Re: VHS and Betamax
Zware and zigbee are short-range technologies like bluetooth and wifi - they're suitable for home use with a local gateway. These other options work at much longer range - 10km is mentioned for sigfox. This makes them suitable for small remote sensors like water level (flood warning), etc.
Certainly, home sensors could use short-range technologies and probably will. But there's a large class of devices that want low power, low data rate and long distance to the gateway.
Biting the hand that feeds IT
