Contents
- The Top 8
- Top 8 Smart Thermostats Reviewed in Detail
- 1. Best Overall
- 2. Best for Daily Use
- 3. Best Heavy-Duty
- 4. Best Lightweight
- 5. Best Splurge
- 6. Most Versatile
- 7. Runner-Up
- 8. Best Design
- Smart Thermostats Compared Side by Side
- How We Reviewed
- How to Choose Smart Thermostats
- What to look for
- Frequently asked questions
Choosing the best cheap smart thermostat can be tricky. The Amazon Smart Thermostat is the top pick for its easy integration with Alexa devices and simple installation. The ecobee Smart Thermostat Essential is a great value pick, helping you save energy, but you lose some advanced features for a lower price. Many buyers struggle with whether to choose a thermostat with extensive smart features or one that is more budget-friendly, as the extra functions may not always be necessary. This page will help you understand the trade-offs and make an informed decision.
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The Top 8
Top 8 Smart Thermostats Reviewed in Detail
Here are detailed reviews of the top smart thermostats available today.
1. Best Overall
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required
- An Alexa thermostat – Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy – After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy – According to EPA estimates, ENERGY STAR certified thermostats save an average of $90 on yearly energy bills.
- Programmable thermostat and automatic control – Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
- On-the-go control – Monitor and control temperature when you’re away from home with the Alexa app.
- Do-it-yourself installation – The Alexa app will guide you through the installation process, but customer service is always available.
- Reliable – Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.
- Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.
The Amazon Smart Thermostat is the best cheap smart thermostat for several reasons. It integrates smooth with Alexa and works with Ring devices for enhanced smart home functionality. The ability to create comfort zones throughout your home allows for temperature adjustments based on presence detection. This feature helps you save energy by adjusting heating and cooling based on actual use. However, it does require a C-wire for installation, which may limit compatibility with some systems. Overall, its user-friendly design and smart features make it a solid choice for budget-conscious consumers.
Pros
- Works with Alexa and Ring devices for easy smart home integration.
- Offers comfort zones based on presence detection.
- User-friendly interface for easy operation.
Cons
- Requires a C-wire for installation, limiting compatibility.
- Might lack advanced features found in pricier models.
Best for: Users wanting easy smart home integration. Not ideal for: Homes without a C-wire.
A great choice for anyone looking to save money and energy with smart features.
2. Best for Daily Use
ecobee Smart Thermostat Essential – WiFi Thermostat, Energy Star Certified
- Save up to 23% every year on heating and cooling costs, adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Compared to a hold of 72
- Compatible with 85% of systems, check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page
- Change your temperature by easily tapping the color touchscreen or using the ecobee app. Plus, free software upgrades ensure you get the best out of your Smart Thermostat Essential, for years to come
- Automatically adjusts to your set schedule to save energy when you’re gone and optimize comfort when you’re home. Keep track of your energy consumption when you’re on the go on the ecobee app
- Easy DIY install. No C Wire, no problem. Get the ecobee Power Extender Kit (PEK) for homes without a C-Wire and keep your walls looking nice with our trim kit – both sold separately
- Works with leading smart home ecosystems. Pair Smart Thermostat Essential with Apple HomeKit, Google Assistant, and Alexa
- Works with most 24 VAC HVAC equipment: Gas, oil, electric, dual fuel, forced air Conventional (2H/1C or 1H/2C) Heat Pump (2H/1C) Boilers. You can check your system’s compatibility with our online ecobee Compatibility Checker on the ecobee support page
- Add in a SmartSensor which allows you to measure the temperature in rooms that matter most. It reads temperature and movement in whatever room it is placed in for complete home monitoring and energy savings (SmartSensor 2 pack sold separately)
- Built in eco+ Smart Features: Indoor humidity detection, schedule assistant, time of use which preheats or precools your home when energy is less expensive to reduce energy use during peak hours
- Check your system’s compatibility on the ecobee support page. ecobee.com/compatibility/thermostat
The ecobee Smart Thermostat Essential is an excellent value pick. Its Energy Star certification assures you of energy savings, which can be up to 23% each year. It adjusts temperatures based on your schedule, optimizing comfort while you are home and saving energy when you are away. This product is compatible with 85% of HVAC systems, making it highly versatile. However, it does give up some advanced features present in more expensive models, such as a built-in voice assistant. This thermostat is ideal for those who want a reliable, cost-effective option without needing advanced smart capabilities.
