7 Best Energy Monitoring WiFi Smart Plugs 2026

The Tapo P210M redefines what an in-wall smart outlet can do—offering dual independent control, Matter certification, and real-time energy monitoring in a single flush-mounted unit. Unlike bulky plug-in adapters, this sleek in-wall solution saves space while doubling your connectivity, making it ideal for lamps, fans, or entertainment systems in tight spaces. It directly tackles the clutter and outlet blockage that plague most smart plug users, all while supporting local control without Wi-Fi—a rare and powerful feature for uninterrupted automation.

In real-world use, the P210M shines in living rooms and bedrooms where dual-device control is a game-changer. With a 15A/1800W max load, it confidently handles space heaters and high-draw electronics, while overcharge prevention protects phones and tablets left charging overnight. The energy monitoring feature delivers detailed usage reports through the Tapo app, helping users identify power-hungry devices. However, it requires neutral wire and 2.4GHz Wi-Fi, which may exclude older homes or dual-band-only networks—installation isn’t DIY-friendly for everyone.

Compared to plug-in models like the Tapo P115 or Kasa KP125M, the P210M stands out as a permanent, space-saving upgrade—perfect for new builds or renovations. It’s not the cheapest or easiest to install, but for those seeking a seamless, hardwired smart outlet with Matter support and dual control, it’s unmatched. While the Kasa KP125M offers better plug-and-play convenience, the P210M delivers superior integration and long-term aesthetics, making it the top pick for in-wall smart power.

The SONOFF S31 is a no-frills powerhouse that delivers essential smart plug functionality at a price that’s hard to beat—making it the go-to for budget-conscious users who still want energy monitoring and voice control. With real-time power, current, and voltage tracking, it gives users deep insight into device consumption, storing up to 100 days of usage data—a standout for such an affordable unit. Its 15A capacity and ETL certification ensure safety with high-load appliances, while IFTTT support opens the door to advanced automations beyond basic app or voice commands.

In daily use, the S31 excels in garages, home offices, and utility rooms where cost-effective monitoring matters most. The eWeLink app is straightforward, allowing remote on/off control, scheduling, and timer functions—ideal for turning off forgotten space heaters or automating holiday lights. However, the interface feels slightly dated compared to Tapo or Kasa, and there’s no local control without internet, meaning outages disrupt automation. While energy data is robust, the lack of Matter support limits future-proofing in evolving smart homes.

Against premium picks like the Kasa KP125M or Eve Energy, the S31 sacrifices polish and protocol flexibility for raw value. It’s not the sleekest or most integrated, but for someone needing one reliable, data-rich plug without overspending, it’s unbeatable. The Tapo P115 may offer better app design, but the S31’s extended data logging and IFTTT compatibility give it an edge for tinkerers and energy savers on a tight budget.

The Tapo P115 4-Pack is a value-packed bundle that combines energy bill estimation, smart charging, and auto-shutoff into a compact, reliable design—perfect for households looking to monitor and manage power across multiple rooms. Its standout feature is cost visualization, letting users see not just kWh usage but actual estimated energy costs, making it easier to justify turning off idle devices. With 15A/1800W capacity, it safely handles everything from coffee makers to air purifiers, and the mini size avoids blocking adjacent outlets—a common pain point with bulkier models.

During testing, the P115 proved consistent in tracking high-usage devices like refrigerators and space heaters, with data syncing quickly to the Tapo app for daily or weekly review. Scheduling works flawlessly, especially for running appliances during off-peak hours to save money. However, like most Tapo models, it runs on 2.4GHz Wi-Fi only, and lacks Matter support, limiting its compatibility in Thread-based or Apple Home-centric setups. While it offers voice control via Alexa and Google, it can’t match the seamless local automation of Matter-enabled rivals.

Compared to the Tapo P110M, the P115 trades Matter integration for a lower price and stronger energy cost insights. It’s not the most future-proof, but for users deeply embedded in Alexa or Google ecosystems, it delivers excellent bang for the buck. The Emporia 4-Pack offers similar monitoring, but the P115’s smart charging and auto-shutoff make it more proactive in protecting devices and reducing waste.

The Tapo P110M is a Matter-forward workhorse that brings future-proof smart home integration and precise energy tracking into a compact, four-pack bundle—ideal for users building a cross-platform, unified smart home. With Matter certification, it effortlessly pairs with Apple Home, Alexa, Google Home, and SmartThings, enabling seamless local control even when the internet drops. Its in-depth energy statistics and clear visual charts help users spot inefficiencies, while overcurrent protection automatically cuts power when devices draw too much—critical for aging appliances.

