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Emerson Sensi Black Smart Thermostat with Wi-Fi Compatibility

9 Reviews
  • Editors choice best value smart thermostat by USA today’s Reviewed
  • Save about 23% on HVAC energy: the energy star certified Sensi thermostat helps you save on your HVAC energy costs, with features like geofencing, 7-day flexible scheduling, remote access and in-app system usage
  • Most install IN 30 minutes or less: use the built-in level and step-by-step app instructions for a quick installation


The Sensi™ Touch Wi-Fi Smart Thermostat puts comfort control at your fingertips whether you are at home or on-the-go. Just a tap of the easy-to-use touchscreen display or free mobile app lets you remotely access, change or program your home temperatures – Anytime. Anywhere.
  • Editors choice best value smart thermostat by USA today’s Reviewed
  • Save about 23% on HVAC energy: the energy star certified Sensi thermostat helps you save on your HVAC energy costs, with features like geofencing, 7-day flexible scheduling, remote access and in-app system usage
  • Most install IN 30 minutes or less: use the built-in level and step-by-step app instructions for a quick installation
  • Compatibility requires C-wire: extensive compatibility with HVAC equipment found in most homes – all system types require a common wire (C-wire); check compatibility on our website
  • Smart home compatible: works with Amazon Alexa, Google Assistant, apple HomeKit and smart things smart home platforms
  • Usage reports: monitor current day and historical heating, cooling and fan run times right in the app
  • Smart alerts to detect extreme temperature and humidity levels in your home and alert you if something isn’t right
  • Get rebates: find utility rebates in your area through the rebate finder on our website
  • This thermostat does not work with electric baseboard heat and some other systems – check system and router compatibility on our website
Weight 1 lbs
Dimensions 2.9 × 8.21 × 8.92 in

Latest reviews

  1. Charger68

    Don’t get me wrong, this thermostat works great if you simply want it for its sleek and modern looks, but it has no direct instructions. The two small provided brochures explain how to program in your preferences (which is pretty straightforward anyways) but do not go through installation nor set-up of the unit. Instead, they tell you to download a free app which seems not to work on most phones including my android. Luckily, I don’t care about having control away from home, so in theory my old one will work just fine for my purposes.

    It’s easy to hook up IF you know what you are doing. Make sure the power to the old unit is turned off first, If you do not have a multimeter or other electrical safety devices, then pull out the batteries to make SURE there is no power to the unit as well as flipping off the right breaker switch. Then reconnect your wires (can’t help you with that part). It’s nice that there is a mini-level right on the base. The new screw holes aligned with my old ones, so this was done in a jiffy. At first I thought it wasn’t working, but then I clicked on the “heat mode” button and it gave me Heat, Cool, Fan, or Off. Things were straightforward from there, and now everything works.

    It’s certainly not worth the hefty $200 if it cannot do what it’s intended to, and that is to control your home thermostat through a wifi connection on your smartphone or android. Honestly, I’m disappointed; I expected much more from something with a J.D. Power and Associates award.

  2. King

    Setup was pretty easy, but you did have to have the app to do it. It walked me through the whole thing without a problem. There base plate has a backlight and level on it, which was good. It took a few attempts to connect to the network, but after that, I haven’t had a problem.

    I do like getting email warnings about humidity, and I did have to use the dehumidify option. Actually can in handy, as my job requires me to be away from home weeks at a time.

    For an entry level smart thermostat, it’s a good buy.

  3. Ben

    I purchased this thermostat and installed it myself in about 30 mins.
    First the install. It was simple, with great instructions that are in the app. Download the app and enter some basic info about your existing thermostat and your off to the races. The in app instructions have full text, pictures, and how to videos for each step in the process. If you can cut off the power to your HVAC unit by flipping the breakers, remove two screws, disconnect and reconnect a few small wires, then you can do this all yourself. If not, that’s ok, just call an HVAC tech and have him or her do the install.
    Second, customer service. I had one minor question about wiring and called customer service to confirm what I was doing. The customer service was awesome. Quick pickup by a real person who actually knew what they were talking about, not just some untrained call center worker sitting at a computer and reading the same instructions you have. They gave detailed but simple to follow instructions and stayed on the line to make sure it was right and that I was satisfied and ready to go to the next step. A plus customer service.
    Third, the product itself. It is amazing. Simple to install, simple to use, and works perfectly. There are so many things you can do with this thermostat, from basic control of the temperature in your home, to setting scheduled changes, geo fencing, and so on. Whether you just want a simple thermostat or one that can do almost anything, this one fits the bill perfectly.
    Last, the app and wireless control of your HVAC unit. Setting up the system through the app is simple. I can now control the climate in my house from anywhere in the world as long as I have cell phone service. The app (and the thermostat) not only control the system, but it also shows you the temperature in your house, the humidity inside your house, when the HVAC unit is on, when it is off, and even the weather for your city where you live. The app is easy to use, and the HVAC unit responds immediately when you make a change or turn on the HVAC unit. I was literally in bed the other night and able to turn down my a/c with a touch of the app. Amazing. Also, not sure about android platforms/ phones, but this system works great with apple Iphones and apple home. I’m sure it works just as well with Android, but I don’t have an Android phone, so I can’t give you any details on that.
    The only thing I can’t speak to is longevity of the unit/thermostat itself. I’ve only owned it for a few weeks now, but I’ve had zero issues so far, and the quality of the construction of the unit leads me to believe it will last and be reliable for a long time to come.
    Your welcome to spend several hundred dollars more for a “fancier or more advanced thermostat” but this one does everything you will ever need. And for the price, less than $150.00, it’s more than worth it.
    Bottom line, just buy it. You won’t regret it. The only real choice is what color to get, they come in black and/or white as of this review.
    Also, a quick note. This is a simple install, but please do NOT try to install this unit (or any thermostat) unless you are 100 percent confident that you know how to cut off the power to the HVAC unit AND test the wiring at the thermostat with a voltage meter to ensure there is no electrical load or current on it. Not only could you hurt yourself if you don’t cut the power first, but you could ruin your system and possibly start a fire inside the walls of your house. Not to fear monger or scare you, but electricity is no joke, so act accordingly.

  4. Topher

    Bought this 90 days ago and it has been wonderful. I had to call support on a Sunday morning and they answered! The girl helped me with a couple wire installation questions since my unit had more wires than most and I was up and running. The wifi access has been awesome. The display is beautiful. Programming was very easy. The ONLY issue I came across was the ‘nightlite’ feature that backlites the entire unit. While it was neat, it seemed as if the back lighting was actually creating too much heat behind the unit which caused the tstat cycle to run too long. I turned the feature off and the problem cleared. Its not that important really, more of a gimmick. The display still lights up a nice blue when cooling, and amber when heating. Highly recommend getting one!

  5. lotsofworkfornoresults

    The Sensi thermostat had a great app to download that took me through the removal of the old thermostat and the installation of the new one in easy to follow instructions. It even included links to videos so that you don’t need to exit out of the instructions. It came with stickers to label the wires and did frequent checks on the app to make sure we had the right configuration to install the Sensi thermostat. Added bonus, the Sensi had a back light on the panel to help you see the wires while you worked on the installation. I ran into a bit of trouble when it started blowing out hot air as opposed to cool, but was given quick advice from the Sensi support team to fix the issue. Overall, the product works well and the Wi-Fi access makes for a great tool inside and outside of the house to monitor the temperature. 

  6. Raymond

    The Sensi thermostat has a humidity display feature. The humidity percentage on the Sensi app represents the level of humidity in the home. It uses a humidity sensor onboard the thermostat to measure relative humidity where the thermostat is located, and does not control external humidity devices such as humidifiers or dehumidifiers. It only reflects the humidity in the area where the thermostat is located.

  7. Mike

    This is a great touchscreen thermostat that was simple to install and configure and easy to operate. It isn’t the fanciest touchscreen wi-fi thermostat out there, but is a good value and a sleek unit. The Alexa compatibility is certainly a plus as well. My existing thermostat did not have a C wire, but this was able to still be installed by following the detailed directions given on the Sensi website.

  8. Black Bart

    this is a great product now I can control my house temp by phone, we travel allot and when we are gone I like to keep tabs on the house temp because we live in the desert and things can get real hot and if I am having A/C problems I can have a heads up before it becomes a real problem, also I can bring the house temp down just before we arrive home. Install was very easy operating instructions very easy and I love the background lighting easy to read stat. I would recommend this product to any one.

  9. Pat

    Easy installation and great thermostat to increase the efficiency of your smart home. Sleek finish too!

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