ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor (EB-STATE6-01)
Quick take
The ecobee Smart Thermostat Premium adds smart comfort (with a bundled SmartSensor), plus a built-in air quality monitor that can alert you and nudge you toward filter changes. It’s best for households that want room-aware temperature control and broader smart home integration, but you should confirm HVAC compatibility and be ready for wiring and power considerations for a smooth DIY install.
Pros and cons
Pros
- SmartSensor support helps reduce hot and cold spots by adjusting based on the rooms that matter.
- Built-in air quality monitoring with alerts and maintenance reminders (furnace air filter timing).
- Works with major voice ecosystems (Alexa, Google Assistant, and Siri with an Apple home hub).
- Supports common 24VAC systems (furnaces, AC, heat pumps, boilers, PTACs, and fan coil units), with installation support via included Power Extender Kit.
Cons
- Installation depends on system wiring and power setup, and some homes may need additional work to ensure enough power.
- Feature behavior can be more complex for certain heat pump setups that involve AUX heat staging and outdoor temperature logic.
- Some automation features require extra conditions, such as a Smart Security subscription for specific door/window-open pausing.
What buyers think
Buyer-review evidence is overall positive for day-to-day usability and feature depth, with recurring themes around smart control, app management, and setup guidance. Many buyers describe the interface and remote/app control as straightforward once installed, and some highlight the added value of room comfort improvements via sensing. Support experiences also appear favorable, with buyers reporting that troubleshooting help was available when installation or wiring questions came up.
There is limited but notable review evidence of complexity around specialty installations (especially where heat pump AUX heat logic is important), along with occasional concerns related to power or additional wiring needs. Overall, the strongest pattern is that the thermostat performs well when it is correctly installed and matched to the buyer’s HVAC setup.
What this thermostat is designed to do
This is a programmable Wi-Fi thermostat built for comfort optimization and energy-aware control. The big differentiator is how it responds to your home, not just the thermostat location. It combines:
- SmartSensor comfort management to help address temperature differences across rooms.
- Built-in air quality monitoring so you can get alerts and actionable reminders like air filter changes.
- Home automation features, including occupancy and alerts designed to pause heating or cooling when a door or window has been left open (with requirements for access to that feature).
SmartSensor comfort: why it matters
Temperature accuracy at the thermostat location is not always the same as temperature comfort where you actually live. The included SmartSensor is meant to prompt adjustments that better match the rooms that matter, helping reduce the “my house feels different than the thermostat says” problem. If your current system uses a single thermostat location and you often notice uneven comfort across rooms, this is one of the main reasons buyers consider moving to ecobee.
Air quality monitoring and filter reminders
Instead of focusing only on temperature, the built-in air quality monitor can alert you to poor air quality, provide tips on improving it, and remind you when it is time to change your furnace air filter. If you want your HVAC system to support not just comfort but also indoor air awareness, this added layer can be a practical quality-of-life upgrade.
Compatibility and installation: the part that can make or break the experience
The ecobee Smart Thermostat Premium is intended to work with most 24VAC systems including furnaces, AC (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units with 3 fan speeds. The package also includes a Power Extender Kit (PEK) intended to support installs in C-wire-less homes.
That said, several buyers mention that installation can involve wiring steps that are not always “grab and go” depending on where your furnace equipment is located and what your system needs for stable operation. If you are considering this for a challenging layout (for example, difficult attic access) or a specialty HVAC configuration, plan for extra time or consider hiring an installer.
Automation features you may care about
Door/window open alerts
The thermostat includes logic intended to alert you if a door or window is left open and can automatically pause heating or cooling. Access to that automation feature requires a Smart Security subscription.
Smart home integrations and voice control
You can control and monitor the thermostat through the app and pair it with smart assistants. The device supports:
- Alexa
- Google Assistant
- Siri, with an Apple home hub required to enable Siri
- Apple HomeKit and SmartThings compatibility
Pros and cons, summarized
Buy this ecobee if room-aware comfort and air quality monitoring matter to you, and your HVAC setup is likely compatible with a 24VAC thermostat. It is especially appealing for buyers who want less “single location” temperature guesswork and more actionable alerts around indoor air.
