Hi Bill,
You’d be able to pair 30-ish router devices directly (can’t find exact figures), then expand it by adding either router or end devices.
The maximum usable number of zigbee devices is about 200, but in a home in 2026 I’d cut that number in half.
https://support.homey.app/hc/en-us/articles/10374465562652-Creating-a-stable-Zigbee-network-with-Homey-Pro
You’d really tune the 2.4GHz wifi and zigbee channels;
Mind close neighbours: when you’re surrounded by apartments, any of their 2.4GHz wifi signals can potentially interfere with your zigbee signal, and nothing you can do when their 2.4GHz wifi is on auto-channel.
Zigbee usually needs to be configured well, it’s pure luck when it works just like that.
This and other very useful info can be found in here:
