You may think it is challenging to find the best smart thermostat under $100, but in fact there are some wonderful options available to you within this price range. Whatever you are looking for in a smart thermostat, there is an option that will fit your specific needs.
Most thermostats require a smart home hub for their voice activated features to be functional. Whether you prefer Alexa, Google home, or another smart home system, you can find an affordable smart thermostat that will work with your system. Insteon offers an extensive system of compatible appliances that work with the hub and also allow you to connect to Alexa or Google home for complete control.
Perhaps you are less concerned about being able to program and control your thermostat with your voice, but want to be sure that you can control and monitor temperature remotely and conveniently using your smartphone, tablet, or computer.
You can choose a programmable thermostat that will stick to your presets unless you tell it otherwise using your smart device. This can allow you to have a good temperature set for your pets or housemates, but also be able to alter that temperature if you are going to come home early, be out late, or have housemates or family arriving unexpectedly.
Effortless Energy Conservation
If you want your thermostat to save you money without having to think about it much, a thermostat equipped with geofencing can use your smart phone’s location to determine what temperature to set your home to so that your home will always be your ideal temperature when you get home, but you won’t be wasting energy heating or cooling an empty home while you are away.
Even if you have a completely unpredictable schedule, geofencing will allow your thermostat to adjust to your schedule as it occurs. If housemates arrive unexpectedly, these thermostats can generally be manually overridden.
Best Smart Thermostat Under $100
Honeywell Lyric T5 Wi-Fi Smart 7 Day Programmable Touchscreen Thermostat with Geofencing
This Honeywell thermostat offers both smart technology and programmable settings so you can use it exactly how you like. You can let the Lyric T5 adapt itself to your movements by allowing it to monitor your location and change temperature accordingly or you can set a designated schedule for the thermostat that it will follow no matter what you do. Regardless of what setting you choose, you can always monitor your temperature remotely from your iOS or Android device.
● Works with Alexa for voice control
● Works with Apple HomeKit and Siri
● 7-Day flexible scheduling
● Location-based temperature control
● Auto changeover between heating and cooling
● Requires four wires rather than the three required by older home thermostats
● Requires C wire
● App can be error prone
● Thermostat can be prone to going offline
Honeywell Lyric T5 Specifications
● Works with Android and iOS devices
● WiFi enabled
● Warranty: one year
● Works with Alexa
Honeywell Lyric T5 Review
The Lyric T5 thermostat gives you the confidence of knowing that the temperature of your home will be exactly what you want it to be no matter where you are. Are you the type that does everything according to a schedule, or are you more of a go by the flow kind of person?
It is up to you whether you want to allow the thermostat to adapt to your life or program it based on your schedule. You can connect to your thermostat from anywhere using your tablet or smartphone so that you can get the best of comfort at home while still saving money on your energy bills by changing the temperature when you’re not home.
The Honeywell Lyric connects via Wi-Fi to make your home comfort simple and easy. You can connect a variety of home products using one application so that your thermostat works with the rest of your home to give you a comfortable living environment.
Homekit technology allows you to build your smart home maintenance at your speed. Add as many Homekit enabled devices as you like to your system as you find need. Future devices will work well with your thermostat for an integrated system.
The app that is utilized to connect your phone or smartphone to the thermostat is compatible with iOS or Android devices. This app utilizes geofencing to keep track of your location and update the thermostat
Therefore, even if you forget to change your schedule or alert the thermostat of a change, the thermostat will know that you are still out or not coming home when expected and can alter its behavior accordingly. The thermostat will make sure your home is at your ideal temperature before you arrive.
Emerson Sensi Wi-Fi Thermostat for Smart Home
If you are a do-it-yourself type person but are concerned about the complexity of installing a smart thermostat, this Emerson Sensi can put your mind at rest. The innovative app utilized by this thermostat can identify your wiring system and automatically connect the same way to make installation a breeze.
