After installing and testing the ecobee Smart Thermostat Premium in our smart home, it's easy to see why it consistently ranks among the best smart thermostats on the market. Rather than simply controlling your heating and cooling, ecobee has built a true smart home hub that combines climate control, indoor air quality monitoring, voice assistant functionality, home security features, music streaming, and smart home automation into one beautifully designed device.

Its large 4-inch color touchscreen, included Smart Sensor, built-in Air Quality Monitor, premium industrial design, and compatibility with nearly every major smart home platform make it one of the most complete smart thermostat packages you can buy today.

If you're looking for a thermostat that can help lower energy bills while becoming the centerpiece of your connected home, the ecobee Premium Smart Thermostat deserves to be at the top of your shopping list.

Why GearBrain Recommends the ecobee Smart Thermostat Premium

The smart thermostat market has become crowded, but very few products go beyond temperature control.

The ecobee Premium does.

It becomes part of your smart home by helping you:

• Reduce heating and cooling costs
• Monitor indoor air quality
• Extend comfort into rooms that are typically too hot or too cold
• Answer your front door using the thermostat
• Control your smart home using your voice
• Stream music
• Integrate with Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and numerous connected devices

It also includes the Smart Sensor and Air Quality Monitor, which add tremendous value over less expensive smart thermostats.

Key Features

Premium Design with Large 4-inch Color Touchscreen

One of the first things you'll notice is the beautiful industrial design.

The large 4-inch LCD touchscreen is bright, responsive, and easy to navigate.

During testing, we especially appreciated how useful the display became after pairing an ecobee Video Doorbell.

When someone rang the doorbell, the thermostat instantly displayed live video, allowing us to see who was at the front door without pulling out a smartphone.

Voice communication was slightly delayed but remained clear enough for everyday conversations.

The touchscreen was responsive throughout testing.

Includes Smart Sensor

Unlike many competing thermostats that charge extra for room sensors, the Premium includes one Smart Sensor.

This sensor can be placed up to 60 feet away from the thermostat, allowing ecobee to better balance temperatures throughout your home.

Rather than relying solely on the hallway thermostat, ecobee measures temperatures where your family actually spends time.

Even better:

• Connect up to 32 Smart Sensors
• Pair sensors with multiple Ecobee thermostats
• Great for bedrooms, nurseries, home offices, basements, and bonus rooms

Compatible Ecobee thermostats for the smart sensor include:

• Smart Thermostat Premium
• Smart Thermostat Enhanced
• SmartThermostat with Voice Control
• ecobee4
• ecobee3 lite
• ecobee3

This flexibility makes it one of the best room temperature sensor systems available.

Built-in Air Quality Monitor

Another standout feature is the built-in indoor Air Quality Monitor.

The thermostat continuously monitors indoor air quality and alerts you when conditions change.

During allergy season, this feature becomes particularly valuable, helping homeowners know when to:

• Replace HVAC filters
• Improve ventilation
• Reduce indoor pollutants

This transforms the thermostat into an indoor environmental monitor rather than simply a temperature controller.

Built-in Amazon Alexa

The Premium includes:

• Built-in speaker
• Built-in microphone
• Amazon Alexa

That means you can simply ask:

• "Alexa, lower the temperature."
• "Alexa, what's the weather?"
• "Alexa, turn on the lights."

Because it works with an Echo speaker, it adds another convenient point of access to Alexa inside your home.

Stream Music Directly from Spotify

One unexpected feature we really enjoyed was music playback.

The built-in speaker supports Spotify streaming, allowing the thermostat to function like another smart speaker throughout the home.

While it won't replace a premium home audio system, it's surprisingly useful in kitchens, hallways, or entryways.

ecobee Video Doorbell Integration is Excellent

One of our favorite features was pairing the thermostat with the ecobee Video Doorbell.

Once connected, the thermostat becomes:

• A live video display
• Two-way intercom
• Doorbell notification screen

Instead of grabbing your phone every time someone rings the doorbell, you can simply walk over to the thermostat.

For homeowners building a DIY smart security system, this integration is outstanding.

Smart Home Compatibility

The ecobee Premium works with:

• Amazon Alexa
• Google Home
• Apple Home
• Apple Watch

It also integrates with:

• Yale Smart Locks
• August Smart Locks
• Generac Smart Generators

One important point to understand:

The ecobee Premium does not support Matter directly.

However, that should not discourage buyers.

If your smart home already uses Matter, simply connect the thermostat through either:

• Apple Home
• Google Home

Using a compatible Matter Controller or smart home hub.

You won't pair the thermostat directly via Matter, but once it's connected through Apple Home or Google Home, it can still participate in your Matter-enabled smart home ecosystem.

For most homeowners, this workaround is straightforward and works well.

Apple Watch Support

Apple users receive another nice bonus.

You can control the thermostat directly from your Apple Watch.

This allows you to:

• Change temperatures
• Check your home's climate
• Adjust settings

without reaching for your iPhone.

Energy Star Certified

The ecobee Premium is ENERGY STAR® certified.

That means it is designed to help reduce heating and cooling costs while maintaining comfort.

Many local utility providers also offer rebates for ENERGY STAR-certified smart thermostats.

Before purchasing, visit ecobee's website to see whether your local energy provider participates in rebate programs.

Depending on your location, those incentives can significantly reduce the effective purchase price.

HVAC Compatibility

One of ecobee's biggest strengths is HVAC compatibility.

The Premium works with approximately 95% of residential HVAC systems, including:

• Gas furnaces
• Central air conditioning
• Boilers
• Heat pumps
• Fan coil units
• PTAC systems
• Multi-stage heating and cooling systems

Supported configurations include:

• 2H/2C systems
• Heat pumps with 2-stage auxiliary heat
• Boilers
• Three-speed fan coil units

For radiant floor heating installations, you'll need to use the included Power Extender Kit (PEK).

Before purchasing, we strongly recommend checking compatibility using ecobee's online Compatibility Checker.

Installation Experience

Our installation went smoothly.

Fortunately, our home already had a C-wire, making installation straightforward.

From removing the old thermostat to completing setup, the process took less than 20 minutes.

The mobile app guided us through onboarding, and since we had strong Wi-Fi coverage where the thermostat was mounted, the setup was completed without issue.

If your home already has a C-wire, installation is among the easiest smart thermostat installations we've experienced.

C-Wire Recommendation

Before purchasing, determine whether your current thermostat has a C-wire (common wire).

This is important.

Although ecobee includes a Power Extender Kit for homes without one, installation becomes considerably more involved if you're unfamiliar with HVAC wiring.

Our recommendation:

• If you have a C-wire, installation is an easy DIY project.
• If you don't have one, consider hiring an HVAC professional or using ecobee's included Power Extender Kit if you're comfortable working with your HVAC system.

The extra installation cost may be worthwhile for homeowners uncomfortable working inside furnace control panels.

Mobile App Experience

The ecobee app is polished, intuitive, and beginner-friendly.

Using the app, you can:

• Adjust temperatures remotely
• Create schedules
• Monitor indoor air quality
• View Smart Sensor readings
• Receive alerts
• Control connected security devices

Navigation is clean, and onboarding was one of the easiest we've experienced.

Sustainability

ecobee continues emphasizing sustainability.

The company uses eco-friendly packaging while designing products intended to reduce household energy consumption.

Combined with ENERGY STAR certification, the Premium supports homeowners looking to reduce both utility bills and environmental impact.

Expand Into a Smart Home Security System

The Premium thermostat is more than climate control.

It can serve as the foundation for a DIY smart home security system.

By adding:

• ecobee Video Doorbell Camera
• ecobee SmartCamera
• ecobee Security Bundles

Homeowners can gradually expand into professionally monitored or self-monitored home security while using the thermostat as a central control point.

For anyone starting a connected home from scratch, this is a major advantage.

What We Like

Pros

• Beautiful 4-inch color touchscreen
• Includes Smart Sensor
• Built-in Air Quality Monitor
• Excellent energy-saving features
• Built-in Amazon Alexa
• Spotify streaming support
• Works with Apple Home and Google Home
• Apple Watch support
• Displays the Ecobee Video Doorbell live video
• ENERGY STAR certified
• Compatible with 95% of HVAC systems
• Supports up to 32 Smart Sensors
• Excellent mobile app
• Eco-friendly packaging
• Easy installation with existing C-wire

What Could Be Better

Cons

• No native Matter support
• Requires a C-wire or installation of the included Power Extender Kit
• Voice intercom with the Video Doorbell had a slight audio delay during testing
• Professional installation may be preferable for homes without a C-wire
• The display might be too big for some users who don't want large objects on their walls.

Frequently Asked Questions

Does the ecobee Premium work with Matter?

Not directly. However, it integrates seamlessly with Apple Home and Google Home. If either platform is acting as your Matter Controller, the thermostat can still participate in your broader Matter-enabled smart home without requiring Matter pairing.

Does it include a Smart Sensor?

Yes. One Smart Sensor is included in the box.

How many Smart Sensors can I connect?

Up to 32 Smart Sensors can be paired with a single ecobee Premium thermostat.

How far away can a Smart Sensor be placed?

Approximately 60 feet, depending on your home's construction and wireless conditions.

Does it monitor indoor air quality?

Yes. The Premium includes a built-in Air Quality Monitor that tracks indoor air conditions and provides alerts and recommendations.

Can I answer my door from the thermostat?

Yes. When paired with an ecobee Video Doorbell, the thermostat displays a live video feed and supports two-way communication.

Does it work with Apple Watch?

Yes. You can view and control the thermostat directly from your Apple Watch.

Does it have a built-in voice assistant?

Yes. Amazon Alexa is built into the thermostat, allowing voice control of compatible smart home devices, weather updates, timers, and more.

Can it stream music?

Yes. You can stream Spotify and use the built-in speaker for music playback and voice responses.

Is it compatible with my HVAC system?

The ecobee Premium supports approximately 95% of residential HVAC systems, including furnaces, air conditioners, heat pumps, boilers, PTAC units, and fan coil systems. Use ecobee's Compatibility Checker before purchasing to verify compatibility.

Final Verdict

The ecobee Smart Thermostat Premium is far more than a smart thermostat—it's a connected home command center. Throughout our testing, it impressed us with its premium design, quick installation, intuitive app, responsive touchscreen, and thoughtful features like the included Smart Sensor and built-in Air Quality Monitor. The ability to answer an ecobee Video Doorbell from the thermostat, stream Spotify music, use Amazon Alexa, and integrate with Apple Home or Google Home makes it one of the most versatile smart home devices on the market.

While the lack of native Matter support may give some buyers pause, the ability to integrate through Apple Home or Google Home means it can still fit seamlessly into many Matter-enabled homes. Combined with broad HVAC compatibility, ENERGY STAR certification, and support for expanding into an ecobee home security system, it offers exceptional long-term value.

For homeowners looking to improve comfort, reduce energy costs, and build a smarter, more connected home, the ecobee Smart Thermostat Premium is one of the best smart thermostats you can buy today—and an easy GearBrain recommendation.

Check out The GearBrain, our smart home compatibility find engine. It can help you find, buy, and connect any smart thermostats or devices. It can even help you find other smart devices compatible with your existing smart devices, such as Google Assistant and Amazon Alexa-enabled devices.