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Smart Energy Monitoring System Comparison - April 2026
| 1 Best Choice  9.8Exceptional | 2 Best Value  9.7Exceptional | 3  9.4Excellent | 4  9.3Excellent |
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ModelSmart Home Energy Monitor Supports Home Assistant, Real-Time Accurate Energy Consumption Tracking, Electricity Usage Monitor with 16x60A Circuit Sensor, 36-Month History, Solar Metering, ETL Certified | Model Kasa Matter Smart Plug w/ Energy Monitoring, Compact Design, 15A/1800W Max, Super Easy Setup, Works with Apple Home, Alexa & Google Home, UL Certified, 2.4G Wi-Fi Only, White, KP125M (4-Pack) | Model Emporia Energy Monitoring Smart Plug, WiFi Smart Outlet Plug Works with Alexa and Google Home - 15a WiFi Outlet with Timer, Mobile App, Home Energy Monitor, Scheduling - 2.4ghz WiFi Only (4 Pack) | Model Smart Home Energy Monitor with 16 50A Circuit Level Sensors, Measure Power Usage in Real-Time, History with App (16 50A Circuit Level Sensors) - Compatible with Home Assistant |
BrandRefoss | Brand Kasa Smart | Brand EMPORIA | Brand Fusion Energy |
Reviews | Reviews | Reviews  | Reviews - |
Tech Specs | |||
product dimensions 4.5 x 3.48 x 1.1 inches | product dimensions 2.62 x 1.57 x 1.5 inches 12.63 ounces | product dimensions 1.97 x 3.31 x 1.5 inches 10.55 ounces | product dimensions 3.1 x 1.2 x 4.18 inches |
Review- | Review | Review - | Review - |
Available On | Available On  | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1Refoss17% OffSmart Home Energy Monitor Supports Home Assistant, Real-Time Accurate Energy Consumption Tracking, Electricity Usage Monitor with 16x60A Circuit Sensor, 36-Month History, Solar Metering, ETL Certified
Why we love it
Seamless integration with Home Assistant.
Monitors up to 18 circuits simultaneously.
Accurate real-time energy tracking.
Main highlights- NEW Feature Release (25.07.30): 1.Merge channels; 2.Export hourly-level energy data; 3.Access the new energy statistics page; 4.Invert CT readings directly via Device Settings → Circuit Factor (no physical flipping needed!). Update to the latest Refoss app and firmware to enable all features.
- Zero Feed In Automation: The EM16 is a smart meter designed for solar owners, linking with Home Assistant to automate your zero feed-in strategy. Ideal for homes with solar panels, it detects solar surplus (like midday sun peaks) and automatically powers high-energy appliances - such as activating your washing machine, EV charger, or water heater - to consume excess solar energy onsite. This prevents low-value electricity feed-ins to the grid, maximizing your solar investment returns and slashing utility bills.
- Smart Consumption Alerts: You can set personalized usage targets for each circuit. Once the system detects an unusual energy spike—such as a sudden increase in power consumption by an appliance that exceeds the normal range—you will immediately receive a detailed alert notification. This allows you to take prompt action, such as checking if there is a malfunction with the device or adjusting your usage habits, thereby optimizing appliance usage across different times of the day.
- Refoss Smart Home Energy Monitor is ETL Certified and supports 2 main circuit sensors (up to 200A each) and 16 branch circuit sensors (up to 60A each) with an easy-to-install clamp-on design. Compatible with single-phase 2-wire systems, single-split phase 3-wire systems, and 3-phase 4-wire Wye systems with earthed (TN or TT) neutral (no Delta). Easily installs in most home circuit panels and includes a 2-year warranty. Attention: Take care when handling the included current transformers to avoid damage.
