There is a popular saying that the real innovations that 5G will enable haven't even been dreamed up yet.
Before we jumped from 3G to 4G, we relied on WiFi hotspots and our homes to download anything substantial to our phones. In public, the internet connection wasn't good for much - other than checking email and making social media posts.
Once 4G arrived we were able to stream videos while on the go, and play games in augmented reality.
What we'll be doing with 5G will be every bit a giant leap forward.