Ecobee4 Alexa-Enabled Thermostat with Sensor Review

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The Ecobee4 gets the best features from its older siblings,and introduces new features that make it one of the best smart thermostats so far.

Every dollar paid for its purchase is well worth it, considering the truly smart features that comes with it, from the responsive and intuitive touchscreen display to the efficient sensor, intuitive apps, and integrations with most of the best in thermostats. 

The integrations include Amazon Alexa and Apple Homekit, even with the lesser-known, yet just as effective, IFTTT and Samsung SmartThings.

Of course, every contemporary smart thermostat, worth its salt, reduces your monthly energy bill by using intelligent features for your benefit. But you must install and use it properly, since, like all smart home appliances, it’s just a tool at your service.

You have to spend 15 minutes or so to read the instruction manual before installation, so you can maximize the use of its features. You can then get the best value for your money!


Ecobee4 Alexa-Enabled Thermostat with Sensor

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The Ecobee4 thermostat has many things going for it. We again suggest reading the instructions so that you will have a deeper understanding of these features, not to mention that you can take the guesswork out of their use.

Intuitive touchscreen display

We have to praise the Ecobee4 designers for its intuitive touchscreen display, especially for its quick responses and ease of use. You will likely appreciate these aspects, too, especially when you’re used to ultra-responsive touchscreens on mobile devices. But many buyers also observe that it will not hold a candle to the gorgeous Nest touchscreen display, especially when you’re a fan of iPads and the like.

Remote sensor feature

You can rely on the thermostat to turn on your air-conditioning unit during hot days and turn on your heating unit on cold days via the Internet. But even better, it also displays the local weather service in real time!

The Ecobee4 has a remote sensor that makes it possible for the thermostat to determine the presence of persons inside your home. In contrast, the Nest thermostat uses a predictive algorithm for the same purpose.  The remote sensor has motion and proximity detection, as well as temperature functions, which are useful for identifying rooms where energy-wasting hot and cold spots are present.

You can also purchase additional room sensors if you still need more of them around your home. Many customers also use the Ecobee4 for non-residential purposes, such as in monitoring wine cellars. You can even buy separate sensors for your home and office for this reason.

You can place the sensors in different zones; each sensor can be placed on a desk or mounted on a wall. This will help in balancing out the energy-efficient heating and cooling systems in your home, as well as detect where you are in your home and adjust your temperature preference in it. Your monthly energy bill will be reduced since your entire house will not be heated up or cooled down to your desired temperature – just the room where you’re in.

Comes with a Power Extender Kit (PEK)

The Ecobee4 requires a C-wire during installation. But there’s no need to rewire your home’s HVAC system, a lengthy process otherwise, because the unit already comes with its own PEK. You may also skip the PEK, but only when you are familiar with electrical wiring procedures and their safety steps.

We like the larger terminals and buttons for clamping the wires on the PEK. You will also find the magnet at the back handy for sticking it inside the HVAC’s main unit.

Comes with Alexa Voice Service

With the Alexa Voice Service, you can actually command the Ecobee4 to perform a wide range of tasks – as much as 10,000 so-called skills, according to the manufacturer. These skills include adjusting the temperature, setting the timer, and reading the news, among others, all of which can be used as you wish, using the unit’s Far-field voice technology.

Compatible with several apps

You can control the unit from your iOS and Android devices, a convenient feature that most smart thermostats now offer. The unit also works well with IFTTT, Apple HomeKit, and Samsung SmartThings.

All of these features are obviously designed to save on energy costs by as much as 23% every year, perhaps even higher, depending on your own energy-saving habits. The facts that it automatically turns your home’s HVAC uniton and off, as well as adjusts the temperature for energy-saving purposes, are behind its popularity.  The usage reports generated by the software over time can be a useful tool in maximizing energy use and minimizing energy bills.


  • More attractive design
  • Effective sensor
  • Relatively easy set-up, despite the C-wire requirement
  • Results in energy efficiency and reduced energy bills


  • Thicker and larger design, which a few buyers say looks bulkier than it should be

Final Verdict

The Ecobee4 is a smart thermostat that performs as well as expected, from its responsive user interface to its automatic temperature adjustments.

While there are a few improvements that can take it to the Nest level, it’s a highly satisfactory thermostat that homeowners and business owners will find useful. Plus, at its price point, you will get better value for your money than buying a pricier thermostat with advanced features, which you may not even appreciate all that much anyway.

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