Pros
- Energy Star certified for significant energy savings.
- Automatically adjusts to your schedule for optimal comfort.
- Compatible with 85% of HVAC systems.
Cons
- Lacks a built-in voice assistant.
- May require professional installation for some systems.
Best for: Energy-conscious users needing basic smart features. Not ideal for: Those seeking extensive smart assistant functionalities.
A solid value choice for those wanting effective energy savings.
3. Best Heavy-Duty
Google Nest Thermostat – Smart Thermostat for Home – Programmable Wifi Thermostat – Snow
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page.Connectivity Protocol : Wi-Fi.Connectivity Protocol : Wi-Fi
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory. Lock feature: No
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home; easily program an energy efficient schedule in the Google home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
- Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
- Control Nest Thermostat with Google Home and other smart home platforms. Compatible with Google Assistant and all Matter-certified voice assistants. Voice control requires a compatible smart device.
- Control the temperature with your voice using smart home devices that work with Google Assistant or Alexa[3]
- Nest Renew makes it simple to support clean energy right from home; it works with your Nest Thermostat[5] to help you automatically prioritize your usage[6] to times when energy is cleaner or less expensive
The Google Nest Thermostat is another strong contender. This model helps you save energy while ensuring your home remains comfortable. It is ENERGY STAR certified, meaning it meets energy efficiency standards. Users can check system compatibility using the online Nest Compatibility Checker. One unique feature is its scheduling capability, which allows for automated adjustments. However, this model may not work with some older HVAC systems. If your system is not compatible, you could end up with a device that doesn’t function as intended. Overall, it is a great choice for those with compatible systems.
Pros
- ENERGY STAR certified for energy efficiency.
- User-friendly scheduling feature for automated adjustments.
- Compatible with various smart home setups.
Cons
- May not work with older HVAC systems.
- Limited advanced features compared to others.
Best for: Users with compatible HVAC systems seeking energy efficiency. Not ideal for: Homes with outdated systems.
A reliable option for those who value energy efficiency and comfort.
4. Best Lightweight
Sensi Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25
- EASY DIY INSTALLATION: Do it yourself fast with a built-in level and simple step-by-step instructions. Works with the HVAC equipment found in most homes
- COMMON WIRE REQUIREMENTS: Common wire(C-Wire) required for heat pump and heat/cool only systems. C-wire not required on most systems
- SAVE ABOUT 23% ON HVAC ENERGY: ENERGY STAR-certified and packed with features that help you save money, including flexible scheduling, geofencing, remote access and usage reports
- PRIVACY PROTECTION: Sensi won’t sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes
- CONTROL FROM ANYWHERE: The top-rated mobile app for Android and iOS devices makes it easy to control your comfort from a smartphone or tablet
The Sensi Lite Smart Thermostat is designed for easy DIY installation. Its built-in level and step-by-step instructions make it simple for anyone to set up. This model is also ENERGY STAR certified, ensuring you get energy savings. It requires a common wire (C-wire) for heat pumps and heat/cool systems. However, it may not work for all HVAC systems without a C-wire, which can limit its applicability. For those who enjoy DIY projects and want a straightforward setup, this thermostat is an excellent choice.
Pros
- Easy DIY installation with built-in level.
- Energy-saving features with ENERGY STAR certification.
- Compatible with most HVAC equipment.
Cons
- C-wire required for some systems.
- Not ideal for more complex HVAC setups.
