Should I use 2.4 GHz or 5 GHz?

Use 5 GHz for anything within reasonable distance of the router, because it is faster and less congested. Keep 2.4 GHz for devices far away, outdoors, or behind several walls, and for smart-home gadgets that only support it.

It is excellent close to the router: very wide channels and almost no congestion today. Its range is the shortest of the three and it needs a WiFi 6E or WiFi 7 router and client, so it complements 5 GHz rather than replacing it.

Why is my 5 GHz slower than 2.4 GHz in one room?

Because higher frequencies attenuate faster through walls. At the edge of coverage the 2.4 GHz link can hold a stronger, more reliable connection and therefore deliver more usable throughput.

Should I split the bands into separate network names?

Separate names give you manual control, which helps when a device stubbornly clings to the wrong band. A single name with band steering is simpler and works well on modern routers. Either approach is valid.

Which band is best for gaming?

Ethernet first. If wireless is the only option, 6 GHz near the router is the most stable, then 5 GHz. Avoid 2.4 GHz for competitive play because interference causes retransmissions and latency spikes.

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2.4 GHz vs 5 GHz vs 6 GHz WiFi

The three WiFi bands trade speed against reach. Lower frequencies travel further and through more walls; higher frequencies carry far more data but fade quickly. Choosing well is mostly a question of how far each device sits from the router.

Short answer

Use 6 GHz for high-throughput devices in the same room as the router, 5 GHz as the everyday default, and 2.4 GHz for distant or low-bandwidth devices. Range falls and speed rises as you go up the bands.

Band comparison at a glance

2.4 GHz, 5 GHz and 6 GHz WiFi compared
Attribute	2.4 GHz	5 GHz	6 GHz
Typical real throughput	20–100 Mbps	200–900 Mbps	400–1500 Mbps
Range indoors	Longest	Moderate	Shortest
Wall penetration	Best	Moderate	Weakest
Channel width available	20–40 MHz	20–160 MHz	Up to 320 MHz
Congestion	Heavy — shared with many devices	Moderate	Very low today
Non-WiFi interference	Microwaves, cordless phones, some Bluetooth	Some radar coexistence rules	Minimal
Latency stability	Weakest	Good	Best
Device support	Universal	Near universal	WiFi 6E and WiFi 7 devices only
Best for	Distant, low-bandwidth devices	Everyday laptops, phones, TVs	High-throughput devices near the router

Throughput figures are typical observed ranges on modern hardware, not guarantees. Your router, your client adapter and your internet plan all cap the result independently.

Speed versus range, explained

Higher-frequency signals carry more data because wider channels are available, but they lose energy faster and are absorbed more readily by walls, floors, water and metal. That is the entire trade-off: 6 GHz can be several times faster than 2.4 GHz in the same room and noticeably worse two rooms away.

Congestion matters just as much as raw capability. The 2.4 GHz band has only three non-overlapping channels and is shared with neighbours' networks and household appliances, so in an apartment block it often underperforms its theoretical numbers by a wide margin.

Which band for which device

Recommended band per scenario
If this is you	Use
Laptop or phone in the same room as the router	6 GHz if supported, otherwise 5 GHz
4K streaming on a TV one room away	5 GHz
Smart plugs, sensors and older IoT devices	2.4 GHz
Garden, garage or far bedroom	2.4 GHz
Competitive gaming on wireless	6 GHz near the router — Ethernet if possible
Dense apartment block with many networks	6 GHz, then 5 GHz