Best King Programmable Thermostats in 2026

SMART HOME INTEGRATION. The Wi-Fi 7-Day is compatible with voice assistant devices like Amazon Alexa, Google Assistant, Microsoft Cortana, and more.

THERMOSTAT THAT FITS YOUR LIFE. 7-day, 4 periods per day, flexible programming lets you sync your comfort with your schedule.

EASY OPERATION AND INTUITIVE. Big, backlit digital display and easy controls make for a user-friendly experience.

EASY-TO-USE-APP. Choose from the Total Connect Comfort app or the Resideo app to control your Wi-Fi thermostat anytime, anywhere.

COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.

Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present. Ability to view local weather from web portal or app

Does Not Work with Aux Heat Pump and Multi-Stage Systems, Does Not Work RV, Does Not Work 120/240V Electric Baseboard / Line Volt.

Very Suitable for Middle-Aged and Elderly People, Easy-to-read Digital 4.5 sq. in.

Display with Large Characters and Blue Backlight Big Separate Buttons for Easy Setting

Separate Heating and Cooling Swing (Cycle Rate) _ Low Battery Indicator

Room Temperature Calibration Adjustment _ 5 Minute Compressor Delay Protection (Selectable on or off)

Precise Temperature Control with +/- 1 Degree in Fahrenheit and Celsius for Ultimate Consistent Control.

Friendly Service: 2-year Worry-Free Warranty and 24h Customer Service,

Precise temperature control with +/- 1 degree in Fahrenheit and Celsius for ultimate consistent control.

Easy installation, dual power with hardwire or 2 AAA batteries, C-wire is not required.

Integrates seamlessly with your preferred smart home system.

Comes with Siri and Alexa Built-in for hands-free control, your way

Everything you need to install your smart thermostat, besides basic tools, is in the box and installation should take about 45 minutes.

ecobee Smart Thermostat Premium is a complete home monitoring hub that includes built-in smoke alarm detection and alerts to possible break-ins when your system is armed. Get notifications during sudden temperature drops that could cause damage. ecobee Smart Security plan required

Comes with a smart speaker and your choice of Siri or Alexa Built-in. Control your home using the power of your voice and listen to your favorite Spotify playlists and podcast through your thermostat’s speaker. Apple home hub required to enable Siri on Smart Thermostat Premium

TEMPERATURE LIMITS: Stay in your comfort zone with adjustable heating and cooling temperature limits

YOUR WEEK YOUR WAY: Enjoy 7-day or 5/2-day temperature programming that fits your schedule

Ideal for home, RV, and Mobile Home uses.

Mercury Free

【&】Notice；does not work with electric baseboard heat (120v-240v) or does not work with aux heat pump and multistage systems and does not work RV.

【&】5.0 sq. in display with large characters and blue backlight big separate buttons for easy setting.

【&】Very suitable for middle-aged and elderly people, easy-to-read and use.

【&】Separate heating and cooling swing (Cycle Rate) setting and Room temperature calibration adjustment.

【&】Low battery indicator and a/c 3 minute compressor delay protection (selectable on or off).

【&】with room temperature & humidity detect, Cooperate with the equipment to adjust the optimal temperature and humidity value to provide the most comfortable environment.

【&】Friendly Service: 2-year worry-free warranty and 24h customer service.

for use with central Gas, Oil, or electric furnaces, ​millivolt systems (compatible with 85% of systems )

Does Not Work with Aux Heat Pump Systems, Does Not Work RV, Does Not Work 120/240V Electric Baseboard / Line Volt.

This thermostat has a built-in battery change and filter change reminders, retains programmed memory in event of power outage.

with compressor protection feature, Wait 5 minutes for the system to restart safely, without damage to the compressor (Selectable on or off)

Room Temperature Calibration Adjustment, Precise Temperature Control with +/- 1 Degree in Fahrenheit and Celsius for Ultimate Consistent Control.

Dual Powered by 24VAC Power or 2 AAA Batteries, C-wire is Not Required. Friendly Service: 2-year Worry-free Warranty and 24h Customer Service

Note: The two-level mode cooling heating icon is displayed +1: as two-level mode. ( +1 is not displayed for single-level mode)

5-1-1 day programmable, intuitive wake, leave, return, sleep programming icons. ( Notice; Press the Hold button to easily maintain the temperature, to control the non-programmable mode ).

Accurate temperature control of +/-1-Degree F for consistent comfort, Room temperature display range: 41°F to 95°F, Temperature control range: 44°F to 90°F.

Support a heat or cool swing set up (0.2°F to 2°F), which will either prolong or shorten the temperature open time. make comfortable temperatures to reduce energy usage, savings on annual heating and cooling costs.