Skip or research more if you have a heat pump with AUX heat staging that you rely on for very specific outdoor-temperature crossover behavior, or if you know your wiring and power situation will be complicated. In those cases, double-check compatibility and be prepared to budget time for installation details.
Price and availability
Pricing varies by retailer and bundle, but this model is positioned as a premium smart thermostat. If you are comparing it to budget options, the decision usually comes down to whether you will actually use the SmartSensor comfort layer and the air quality monitoring and alerts.
How it compares to simpler programmable thermostats
- Simple programmable thermostats are usually easier to install and cheaper, but they do not offer room sensing or built-in air quality monitoring, and they typically lack the deeper smart home controls.
- Feature-heavy smart thermostats like this one tend to deliver better comfort in uneven homes, but you should expect more setup considerations, especially around system power and HVAC type.
If your priority is consistent comfort across rooms and indoor air awareness, this category upgrade can be worth it. If your priority is only scheduling and basic temperature control, you may not need this level of functionality.
Final verdict
The ecobee Smart Thermostat Premium is a compelling choice for buyers who want a premium smart thermostat experience that goes beyond temperature scheduling. With SmartSensor-based comfort support, built-in air quality monitoring, and broad smart home compatibility, it can be a strong upgrade for homes where comfort varies by room. Just make sure your HVAC wiring and power needs are manageable, and verify fit for your specific system type if you have advanced heat pump operation requirements.
FAQs
Is the ecobee Smart Thermostat Premium compatible with my HVAC system?
It is intended for most 24VAC systems, including furnaces, AC, heat pumps (with 2H/2C plus 2 stage AUX), boilers, PTACs, and fan coil units. If you are unsure, use the model’s compatibility checker before buying, and verify power and wiring needs for your setup.
Does it include the SmartSensor?
Yes. The Smart Thermostat Premium package includes SmartSensor, which is designed to help reduce hot and cold spots by prompting temperature adjustments based on the rooms being monitored.
What does the air quality monitor do?
The thermostat includes a built-in air quality monitor that can alert you when air quality is poor, provide improvement tips, and remind you when it is time to change your furnace air filter.
Can I install it in a C-wire-less home?
It includes a Power Extender Kit (PEK) aimed at simplifying installs where a C wire is not present, but your actual wiring situation still matters. If you are unsure, confirm your system requirements before starting or consider a pro install.
Does Siri work with this thermostat?
Siri support requires an Apple home hub to enable it. If you use Apple Home, you can still benefit from the thermostat’s app and smart home features.
Does it pause heating or cooling when a door or window is open?
It can alert you and pause heating or cooling when a door or window has been left open for 5 minutes, but access to that behavior requires Smart Security subscription.
Specifications
| Product Title | ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant, Black |
|---|---|
| Category | Tools & Home Improvement > Building Supplies > HVAC > Thermostats & Accessories > Thermostats > Programmable |
| Brand | ecobee |
| Manufacturer | ecobee |
| Model Name | Smart Thermostat Premium |
| Model Number | EB-STATE6-01 |
| Color | Black |
| Item Weight | 0.61 Kilograms |
| Product Dimensions | 2.9"D x 4.09"W x 4.09"H |
| Controller Type | Amazon Alexa, Android, Apple HomeKit, Google Assistant, iOS |
| Additional Features | Amazon Alexa, Siri, Wired Smart Thermostat |
| Specific Uses For Product | Furnace |
| Temperature Control Type | Heating, Cooling |
| Connectivity Technology | Bluetooth |
| Power Source | Battery Powered |
| Voltage | 24 Volts |
| Display Type | LCD |
| Control Type | Button Control |
| Control Method | App |
| Connectivity Protocol | Wi-Fi |
| Mounting Type | Wall Mount |
| Backlight | Yes |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Smart Home Compatibility | Smart Home Compatible |
| Item Dimensions D x W x H | 2.9"D x 4.09"W x 4.09"H |
| Material Type | Metal |
| Finish Types | Matte |
Available variants
Style
- Smart Thermostat Premium
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