This is a classic looking thermostat but has all the smart features of the latest thermostats. It can use geofencing to track your location and adjust temperature accordingly or you can program it with 7-Day control. Whether you want to use Alexa, Google, or Siri, this thermostat can provide a connected smart home experience.
● Easy setup with app that can identify pre-existing wiring
● Longer warranty than most competition
● Typically does not require C wire
● Tends to go offline unexpectedly
● May not connect to Wi-Fi as well as thermostats that require a C wire
● C wire required for heat only, cool only, or heat pump systems without exhilarate
Emerson Sensi Specifications
● 3 year warranty
● Compatible with Google, Alexa, and Siri
Emerson Sensi Review
This innovative and classic looking Sensi thermostat by Emerson makes installation easier than ever with its new mobile app. The app can indicate which wires are connected to the old thermostat so it can automatically configure its settings to your home. If you are installing your first thermostat, the well illustrated in-app instructions can get you through the installation process easily from start to finish.
The primary goal in the design of this thermostat is compatibility. It is designed to work with your existing wiring for control of oil, gas, geothermal, radiant heat systems, or heat pumps so you can feel confident that this thermostat will work with whatever system you have. In most cases, this Wi-Fi thermostat doesn’t require a common wire, unlike most Wi-Fi thermostat, so it is much easier for the average homeowner to install. The thermostat utilizes two standard AA batteries for backup power.
You can control and monitor the thermostat using smart home systems including Alexa, Google, or Siri. The Emerson Sensi utilizes geofencing to track your smartphone’s location so that it does not waste money heating or cooling your home while you aren’t there but will also make sure that your home is the perfect temperature by the time you arrive.
If you would rather have your thermostat stick to a schedule, 7-Day flexible scheduling lets you customize your temperature exactly how you want it. This thermostat will detect extreme temperature and humidity levels and alert you even if you aren’t home.
It can control your cooling and heating to your settings even if you lose your Wi-Fi connection. Accuracy to within one degree of your requested temperature make this one of the most accurate thermostats in the industry.
Vine Wi-Fi Programmable Thermostat Smart Thermostat with Touchscreen and Nightlight 2nd Generation
If you want the most features for your money in a sweet little thermostat that won’t draw attention to itself in your home, this Vine Thermostat may be right for you. Features like an LED night light and a touch screen LCD display make this thermostat extremely easy to use and multifunctional.
The vine has weather forecasting built in so that you can know what to expect for your day just by glancing at it. While you can expect all Wi-Fi thermostat to sometimes lose connection, this Vine thermostat reconnects more rapidly than competition to reduce your downtime.
● Lifetime support offered by company
● Works with four or five wire connections
● Quick and easy installation
● Night light
● Weather forecasting
● Works even with heat only systems
● C wire required
● Viewing angle not good on screen, requiring you to look directly at it from in front
● YouTube videos are not a great source of support and little else is offered by the company
Vine WiFi Smart Thermostat Specifications
● 3 year warranty
● Works with Android and iOS
● Works with Alexa
Vine WiFi Smart Thermostat Review
The Vine 2nd Generation thermostat is a good-looking thermostat that won’t look overly technical or draw attention to itself in your home. It is simple to use and works with almost any heating and cooling system, even heat only systems. With weather forecasting and a night light, this little thermostat packs a lot of features for the price.
The Vine features a 3.5 inch LCD touch screen for easy interface with your thermostat. The 7-Day programmable setting allows for 8 periods a day for extremely customized temperature control for every hour of the day, but is also very simple to program. You can remotely access the Vine with an Android or iOS device. The Vine thermostat offers weather forecasting so that you can be informed about what to expect during your day.
It has an LED light that is programmable so that it can also offer you customized lighting in the evening. If you lose the Wi-Fi connection for some reason, the Vine thermostat will rapidly reconnect so that you aren’t frustrated by lengthy connection issues.
Multiple layers of security encryption offer confidence that nobody else will access any information on this thermostat. This can be comforting for those just getting used to home technology and worried about privacy.
Batteries are not required for this unit, but it is necessary to connect it to a C wire. With one account you can access multiple devices so that you have all the control of your home or business at your fingertips.
