https://www.edn.com/electronics-blogCES 2019 provided more evidence of companies making decisions on Internet of Things connectivity.

Bluetooth and Wi-Fi seem to be prevailing. If IoT connectivity were to be compared to roulette (CES is held in Las Vegas, after all), betting on Bluetooth or Wi-Fi is like betting on black or red. With most possible outcomes being one or the other, your odds of winning are pretty good..s/5g-waves/4461504/IoT-connectivity-Wi-Fi-and-Bluetooth-are-winning