Zigbee vs Z-Wave

[erktrek]

I run 2 hubs with both ZB/ZW - one on each floor of my house. In practice both ZW/ZB hubs don't seem to interfere with each other.

Here's a post on the matter:

Multiple hubs, multiple Z-Wave meshes, they will get affected?

Hello I have 5 hubs, 3 HE, 1 ST and 1 Iris, I have 2 separate zigbee meshes with HE, 2 wifi routers, at least 2.4GHz has channels so it's ok, but Z-Wave doesn't have channels, so having minimum 2 meshes, it will have interference? Per this picture, I want both hubs with separate Z-Wave meshes, they are both with separate zigbee meshes already. [20190329_204721] Thanks