Best for: DIY enthusiasts wanting easy installation. Not ideal for: Complex HVAC systems requiring professional installation.
A user-friendly thermostat for those who want to set it up themselves.
5. Best Splurge
Google Nest Thermostat – Smart Thermostat for Home – Programmable Wifi Thermostat – Charcoal
- ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Connectivity : Wi-Fi – 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy Please refer to the product description section below for all applicable legal disclaimers.Product note: You can also check your system’s compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page
- The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, you’ll need a C wire or other compatible power accessory
- Nest Thermostat turns itself down when you leave, so you don’t waste energy heating or cooling an empty home. Lock feature: No
- Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
- Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
- Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
- Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesn’t seem right, along with helpful reminders to make maintenance easier[2]
- Control Nest Thermostat with Google Home and other smart home platforms. Compatible with Google Assistant and all Matter-certified voice assistants. Voice control requires a compatible smart device.
- Connectivity : Wi-Fi – 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy
- Please refer to the product description section below for all applicable legal disclaimers
The Google Nest Thermostat in Charcoal offers the same energy-saving features as its snow counterpart. It is ENERGY STAR certified and designed for efficient home comfort. With its programmable features, you can easily set schedules that adapt to your lifestyle. Users can check system compatibility using the Nest Compatibility Checker before purchasing. One limitation is that it may not fit older systems, which can lead to frustration if you have an incompatible HVAC setup. Nonetheless, it serves as a stylish and functional choice for many homes.
Pros
- ENERGY STAR certified for energy savings.
- Programmable schedules adapt easily to your routine.
- Modern design with a sleek charcoal finish.
Cons
- May not work with older HVAC systems.
- Limited advanced functionality compared to more expensive models.
Best for: Style-conscious users seeking energy efficiency. Not ideal for: Homes with outdated HVAC systems.
A stylish and efficient thermostat for those who want modern aesthetics.
6. Most Versatile
Sensi Smart Thermostat, Wi-Fi, DIY, Alexa, Energy Star Certified, ST55
- PRIVACY PROTECTION*: Sensi won’t sell your personal information to third parties
- EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
- SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access and usage reports
- SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you don’t have to patch and paint your walls
- SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
The Sensi Smart Thermostat offers versatility and ease of installation. It is designed for users who want a simple setup with an intuitive app. The thermostat comes with energy-saving features and is ENERGY STAR certified. It does not require a C-wire in most applications, which broadens its compatibility. However, it may not be suitable for heat pump systems that require a common wire. For those looking for a versatile thermostat that combines ease and functionality, this is a strong option.
Pros
- Versatile installation options; C-wire not required in most cases.
- User-friendly app for easy control.
- ENERGY STAR certified for energy savings.
Cons
- Not ideal for heat pump systems requiring a C-wire.
- Limited advanced smart features compared to high-end options.
Best for: Users wanting a versatile and easy-to-use thermostat. Not ideal for: Heat pump setups requiring a C-wire.
An efficient and versatile thermostat for a variety of homes.
7. Runner-Up
Honeywell Home T5 Smart Wi-Fi Thermostat
- High use of the scheduling feature of the T5 thermostat saved customers between 8 and 16% on heating and cooling bills. Dollar savings range based on nationwide average annual single-family detached home’s heat and cooling bills; actual savings varies based on consumption.
- Save Energy and Get Rewarded. Check with your energy provider about available energy savings rebates to save on your purchase. Plus, eligible customers can enroll in their local Utility’s “DEMAND RESPONSE PROGRAM” which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
- 7-Day Flexible Scheduling or Location Based Temperature Control. It’s your choice. 7-day scheduling programs your thermostat. Geofence technology helps make you comfortable by using your smartphone’s location to know when you’re away and when you return.
- Auto Home and Away Mode. Enjoy ideal temperatures at home, then save when away.
- ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
- C-WIRE POWER ADAPTER REQUIRED: Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.
- Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
- The T5 thermostat is ENERGY STAR certified and you can program it based on your schedule, or let it adapt to your life as plans change
The Honeywell Home T5 Smart Wi-Fi Thermostat is a strong choice for daily use. It features a scheduling option that can save users between 8 and 16% on heating and cooling bills. The T5 is compatible with most HVAC systems, making it a versatile pick. However, it may not support some advanced smart home features that other models offer. This thermostat is ideal for homeowners looking for reliable energy savings with a straightforward user interface.
Pros
- Scheduling feature for significant energy savings.
- Compatible with most HVAC systems.
- User-friendly design for easy operation.
Cons
- Lacks advanced smart features found in competitors.
- May require professional installation for some systems.
Best for: Homeowners wanting reliable energy savings. Not ideal for: Tech-savvy users seeking advanced features.
A reliable choice for those who prefer simple, effective energy savings.
8. Best Design
Amazon Smart Thermostat – Save money and energy – Works with Alexa and Ring – C-wire required (Pack of 2)
- The information below is per-pack only
- An Alexa thermostat – Amazon Smart Thermostat is an easy way to switch from a traditional thermostats for homes and help reduce energy usage.
- Create comfort zones throughout your home by connecting to select Alexa devices to automatically adjust heating and cooling based on temperature readings or presence detection.
- Save money and energy – After purchase, Amazon will send you an email with details about home thermostat rebates that may be available from energy providers in your area.
- Save energy – According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
- Programmable thermostat and automatic control – Create your own home, away and sleep schedules, or have Alexa automatically control the temperature with Alexa+ advanced features.
- On-the-go control – Monitor and control temperature when you’re away from home with the Alexa app.
- Do-it-yourself installation – The Alexa app will guide you through the installation process, but customer service is always available.
- Reliable – Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.
- Create your Alexa+ home: With Alexa+, set routines using just your voice, control multiple devices at once, and chat casually to make requests.
The Amazon Smart Thermostat Pack of 2 combines value and convenience. You can outfit two rooms with smart controls at once. Like its single unit counterpart, it features Alexa integration for easy control. However, the requirement for a C-wire can limit where you can install these thermostats. If you have room for two units and need affordability, this pack is a great option for larger spaces or multi-room setups.
Pros
- Includes two units for multi-room control.
- Works smooth with Alexa for voice commands.
- User-friendly installation process.
Cons
- C-wire required for installation, which may limit options.
- Lacks some advanced features found in higher-end models.
Best for: Users needing smart controls in multiple rooms. Not ideal for: Homes without a C-wire.
A budget-friendly choice for multi-room smart home setups.
Smart Thermostats Compared Side by Side
This table compares the best cheap smart thermostats. It includes features, compatibility, and other important factors. If you need a reliable and affordable option, check the ‘Best Cheap Smart Thermostat’ row.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | Best Overall | Amazon | $56.99 | Check |
| 2 | ecobee Smart Thermostat Essential | Best for Daily Use | ecobee | $139 | Check |
| 3 | Google Nest Thermostat | Best Heavy-Duty | $117.4 | Check | |
| 4 | Sensi Lite Smart Thermostat | Best Lightweight | Copeland | $64 | Check |
| 5 | Google Nest Thermostat | Best Splurge | $117.49 | Check | |
| 6 | Sensi Smart Thermostat | Most Versatile | Copeland | $103.49 | Check |
| 7 | Honeywell Home T5 Smart Wi-Fi Thermostat | Runner-Up | Honeywell Home | $77.25 | Check |
| 8 | Amazon Smart Thermostat | Best Design | Amazon | $109.99 | Check |
| 9 | ecobee Smart Thermostat Premium | — | ecobee | $259.99 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How We Reviewed
Where our data comes from
Our data comes from manufacturer specifications, verified online reviews, and user feedback. We analyzed nearly 30 different smart thermostats to find the best options. This allowed us to compile accurate and up-to-date information.
How we built this shortlist
To build this shortlist, we focused on smart thermostats that are affordable and have high user ratings. We considered features like energy savings and ease of use. We also evaluated common compatibility across various heating and cooling systems.
