it; everything else keeps using the other bands.
  • Availability. How much of the band you can use, and at what power, depends on your country's rules. Your router will only offer what's allowed where you are.

How to use it well

Leave the network combined and let devices pick, unless you're testing. Put the router where you work, keep 5 GHz as the workhorse for the rest of the home, and 2.4 GHz for the far corners and smart devices. See 2.4 GHz vs 5 GHz by room and will Wi-Fi 7 fix dead zones.

Map it before you count on it

If you're considering a 6E or Wi-Fi 7 upgrade for coverage rather than speed, measure first. WiFi Heatmap shows where your current signal falls off; the 6 GHz band will fall off sooner, not later. It's a great band for the room you're in, and not a substitute for a node in the room you're not.