In practice, the P110M integrates smoothly into routines, especially in homes with mixed ecosystems. The Tapo app allows custom schedules and automations, and voice control is responsive with all major assistants. However, it still relies on 2.4GHz Wi-Fi, which may frustrate users with only 5GHz networks. While it supports local execution via Matter, firmware updates and some features still require cloud access—so it’s not fully decentralized. The lack of Thread radio also means it won’t boost mesh network stability like Thread-enabled devices.

When stacked against the Kasa KP125M, the P110M offers nearly identical features but at a slightly higher price—making it better for Matter-first adopters who value broad compatibility. The SONOFF S31 is cheaper but outdated in protocol support. For users who want Matter now without paying Apple-tier prices, the P110M delivers the most accessible gateway into a unified, secure, and efficient smart home.

The Kasa KP125M is the gold standard for Matter smart plugs, combining ultra-compact design, rock-solid energy monitoring, and flawless Matter integration into a package that just works—earning its title as the best overall. Its space-saving build avoids blocking adjacent outlets, a rare win in the smart plug world, while UL certification and flame-retardant materials ensure safety with high-load devices. Most impressively, it supports smooth LAN control via Matter, meaning automations run locally even during internet outages—no hub or cloud required.

In real-world testing, the KP125M excelled in multi-assistant homes, responding instantly to Siri, Alexa, and Google Assistant commands. The Kasa app provides clear energy usage trends over time, helping users reduce phantom loads from TVs and gaming consoles. Setup is truly plug-and-play, with Apple Home pairing in under a minute. However, like others, it’s 2.4GHz Wi-Fi only, and lacks Thread radio—so while it runs on Matter, it doesn’t enhance network resilience.

Compared to the Tapo P110M, the KP125M offers a tighter design and more polished app experience, justifying its higher cost. The Eve Energy plug wins on privacy, but requires a hub and iOS dominance. For most users, the KP125M strikes the perfect balance—offering best-in-class integration, reliability, and design without overcomplicating things. It’s the smart plug you install once and forget—just like it should be.

The Emporia 4-Pack is engineered for energy enthusiasts who want pro-level insights into household consumption—making it the best for energy insights without needing a whole-home monitor. With real-time tracking of power, voltage, and current, plus smart scheduling and remote control, it transforms ordinary outlets into data hubs for optimizing efficiency. The Emporia app presents consumption in easy-to-digest graphs, helping users eliminate phantom loads from idle electronics—potentially slashing bills over time.

In daily use, the Emporia plugs are reliable for automating coffee makers, humidifiers, and lamps, with precise scheduling ensuring devices run only when needed. The 10A continuous / 15A peak load rating handles most home appliances, though it’s slightly below the 15A standard of rivals. Like others, it requires 2.4GHz Wi-Fi, and lacks Matter support, limiting its role in advanced automations. Still, its focus on energy literacy sets it apart—this isn’t just a switch, it’s a teaching tool for smarter power use.

Compared to the Tapo P115, Emporia offers deeper data visualization but a less refined app and no Matter compatibility. The SONOFF S31 logs more historical data, but Emporia’s interface is more intuitive for beginners. For users serious about tracking and reducing energy waste, the Emporia pack delivers unmatched clarity—making it the top choice for eco-conscious households.

The Eve Energy is a privacy-first, Thread-enabled powerhouse designed for Apple-centric homes that demand local control, zero cloud dependency, and bulletproof security—earning its place as the best for privacy & Thread support. Built with Thread radio, it strengthens your home’s mesh network and enables ultra-fast, local-only automations without internet. Even more impressive: 100% local communication—no Eve cloud, no account, no tracking—making it the most private smart plug available.

In practice, it integrates seamlessly with Apple Home, responding instantly to Siri and automations based on presence or time. The energy monitoring is precise, with detailed graphs in the Eve app showing wattage and cost trends. However, it requires a hub (like HomePod or Echo) and iOS 16.4+ or Android 8.1+, locking out casual users. Setup is fast, but the lack of standalone app control means you can’t manage it without a hub—limiting flexibility.

Compared to the Kasa KP125M, the Eve Energy trades plug-and-play ease for superior privacy and network stability. The Tapo P110M is cheaper and easier to set up, but can’t match Eve’s decentralized architecture. For Apple users who value security, speed, and smart home resilience, the Eve Energy is worth the premium—it’s not just a smart plug, it’s a foundation for a truly private, future-ready home.