Insteon Smart Thermostat, Works with Alexa via Insteon Hub, Uses Superior Dual-Mesh Wireless Technology
Does the idea of an entirely smart home intrigue you with the unlimited potential of easy living and money-saving? This thermostat requires you to dive in head-first since the Insteon Hub is required to use most of the features of this thermostat. Once you have the Hub you’ll be able to use a wide variety of Insteon accessories and appliances utilizing voice control and remote access. This thermostat allows you to remotely change the temperature utilizing your smartphone or voice control.
● Integrates with insteon Hub system for complete home control
● Allows remote control and monitoring of temperature
● Easy-to-use design
● Meant to be used with Insteon and does not work well as a programmable thermostat
● Minimal control from the app
● Most features only work with the Insteon Hub so you will need to purchase that as well to use this thermostat to the fullest
Insteon Smart Thermostat Specifications
● Works with Alexa and Google home
● Requires Insteon hub for most features
● Two year warranty
● Control with iOS, Android, or Windows phone
Insteon Smart Thermostat Review
If you are excited by the idea of a smart home in which everything in your home can be controlled via a central Hub and using your voice or smartphone, the Insteon Smart Thermostat may be the program you’re looking for. Keep in mind that this thermostat relies on the Insteon Hub which is sold separately, so if you are not intending to set up your home using Insteon this may not be the right thermostat for you.
If, on the other hand, you love the idea of controlling not only the temperature, but also lights, speakers, and a range of other accessories and appliances just by talking to your thermostat, the system may be perfect for you.
The Insteon Thermostat can provide you with remote control over your temperature no matter where you are.
This thermostat works with the Insteon Hub to give complete control from your smartphone. You can alert your thermostat if you’ll be coming home late or if you have someone unexpectedly arriving at a vacation home. With the insteon Hub, you can use Alexa to tell the thermostat what to do. Insteon Hub lets you control insteon lights and appliances as well as the thermostat.
Insteon can also work with Google Assistant to control speakers, Android phones, TVs, Etc. If you have an Apple watch, you can change the thermostat with a tap of the watch. Installation is easy with the insteon app. Just take a picture of how your current thermostat is connected and then connect your new thermostat in the same way.
Honeywell WiFi 7-Day Programmable Thermostat
If you are looking for a straightforward smart thermostat that can work with whatever home system you have or choose to go with in the future, or can work as a basic programmable thermostat, this Honeywell 7 day programmable thermostat may be perfect for you.
This thermostat doesn’t have as many bells and whistles as some of its competition, but the price is good and this is an efficient and dependable thermostat that can get the job done. It allows remote access with your smart device. You can achieve voice control through any of the common home systems on the market, or choose to just control your thermostat with the interface and through the app.
● Very easy installation
● Easy to use and clear interface
● Works well if using for 7-Day programming
● No battery backup, so when the power goes off this thermostat will not function
● Tends to cycle multiple times an hour, pulling more power than necessary by turning on and off too frequently
● Does not have as many features as some other thermostats
● Shorter warranty period than competition
Honeywell WiFi 7-Day Programmable Specifications
● Works with Alexa, Google Assistant, Samsung SmartThings, Yonami, IFTTT, or Wink,
● WiFi equipped
● One year warranty
Honeywell WiFi 7-Day Programmable Review
Honeywell is a trusted name in thermostats as well as other appliances and this smart thermostat is a good example of their commitment to quality. The Honeywell Programmable Thermostat offers 7 Day programming and four program periods for complete flexibility.
You can see the local weather on either the web portal or the app. This thermostat will work with any heating and cooling system, as long as a C wire is present. Whether you want to use this thermostat with Alexa, Google Assistant, Samsung SmartThings, Yonami, IFTTT, or Wink, you will have a thermostat that responds to your voice commands.
If you would rather just use this thermostat with 7-Day programming, you can also do that. The backlit digital display is large enough to be very easy to read, or you can use your smartphone or tablet to program this device.