From the consumer’s point of view, it does not matter which smart home wireless standard you choose, especially since ZigBee and Z-Wave are practically identical in terms of functionality and power consumption. The power consumption of the bridge is always minimal, but compatible devices must be in standby, e.g. to remotely comtrol by smartphone. The more devices you integrate, the more power is consumed.
The best way to decide which smart home devices you want to use is to see how many of them are available on one standard or the other. Fortunately, many brands of smart home network hubs are already compatible with two or more of these smart home standards.
Will there ever be a general smart home standard? That remains the big question of the future. Experts in the industry say that ZigBee and Z-Wave have had 10 years to form alliances and certify devices, with the result that thousands of compatible devices are on the market. It is thought that it will be another 10 years before we see a consolidation.