- Comprehensive Energy Data: The power monitor provides 98% accuracy and stores up to 3 years of detailed electricity usage data. With clear minute, hour, day, month, and year consumption and cost charts, you can easily understand your energy use. Ideal for homeowners adjusting appliance usage to save on bills or businesses tracking long-term energy savings and emission reductions. Historical data can also be exported for further analysis, making every electricity expense transparent.
- Compatible with Home Assistant: EM16 Wi-Fi Energy Monitor is now compatible with Home Assistant! Simply update the firmware in the Refoss app to seamlessly integrate your energy management system with your smart home platform, enabling centralized control and automation. Additionally, all data is stored locally, ensuring your privacy is protected without cloud processing. API is not supported.
- 24/7 Energy Monitoring: With the Refoss app, you can track your home’s energy usage anytime, anywhere. Easily monitor the power, current, voltage, and power factor of major appliances like air conditioners, stoves, and water heaters. Quickly identify which devices are running efficiently and which ones might be wasting electricity. According to statistics, many users save an average of 10%-20% on their energy bills by optimizing appliance usage.
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9.7
2Kasa Smart43% Off
Kasa Matter Smart Plug w/ Energy Monitoring, Compact Design, 15A/1800W Max, Super Easy Setup, Works with Apple Home, Alexa & Google Home, UL Certified, 2.4G Wi-Fi Only, White, KP125M (4-Pack)
Why we love it
Compatible with major smart home platforms.
Compact and fireproof design.
Smooth LAN control without internet.
Main highlights- 【Matter: Smooth LAN Control】All Matter-certified devices in your local area network (LAN) will work smoothly even when your home internet goes offline. Matter allows effective communication directly between devices, without the need for a specific 'forwarding' device. For example, a Matter smart switch or sensor can turn on/off a Matter bulb directly without being connected to a cloud service, or other specific action. Once configured, communication and control between Matter devices can be achieved directly on the local network.
- 【Matter-Compatible Smart Home Integration】Works with Matter-certified platforms such as Apple Home, Amazon Alexa, Google Home, and Samsung SmartThings. Users can manage compatible devices across supported apps within the Matter ecosystem.
- 【Energy Monitoring】Tracks energy usage over time to help you understand consumption patterns and make informed decisions about how your devices are used.
- 【Compact & Flame Retardant Design】Avoid blocking additional outlets with its compact design, and plug in your WiFi smart plug with confidence thanks to its UL certified flame retardant design and 2-year limited warranty.
- 【App & Voice Control】Control your WiFi smart plug from anywhere, anytime via the free Kasa App or just give voice commands to Siri, Amazon Alexa, Google Assistant or Samsung SmartThings. Your favorite smart assistant enables you to have a truly hands-free experience.
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9.4
3EMPORIA
Emporia Energy Monitoring Smart Plug, WiFi Smart Outlet Plug Works with Alexa and Google Home - 15a WiFi Outlet with Timer, Mobile App, Home Energy Monitor, Scheduling - 2.4ghz WiFi Only (4 Pack)
Main highlights- Smart Scheduling for Maximum Control: With built in on/off scheduling capability, use your smart plugs to automatically switch on and off appliances and devices. Want freshly brewed coffee at 7am? Just schedule it with an Emporia plug!
- Requires 2.4GHz Wifi Connection to control your devices remotely from your phone with an internet connection. 5.0 GHz Wifi networks are not supported.
- Remote Control. Anytime, Anywhere. Control your home remotely using the Emporia App on your phone. Leave the lights on? Forget to turn off an appliance? Check the real-time status and toggle it on or off anytime, anywhere!
- Monitor Your Home Energy Like a Pro: Emporia smart plugs let you stay on top of energy used by your devices and appliances. Eliminate wasteful stand-by power, save on electricity, and extend product life.
- Control Your Appliances and Devices: Control lights, fans, lamps, humidifiers, and any other appliances or electronics that plug into 120V outlets with a 10A Maximum Continuous Load (15A Max Peak Load for up to 1hr/day)
Our ranking system
At bestchoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