What we ruled out and why
We ruled out any smart thermostats that lacked essential features like Wi-Fi connectivity or energy-saving capabilities. Models that did not have significant user reviews or ratings were also excluded. This ensured that only reliable and well-reviewed products made the cut.
What we did not do
We did not conduct any hands-on testing or lab measurements. All comparisons were based on data sourced from manufacturers and customer experiences. We did not create any subjective scores, ensuring the information remains objective and factual.
How often this page is updated
This page is updated every month to reflect the latest product information and user reviews. We monitor changes in technology, new releases, and updated user experiences. This keeps the content fresh and relevant for potential buyers.
How to Choose Smart Thermostats
Check for Compatibility
Before buying a smart thermostat, check if it works with your HVAC system. Most thermostats require a C-wire for power. Use the compatibility checker on the manufacturer’s site to confirm. Not all systems support every model, so it’s important to verify first.
Consider Smart Features
Choose a model that offers features you will actually use. Features like scheduling, remote access, and energy reports can save you money. Make a list of what matters most to you. This will help narrow your options and find the best fit for your needs.
Look for Energy Savings
Energy savings should be a focus when selecting a thermostat. Many smart thermostats claim to reduce energy bills by 20% or more. Look for models with Energy Star certification. This ensures they meet energy efficiency standards and can help save you money in the long run.
Installation Ease
Consider how easy the thermostat is to install. Some models offer DIY installation with step-by-step guides. If you’re not comfortable with wiring, choose a model designed for easy setup. This can save you time and money on professional installation.
User Reviews
Always check user reviews before deciding on a thermostat. Real-world experiences provide insight into performance and reliability. Look for consistent feedback regarding ease of use and the effectiveness of features. This can guide you toward a product that meets your expectations.
What to look for
Energy Efficiency
Energy efficiency is key when choosing a smart thermostat. Look for models that are Energy Star certified. These thermostats can help reduce energy usage and lower bills. Many models boast savings of up to 23%, making them a cost-effective choice.
Smart Home Integration
Consider how well the thermostat integrates with your existing smart home devices. Models like the Amazon Smart Thermostat work well with Alexa. This allows you to control your home’s temperature with your voice. Smart integration makes life more convenient and efficient.
Installation Requirements
Different thermostats have different installation needs. Some require a C-wire, while others do not. Models that allow for easy DIY installation can save you time and money. Understand your home’s wiring before purchasing to avoid headaches later.
User-Friendly Features
User-friendly features can enhance your experience. Look for intuitive apps and clear displays. Features like scheduling and remote access make it easier to manage your home’s temperature. These conveniences can lead to better energy savings and comfort.
Price vs. Features
Balance price with necessary features when choosing a thermostat. Cheaper models may lack advanced options like geofencing or energy usage reports. Consider what you truly need versus what you might pay extra for. This will help you find a model that fits your budget and requirements.
Frequently asked questions
What is the best cheap smart thermostat?
The Amazon Smart Thermostat is considered the best cheap smart thermostat due to its ease of use and excellent integration with Alexa.
How do smart thermostats save energy?
Smart thermostats save energy by learning your schedule and adjusting temperatures automatically. They can also provide energy reports to help you optimize usage.
Do I need a C-wire for a smart thermostat?
Many smart thermostats require a C-wire for power. However, some models can work without one. Check compatibility before purchasing.
Can I install a smart thermostat myself?
Yes, many smart thermostats offer DIY installation with easy guides. However, if you’re unsure about wiring, consider seeking professional help.
What features should I look for in a smart thermostat?
Look for energy-saving capabilities, smart home integration, user-friendly apps, and scheduling options. These features enhance convenience and efficiency.
Shopping around? We have 22 more smart thermostat guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- USDA plant hardiness zones USDA Agricultural Research Service
- EPA WaterSense U.S. Environmental Protection Agency
About the author
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