As of now the Wifi we typically use is between 2.5 GHz to 5 GHz frequency and that is getting awefuly crowded. There are 3 channels in the 2.4 Ghz bandwidth and 13 in the 5 GHz bandwidth. Most of the devices that are made tends to use the 3 channels in the 2.4 Ghz bandwidth cause they are cheaper and more wide spread use makes it easier for pairing of the devices and the manufactures find them to the standard for making accessories that work with your phablets, tablets and other wifi devices.
With the introduction of 5G network around the corner we have an impending situation where the 5Ghz frequency is going to get infringed upon with the given jockeying of several bandwidths in that close proximity. The 2.4 Ghz bandwidth is has already maxed out and the 5G network is mostly intended for the Internet of Things. The 5G network is long coming but to many peoples surprise it is mainly intended for the smart devices cause of its low power consumption and able to keep track of cells it can connect. If you can imagine how an individual cell phone connects to a cell tower while you are driving on the highway, the cell phone is connected to 1 particular tower at one instant and connects to another when out of range at the same time maintains a continuous stream of information packets that lets you have a conversation while you are on the phone. Similarly when the 5G technology gets rolled out and by 2020 it is expected each person will be connected to at least 30 individual Internet of Things connected devices and for all of it work seamlessly, the 5G bandwidth has to be sliced and diced so they all are connected at one point of time or the other and have the memory to continue even when they are disconnected.
The IoT ship will have the Random Access Memory (RAM) to keep track of things, low power consumption device interface such as wearable, sensors etc