Dual-band is better than just having a 5GHz-only router because a dual-band router provides both 2.4GHz and 5GHz frequencies, giving you the best of both worlds: long-range/wide coverage (2.4GHz) and faster speeds/less interference (5GHz). You don't have to choose; a dual-band router automatically offers both, letting devices connect to the best band for their needs, making it ideal for most households.
With a dual-band router, you can set it to transmit at both frequencies concurrently. In this case, you typically have two networks (SSIDs) that appear in your network list, with identical names except for a "5G" or "2.4G" at the end. You can then choose to connect each individual device to either network.
Yes, 5GHz Wi-Fi can go through walls, but its range and ability to penetrate walls are generally less effective compared to 2.4GHz Wi-Fi. 5GHz signals have a shorter wavelength, which makes them more susceptible to attenuation and interference from physical barriers like walls and floors.
For a seamless gaming experience 5Ghz is recommended. While 2.4GHz will be sufficient for most games, 5GHz is suited to handle the greater bandwidth demands on multiplayer player high graphics online games. When a game starts lagging or glitching, it's time to switch to 5GHz.
For gaming, home theater, and home office applications that depend on a lot of voice and video calls, using the 5 GHz and 6 GHz bands is recommended. 2.4 GHz is the “best effort” network for Wi-Fi, ideal for sending small amounts of data over longer distances.
Range or Speed
If you want better range, use 2.4 GHz. If you need higher performance or speed, use the 5GHz band. The 5GHz band, which is the newer of the two, has the potential to cut through network clutter and interference to maximize network performance.
10 tips to help improve your wireless network
The Ping Test
As you can see, there is a significant difference in the delay variation between 2.4 Ghz and 5 Ghz. Putting it bluntly, what the 'stddev' or standard deviation shows in the numbers under the graph is that 5 Ghz's connection is over 10 times more consistent than 2.4 Ghz, in my testing environment.
Disadvantages of 5G
A good internet speed depends on usage, but generally, 25-50 Mbps is good for basic streaming/browsing in small households, while 100+ Mbps is better for multiple users, 4K streaming, gaming, and remote work, with 500+ Mbps supporting heavy usage like large file downloads and many simultaneous devices without lag. For single users doing light tasks, even under 25 Mbps can suffice, but more speed ensures smoother experiences for multiple people and demanding applications.
Simply put, the signals that mid-band 5G networks rely on struggle to penetrate the materials in their path when the user is indoors. Lower frequency signals do not face this problem to the same extent, but their utility has become more limited over time.
Windows 10:
This won't get creepy. Researchers at Carnegie Mellon University can map human bodies through walls using WiFi signals. The technology tracks key points on the body for detection, extending previous research into using WiFi signals to locate humans.
It might—if your old router was bottlenecking performance.
Dual-band routers offer faster speeds on 5 GHz, but your internet plan and device compatibility also matter.
Combined SSID:
Offers a 2.4 GHz and 5 GHz Wi-Fi network, broadcasts both on the same network name. The router and device will automatically choose what band to use based on connection and capabilities of the device.
By offering two bands, Dual-Band devices can help avoid congestion and interference that often plague single-band networks, leading to a more reliable and faster Wi-Fi experience.
5G wireless radiation linked to altered brain waves during sleep. A recent study published in NeuroImage found that individuals with specific gene variants who are exposed to 5G frequencies experienced changes in their brain wave activity — measured via an EEG — during sleep.
If you're on the move and need high-speed internet for your phone or tablet, 5G is an excellent option. It provides enough bandwidth for 4K streaming and competitive gaming. But at home, a fiber broadband plan is still the smarter choice.
6G Speed and Performance
While the exact specifications are still being defined, experts predict that 6G networks could deliver speeds up to 1 Tbps – that's 50 times faster than 5G. This incredible speed will enable new use cases and applications that we can barely imagine today.
The 5 GHz band transfers plenty of data promptly but has a shorter range. The narrow wavelength bounces off walls, making for a great indoor connection. Let's say you are using your tablet on 5 GHz as you walk room-to-room in your house; on 2.4 GHz, your connection might drop as you go.
Speed. The 2.4 GHz frequency supports lower max speeds—often capped around 100–150 Mbps, depending on interference. However, 5 GHz supports faster throughput, often exceeding 500 Mbps under Wi-Fi 5 or Wi-Fi 6.
If too many devices are connected to your 5G home network, or if several bandwidth-intensive activities (like streaming 4K video or downloading large files) are occurring simultaneously, the strain on your router can result in slower speeds. 5G home internet signals are limited by range.
To get 100 Mbps internet, start by ensuring your plan supports it, then optimize your setup with an Ethernet cable for maximum speed, place your router centrally, use the 5GHz Wi-Fi band for close devices, and check your network hardware (router/PC) for gigabit Ethernet ports. If experiencing slow speeds, restart equipment, disconnect unused devices, update drivers, clear your browser cache, and ensure your computer's network settings aren't capped at 100 Mbps.
How often should I reboot my router? Rather than wait until your router starts causing problems, a monthly or bi-monthly router reboot will help maintain its optimal performance. Some routers allow for reboot scheduling at convenient times, maybe in the middle of the night.