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25 devices · 8 brands

Energy Monitors: Compare Specifications

Energy monitors measure electricity use at a device, circuit or whole-home level. Measurement scope determines which questions the readings can answer.

Choose two or three devices to compare their recorded specifications, compatibility and missing information.

Compare energy monitors →

Start with your question

Model-specific questions

Explore Energy Monitors

25 of 25 devices · Add 2–3 devices to compare their specifications.

Check compatibility with your setup

Each list separates models that work directly from models that need a hub or bridge, using the recorded specification for each device.

Energy Monitors That Work With Matter (6) →Energy Monitors That Work With Apple Home (HomeKit) (5) →Energy Monitors That Work With Google Home (14) →Energy Monitors That Work With Amazon Alexa (14) →Energy Monitors That Work With Samsung SmartThings (14) →Energy Monitors That Work With Home Assistant (25) →Zigbee Energy Monitors (9) →

Before you choose

What Should You Check Before Buying?

Use these energy monitors requirements to narrow your shortlist, then verify each requirement for the exact model.

  1. Choose device-level, circuit-level or whole-home measurement.
  2. Verify phase, sensor and panel compatibility with the manufacturer.
  3. Confirm installation requirements before work near electrical equipment.
  4. Check sample intervals, export and how tariff calculations are handled.
Check networks, controllers and integration requirements →Interpret specification differences and missing data →

Inside this catalog

How do energy monitors differ?

Counts below are calculated from 25 catalog devices. They describe the recorded data, not the whole market or independent product tests.

Selected specifications: recorded values and gaps
SpecificationRecorded values · device countExplicit valuesUnresolved
Three PhaseMeteringYes: 12No: 10Sold separately: 123 of 252 of 25
Split PhaseMeteringNo: 11Yes: 617 of 258 of 25
Real Time UpdatesData Monitoring1 s: 41 min: 3Yes: 21 other distinct values in the catalog10 of 2515 of 25

Unknown, unspecified and conflicting values are unresolved. Explicit “No” counts as recorded. Units and model variants are not normalized. Check the product notes before treating a value as a fit for your setup.

How these catalog statistics are calculated →

Catalog-level statistics

Energy Monitors: recorded feature coverage

Based on 25 devices in this directory. Feature percentages use explicit Yes/No answers only; unresolved answers are shown separately. These figures are not market share.

Integration and protocol support

Home Assistant · Integrations100%25 Yes / 25 known; 0 unresolved
Google Home · Integrations67%14 Yes / 21 known; 4 unresolved
Alexa · Integrations56%14 Yes / 25 known; 0 unresolved
Thread · Connectivity0%0 Yes / 25 known; 0 unresolved

Features with the most recorded Yes answers

Home Assistant · Integrations100%25 Yes / 25 known; 0 unresolved
Automations · Features96%24 Yes / 25 known; 0 unresolved
Bidirectional Metering · Metering100%24 Yes / 24 known; 1 unresolved
Breaker Panel Install · Installation92%23 Yes / 25 known; 0 unresolved
Usage Alerts · Data Monitoring91%20 Yes / 22 known; 3 unresolved
Data Export · Data Monitoring90%19 Yes / 21 known; 4 unresolved
2.4 GHz Wi-Fi · Connectivity72%18 Yes / 25 known; 0 unresolved
Energy Cost Tracking · Data Monitoring90%18 Yes / 20 known; 5 unresolved
Load Management · Features64%16 Yes / 25 known; 0 unresolved
Local Api · Local Control60%15 Yes / 25 known; 0 unresolved
How these figures are calculated →

Which Brands Are In This Catalog?

Device counts refer to this category’s catalog entries, not the manufacturer’s entire range.

Shelly8 devicesZemismart3 devicesSonoff3 devicesRefoss3 devicesEmporia3 devicesNodOn2 devicesMeross2 devicesAeotec1 device

Plan the rest of your setup

These categories address related jobs. Check model-level compatibility before combining devices.

Plugs

Smart plugs switch power to a compatible connected load. Energy measurement, scheduling and remote control vary by model and integration.

Wall Outlets

Smart wall outlets integrate connected switching into an installed receptacle. Independently controlled sockets, energy monitoring and USB charging vary by model.

Hubs

Smart home hubs coordinate supported devices and automations. Radio support, software integrations and local processing are separate capabilities to verify.