Smlight SLZB-06 vs Smlight SLZB-06p7U

They are effectively tied, since both are network-connected Zigbee 3.0 coordinators with Thread border router and Bluetooth proxy, PoE placement and the same antenna. The Smlight SLZB-06p7U adds a newer CC2652P7 chip and USB-over-Ethernet, while the Smlight SLZB-06 has a longer track record. Pick by which of those you value.

The chip and one feature. The Smlight SLZB-06p7U uses the newer, higher-power Texas Instruments CC2652P7 and supports USB-over-Ethernet, while the Smlight SLZB-06 uses the earlier CC2652P and does not list USB-over-Ethernet. Otherwise their connectivity and radio specs match.

Yes. Both the Smlight SLZB-06 and the Smlight SLZB-06p7U connect over USB, Ethernet, Wi-Fi and PoE, so you can place either centrally on your network, away from the server, for better Zigbee range and stability.

No. Both are Zigbee 3.0 coordinators (also acting as Zigbee routers, Thread border routers and Bluetooth proxies) with no Z-Wave. For Z-Wave you would add a separate controller.

Buy the Smlight SLZB-06 if you want the more established, widely reviewed network Zigbee coordinator with Ethernet and PoE placement and a Bluetooth proxy, and the newer chip is not a priority.

Buy the Smlight SLZB-06p7U if you want the newer, higher-power CC2652P7 chip and USB-over-Ethernet so it can act as a remote radio, in the same network-connected form factor. Note it is sold mainly through Smlight directly.