Quick verdict
The Yellow was the dream hardware for serious HA users. Purpose-built board, built-in Zigbee and Thread radios, and a Compute Module slot. It's discontinued now, so you're hunting the secondary market. If you find one at a fair price, it's still a great piece of kit.
Standout: Discontinued but still sought-after purpose-built Home Assistant hardware with built-in Zigbee and Thread radios.
Last checked: 2026-03-21