WiFi routers have frequency bands of 2.4GHz and 5GHz. These frequency bands are radio waves that carry the data and transmit data from one device to another one. The 2.4GHz frequency band is the most common one and also the standard band used in WiFi and other devices.
Most routers currently support either 2.4GHz only or both 2.4GHz and 5GHz bands for selection. Simply choose the most suitable 2.4GHz Wi-Fi when set up. This helps ensure a stable signal during the cleaning process.
The main differences and also the most important differences between the 2.4GHz band and the 5GHz band are the speed and the effective range.
The 2.4GHz band has a bigger effective range than 5GHz, which means the 2.4GHz band has a longer wavelength. A longer wavelength allows the 2.4GHz band to have a better performance when passing walls.
For the aspect of speed, 5GHz WiFi indeed has a faster speed than 2.4GHz WiFi because of the difference in wireless channels and bandwidth. With more non-overlapping channels and larger bandwidth, interference between data transmission will be fewer.
Back to the topic, why does RoboVac support only 2.4GHz WiFi connection?
Based on the analysis above, we will understand two critical aspects of 2.4GHz WiFi - a larger effective range but a slower speed.
When you control your RoboVac by using your smartphones, you are not sending the message to your RoboVac directly, instead, you are sending signals to eufy's cloud servers, and cloud servers will send the signals from your phone to your RoboVac through your WiFi. To ensure your command can be received by your RoboVac successfully, the connection between your RoboVac and the cloud servers must be stable enough, which means the effective range of this communication must be large enough to make sure your RoboVac won't disconnect from the internet. Speed in this kind of communication is less important. This communication requires only low bandwidth since the data size received by RoboVac is small.
Since the communication needs a large effective range and requires only low bandwidth, 2.4GHz WiFi would be the best choice to achieve this function.
The 2.4GHz WiFi routers are common and the large effective range ensures your RoboVac works properly when you control it anywhere, so the 2.4GHz WiFi connection between your routers and RoboVac would be the best choice for the connection and it is the most common solution for most smart home devices.
