Shelly 1 Mini Gen4 vs Shelly 2PM Gen3

The Shelly 1 Mini Gen4 wins this pairing on cost, connectivity and flexibility: it is cheaper, adds Zigbee to its Wi-Fi and Matter support, confirms dry and wet contacts, and works as a Zigbee router. The Shelly 2PM Gen3 pulls ahead when you need two channels, a higher current rating or energy monitoring.

Size and channels. The Shelly 1 Mini Gen4 is a tiny single-channel relay rated 8A that fits in crowded boxes, while the Shelly 2PM Gen3 is a larger two-channel relay rated 16A with per-channel energy monitoring and a cover mode for shutters.

The Shelly 2PM Gen3 is rated 16A per channel, so it drives heavier loads than the 8A Shelly 1 Mini Gen4. Choose the Mini for lighter single circuits and the 2PM Gen3 when the load or the second channel demands more current.

The Shelly 1 Mini Gen4 supports Wi-Fi, Bluetooth, Zigbee and Matter and can act as a Zigbee router. The Shelly 2PM Gen3 supports Wi-Fi, Bluetooth and Matter but has no Zigbee radio.

Anyone with a crowded or small switch box who wants a single lighter circuit made smart with protocol flexibility (Wi-Fi or Zigbee, plus Matter) and dry and wet contacts. Its 8A rating suits lights, garage doors and low-power loads.

Buyers who need two circuits, a 16A current rating, or per-channel energy monitoring, and who want to automate a roller shutter, blind or gate through its cover mode over Wi-Fi and Matter.