Z-wave is a mesh technology which means that devices are repeating the signal to the next device, not only that but also Zwave network will have many routed to send and receive data from the main hub to any devices, so in case of a failure in a device the network will still be able to communicate to other devices, this allows less failure in Zwave networks while providing a stable and large network coverage

Z-wave uses a dedicated RF frequency, typical Zwave EU is using 868 MHz, which makes signal travel more and penetrates walls and barriers in a more efficient way.

The lower band of frequency also has zero negative effect on health, making Zwave the chosen technology for homes and offices.

Security is one of the crucial points when it comes to wireless technology, Z-Wave was build using this in mind, as devices communicate with each other using AES security.

Currently Z-Wave Plus is using 265 AES encryption technology, this is the same technology the online banks are using and many military systems are using, making Z-Wave the most secured systems nowadays.

You can't have a true wireless system if you still need to connect power cables to your devices or changing batteries every few weeks.

Z-Wave was designed from the core to require minimum power, Z-Wave devices communicate with each other using specific techniques that requires minimal power, this allows Z-Wave sensors to use small batteries that last for two years or even more.