Emporia Vue 3 vs Shelly EM Gen3

The Shelly EM Gen3 for local control, load switching and a 3 year warranty. The Emporia Vue 3 is the better choice when you want circuit-by-circuit data for a whole North American split-phase panel and do not mind a cloud-only device.

Scale. The Emporia Vue 3 monitors 19 circuits with 18 included clamps, while the Shelly EM Gen3 monitors 2 circuits with one included clamp, but runs locally and can switch a load through its relay.

For some homes. The Shelly EM Gen3 suits a single-phase supply or a couple of appliances with local control. It cannot replace an Emporia Vue 3 for per-breaker monitoring or on split-phase and three-phase panels.

The Shelly EM Gen3, which offers a local API, MQTT and a web interface and stores 10 days of data on the device. The Emporia Vue 3 has no local interface and needs an internet connection to work.

North American homeowners and solar owners who want second-by-second, circuit-level data for the whole panel with unlimited history and no subscription.

Home Assistant users and single-phase homes that want local metering of one or two loads, power factor readings and a relay that can cut the load it measures.