For a heavily mixed zigbee/zwave environment, it would be nice to have a single AIO repeater product that extends the range of both zigbee and z-wave.
The Lowe's Iris plugs did back in the day. I have around 30-40 of them (can't remember count) but I don't have the Zwave part linked to Hubitat since I have heard they don't play nice with others.
As indicated by @jonathanm8, the only product I’m aware of are the Iris v2 outlets (made by Centralite). However, depending on the firmware version of the outlet, they can be terrible for zwave meshes.
I use Tuya USB zigbee repeaters, and Aeotec Range Extender zwave repeaters.
In 2026 - are there additional combined extenders to consider? I have some items in my garage (motion and contact sensors) that seem to lose connections.
I believe the Lowe's were one or the other depending on which band your paired it. I have a couple
The Iris 3210-L (aka their gen 2 outlet) could be paired with z-wave and zigbee simultaneously. IIRC older firmware versions made for crap z-wave repeaters, newer firmwares were better.