The current situation is that with the increasing number of home smart devices, and they are all gathered in the 2.4GWIFI band, the network congestion is becoming more and more obvious. It is recommended that buyers choose a projector support both 2.4GWIFI module and 5GWIFI module.
It is important that WIFI projectors support both 2.4G and 5G bands. Unlike “3G” and “4G” in the mobile phone world, the “2.4G” and “5G” numbers in Wi-Fi network are radio frequency bands. 2.4G is short for the 2.4GHz band, and 5G is short for the 5GHz band (roughly 5.1 to 5.8 GHz). In a nutshell, the 2.4GHz band gives you longer range, whereas the 5GHz band offers more channels that are less likely to be polluted with interference.