This feels a lot like the battle of Blue-ray vs HD-dvd back in the early 2000s. While Blue-ray did win, it was less relevant to the industry than the original CD format. Things just moved online, flash storage and everyone got high-speed internet. If public WiFi becomes more ubiquitous, especially in densely populated areas, 4G vs 5G will be just as irrelevant as the battles for next CD format.