When you encounter network lag or slow internet speed, don't you want to switch to a faster Wi-Fi signal? If you have a dual-band router at home, it can indeed provide two Wi-Fi signals for you, but switching back and forth can be a hassle. So, it would be great if your phone could connect to two Wi-Fi signals simutaneously, and automatically switch to the one with better network performance when the other is not so good.
Don't worry, It's already possible! In recent years, there have been some smartphones that support two simultaneous Wi-Fi connections. Users who have tried the dual Wi-Fi function have said that it's awesome and greatly improves their network experience.