6 Best Honeywell Smart Thermostats of 2026

This multi-room maestro redefines whole-home comfort with its dual-sensor intelligence and adaptive presence detection. The included Smart Room Sensor delivers up to 200 feet of wireless range, letting you target temperature control where it matters most—like prioritizing the bedroom at night or the living room during gatherings. With ENERGY STAR certification and Auto Home/Away scheduling, it tackles energy waste head-on, especially for families tired of uneven heating or cooling across floors.

In real-world use, the T9 shines in homes with inconsistent temperatures between rooms. The sensor’s occupancy tracking adjusts HVAC output based on actual usage, not just motionless time-outs. It pairs seamlessly with the Resideo app for remote tweaks, and works with Alexa, Google Assistant, and Apple HomeKit for voice or automation control. While the C-wire requirement may deter some DIYers, the included power adapter simplifies installation for most forced-air and heat pump systems. That said, it struggles in homes with heating-only oil furnaces unless a C-wire is already present.

Compared to the budget-friendly T5, the T9 offers smarter zoning and better occupancy logic, making it ideal for larger homes or those with temperature-sensitive occupants. It doesn’t have the X8S’s doorbell integration, but it delivers more targeted comfort at a lower price point. For users who want precision room-by-room control without complexity, the T9 strikes a rare balance—more advanced than basic programmables, yet more intuitive than high-end smart hubs.

Meet the scheduler’s dream: a Matter-certified, no-nonsense thermostat built for users who want set-it-and-forget-it efficiency. The X2S stands out with its ultra-flexible programming—choose from 5-1-1, 5-2, 7-day, or even non-programmable modes—making it perfect for irregular routines or shared households. Its auto-away technology learns patterns over time, while ENERGY STAR certification ensures you’re not wasting power when no one’s home.

During testing, the X2S proved remarkably consistent in maintaining scheduled temps, even during swing seasons when HVAC cycling is frequent. The app allows remote adjustments, and Matter support means it integrates smoothly with Apple Home, Google Home, and Alexa without lag. It displays humidity levels and sends filter change reminders—small touches that add up to long-term system health. However, it lacks room sensors or occupancy tracking, so it can’t adapt to real-time room usage like the T9 or X8S.

When stacked against the T5, the X2S offers better scheduling granularity and Matter compatibility, giving it an edge in future-proofing. While the T5 uses geofencing for auto-away, the X2S relies on fixed schedules, which may feel rigid for highly mobile users. Still, for those who value routine over reactivity, this thermostat delivers bulletproof programming with smart home chops—a rare combo in its class.

This thermostat isn’t just smart—it’s stylishly smart. The vibrant color touchscreen lets you match the display to your wall color or mood, blending tech with interior design in a way few competitors do. Beyond aesthetics, it packs 7-day flexible scheduling, ENERGY STAR efficiency, and monthly energy reports that help you spot usage trends and trim waste. For users who hate staring at a dull black screen, this is a visual upgrade with substance.

In daily use, the touchscreen feels responsive and intuitive, especially for older users who prefer tap navigation over voice commands. The app enables remote control, and Alexa/Google integration works flawlessly for quick adjustments. It handles forced-air, heat pumps, and hydronic systems with ease, though electric baseboard heating is a hard no. While it lacks room sensors, its auto-away mode uses geofencing to detect when you leave, helping conserve energy without manual input.

Compared to the X7S, the RTH9585WF offers a larger, more customizable display but misses out on humidity monitoring and Matter certification. It’s less about air quality and more about user-friendly programming and visual flair. If you want a thermostat that’s easy on the eyes and efficient by design, this model beats basic monochrome units hands down—just don’t expect advanced IAQ features.

Step into the future of home control with the X8S—a command center that does far more than regulate temperature. Its standout feature? Live doorbell camera streaming from Ring or First Alert VX1 doorbells, so you can answer the front door without leaving the couch. Paired with a 5-inch customizable touchscreen, this thermostat becomes a smart home dashboard, blending climate control with security in a way no other Honeywell model matches.

Real-world testing reveals how powerful this integration is: receiving a doorbell alert, seeing the visitor, and speaking through the thermostat feels like sci-fi made real. The included room sensor extends up to 200 feet, allowing precise comfort targeting, while humidity and ventilation control (with compatible HVAC gear) elevates indoor air quality. It’s Matter-certified, ensuring smooth operation across Apple, Google, and Alexa ecosystems. The only caveat? The C-wire requirement and need for 2.4/5.0 GHz Wi-Fi may complicate setup for less tech-savvy users.

Against the T9, the X8S is clearly the more advanced sibling—offering doorbell view, larger screen, and IAQ features the T9 lacks. While pricier, it justifies the cost with unmatched functionality. For tech-forward homeowners who want one device to manage comfort, air quality, and entry, the X8S isn’t just the best Honeywell—it’s a smart home centerpiece that outshines even premium competitors.

Don’t let its simplicity fool you—the T5 is a stealthy energy saver that punches above its weight. With users reporting 8–16% savings on heating and cooling bills, this thermostat proves that smart scheduling and geofencing can deliver real financial impact. It’s designed for budget-conscious buyers who still want core smart features: remote control via app, Auto Home/Away mode, and ENERGY STAR efficiency—all without the clutter of advanced add-ons.

In practice, the T5 excels at adapting to your lifestyle. When you leave, geofencing triggers energy-saving mode; when you return, it preps your home to welcome you. The app provides monthly reports with personalized tips to cut usage further, making it educational as well as functional. It works with most forced-air and heat pump systems, but again, a C-wire or adapter is mandatory. It doesn’t include a room sensor or support humidity monitoring, so it’s best for smaller homes with consistent temperature needs.

Versus the X2S, the T5 offers geofencing where the X2S only has schedule-based auto-away—giving it a slight edge in responsiveness. It’s less customizable than the RTH9585WF but more adaptive than rigid programmers. For renters, small homeowners, or anyone upgrading from a manual thermostat, the T5 delivers essential smart features at an accessible entry point—proving you don’t need bells and whistles to save energy and stay comfortable.

This is air quality awareness reimagined—a thermostat that treats humidity monitoring as seriously as temperature control. The X7S helps maintain optimal indoor air quality (IAQ) by tracking moisture levels and prompting adjustments, which is crucial for allergy sufferers or homes in humid climates. Its 4.3-inch customizable display lets you match the look to your decor, while Matter certification ensures seamless operation across Apple, Google, and Alexa platforms.

In everyday use, the X7S impresses with its auto-away detection and smooth app integration. The First Alert app allows full remote control, and the thermostat adjusts settings based on occupancy, reducing waste when the house is empty. It supports complex HVAC setups, including 3-stage heat pumps, and includes a free C-wire adapter voucher—a thoughtful touch for older homes. However, unlike the X8S, it doesn’t include a room sensor, so you’ll need to buy one separately for multi-room comfort.

Compared to the X8S, the X7S trades doorbell streaming and a larger screen for a more focused IAQ experience at a lower cost. It’s not as flashy, but for users who prioritize healthy air over high-tech extras, it’s a smarter investment. If you want smart control with a health-first mindset, the X7S delivers precision comfort with a clean, modern interface—making it the best choice for wellness-focused homes.