The 2.4 GHz band has been around for a long time and is supported by most Wi-Fi devices. It is known for its longer range, meaning it can cover larger areas and penetrate walls better than 5 GHz. This makes it ideal for devices spread throughout a house or office, especially in buildings with many walls or obstacles.
However, because it’s widely used, it tends to face more interference. Many household devices, such as cordless phones, baby monitors, and microwaves, also operate on the 2.4 GHz band, which can cause network congestion. Despite this, the 2.4 GHz band remains suitable for general web browsing, emails, and Internet of Things (IoT) devices.