Room temperature calibration adjustment, and 5 minute compressor delay protection (Selectable on or off), with air filter change reminder and low battery indicator available.

4.5 sq. inch display with white backlight, easy-to see and read. large, clear backlit digital display, very suitable for middle-aged and elderly people.

Dual-powered (battery and/or hardwire 24Vac power), easy access battery compartment.

Friendly service: 2-year worry-free warranty and 24h customer servic.

Power shuts off at 50°f

Helps save energy

Compressor short cycling protection,1 heating, 1 cooling and heat pumps without auxiliary heat, Does not work with electric baseboard heat (120-240V).Detailed instructions for easy installation,C-wire needed for proper installation. Note-c wire is required and is the primary power source for your thermostat. Without a c wire, your thermostat will not power up，In the case of battery power, there is no need to connect the C wire.

Accurate temperature control of +/-1-Degree F for consistent comfort, Detailed instructions for easy installation, 12 or 24 hour clock.

💯【High Accuracy And Safe】: Built-in highly accurate temperature sensor, ambient temperature is detected automatically by remote controller. High and low temperature alarms are available, the maximum load can reach 15A, 1650W.

🎈【Widely Used】: Widely used for greenhouse,mushroom house, reptiles breeding, pet feeding, wine cellar, cigar storage, home brewing, seed germination, fermentation, baby room, attic fan, swamp cooler, evaporative cooler, space heater, wall panel heater, electric fireplace heater, garage, rv, etc.

Very Suitable for Middle-Aged and Elderly People, Easy-to-read digital 5.0 sq. in.

Display with Large Characters and White Backlight Big Separate Buttons for Easy Setting

Separate heating and cooling swing (Cycle Rate) _ Low battery indicator

Thermostat Room temperature calibration adjustment _ 3 minute compressor delay protection (selectable on or off)

Thermostat Precise temperature control with +/- 1 degree in Fahrenheit and Celsius for ultimate consistent control.

Dual powered by 24VAC power or 2 AAA batteries, C-wire is not required. Friendly Service: 2-year worry-free warranty and 24h customer service

Vacation set-point override to reduce energy use while away from home,easy programmable mode ensures the desired temperature is reached by the programmed time.

Accurate temperature control of +/-1-Degree F for consistent comfort, Detailed instructions, 12 or 24 hour clock.

Easy to read and use: 5.0 sq. inch digital display with large characters and green backlight. separate buttons for easy setpoint temperature, very suitable for middle-aged and elderly people to use.

Upgrade function: The thermostat with humidity and temperature monitor to ensure you’re always aware of changes in your home environment.

It gives precise temperature control with +/- 1 degree in Fahrenheit and Celsius for ultimate consistent control to keep you comfortable.

Easy installation and the battery is easy to replace, with dual powered by 24VAC power or 2*AAA batteries, C-wire is not required. built-in low battery reminder, compressor delay protection and more.

Please contact us at once if any quality problem, come with 2-years warranty and 24h customer service.

Multi-Volt Rated 120/208/240V

Over-the-Air (OTA) firmware upgradeable

Temperature Range 41º - 90ºF (5º - 32ºC)

User Defined Max Temperature Lock

Program 4 or 6 Time Periods Per Day For Maximum Flexibility

Electronic Sensing For Accurate Temperature Control (±1ºF)

For Use On Baseboard, Fan Forced & Radiant Electric Heaters

Back-lit display for easy viewing

Program 4 or 6 time periods for maximum flexibility

Range: 44°F to 95°F (7°C to 35°C)

Save up to 28% on your heating costs

♨️SUPPORTS HEATING, COOLING, VENTILATION, HUMIDIFICATION & DEHUMIDIFICATION: For heating and cooling, this thermostat can adjust the temperature to your desired level and maintain it using a temperature control algorithm. For ventilation, the thermostat can adjust the fan speed to improve air circulation. For humidification and dehumidification, the thermostat can adjust the humidity level by controlling the HVAC system's operation, such as turning on or off the humidifier or dehumidifier.

📉REMOTE CONTROL & HISTORICAL DATA: Track your heating and cooling behaviors with the 7-day historical energy reports. Review this data directly from your smart thermostat or from your phone by downloading the gadget app that is available for either IOS or Android devices and make any necessary adjustments. You can also control your thermostat remotely through your Amazon Alexa.

🏊POOL AQUASTAT & TEMPERATURE CALIBRATIONS: Both great features for regulating temperatures. The Pool Aquastat is unique feature that most competitors don't have. It regulates -the temperature of a swimming pool or spa to make sure it doesn't fall below a certain set point; and the Temperature calibration feature, allows you to adjust the temperature reading on the thermostat by a certain number of degrees Fahrenheiy by adding or subtracting up to 0.1°F to the temperature reading.

🗣️LANGUAGES: English, