Broadly speaking, there are two types of connections within WiFi networks: those that work in the 2.4 GHz band and those that broadcast in the 5 GHz band . In general, all the most modern and mid-range Android mobiles at least tend to be dual, as well as a large part of the tablets and other devices , such as Android TVs . And there are big differences between the two bands: 5G is not always better.
Having a router nearby with a WiFi access point is so common that we don’t usually take into account everything that is involved in connecting to these devices that manage wireless connectivity. We connect at home to our WiFi network , to our work network, we look for a public connection when we leave our usual environments … Security and privacy must be well present before accepting a connection. And choosing one band or another should also be the result of evaluations.
5G WiFi is faster, 2.4G more stable
Same router with both frequency bands active
The two bands offer network coverage, allow Internet access if the router has a modem connected to a provider , enable local communication between devices connected to the intranet and, as a general rule, do not offer huge differences in terms of to data exchange. Grosso modo, of course.
Broadly speaking, the main characteristics of both frequency bands are the following:
- 2.4GHz band . They offer lower bandwidth and slower download and upload speeds. It is the most compatible, since all devices that include WiFi connectivity can connect to it. In addition, it is the most stable, offers greater coverage and has fewer difficulties when it comes to going through walls.
- 5GHz band . Higher bandwidth, more speed, and less compatibility, especially in the most recent revisions of Wi-Fi standards. This web has a harder time getting through walls; so it offers less range of coverage.
After checking the key characteristics of the two frequency bands, it is possible to glimpse which are the most appropriate uses for one or the other. The 2.4 GHz form the base, all mobile phones and other devices are available to connect to this frequency band. By contrast, 5 GHz is always optional: device compatibility is less despite the best features it offers .
When configuring the router/access point, it is best to keep both bands working: if old devices that are only compatible with 2.4 GHz are combined within the same SSID ( Band Steering ), they will not work . Once the two bands are operating simultaneously, and have a secure password (you must deactivate the WPS button and choose the highest WPA encryption standard ), you will have to connect to one or the other WiFi depending on the type of device .
When to connect to a 2.4 GHz Wi-Fi network
Obviously, you will have to connect to these networks if your Android device only offers connectivity on this frequency. This will happen if it is very old, it is a mobile phone or tablet of an accessible range or you have a smart watch (these accessories do not usually include 5 GHz WiFi connectivity).
If when doing a WiFi search 2.4 and 5 GHz networks appear, it means that your device is dual. Choose the first network in these cases:
- If you are going to move and need the best connection stability.
- If you move away from the router and there are walls in between.
- If you want to always have the best coverage possible, even outside your home (very useful for staying connected in the garden).
- If you encounter problems using the 5 GHz network (micro-cuts in the connection, huge drops in speed, extremely high latency…).
- If you connect to the Internet and you do not have a contracted speed of more than 100 Mb. With the 2.4 GHz band you will ensure stability and coverage without losing download or upload capabilities (the maximum is around 150/200 Mbps) .
2.4 GHz WiFi networks offer lower capacities in exchange for expanding coverage and being more stable . As we have seen, it is not only a matter of compatibility: there will be times when it will be more advisable to connect to this frequency band, even with a 5 GHz compatible mobile.
When to connect to a 5GHz WiFi network
- If you are near the router and/or the walls of your house do not excessively dampen the wireless signal.
- If you want to guarantee the maximum connection speeds, also the highest possible bandwidth.
- If you are going to perform a demanding task on the volume of data; such as 4K video streaming or online gaming (generally, you shouldn’t have a problem doing these tasks on the 2.4GHz band either).
- If your intranet moves large volumes of data. For example, if you use wireless NAS servers .
- If all your home devices are dual band and you want to take advantage of the maximum capabilities of the router at all times. In this case, please disconnect the 2.4GHz network or set up Band Steering.
Choosing one or the other frequency band can make a significant difference in the user experience: as is often the case, the newest and most powerful does not have to be the best . We recommend that you analyze the coverage of your home by placing the router in the best possible place and then assess which rooms each band satisfactorily reaches. Following the previous points you will know how to make the most of your WiFi.
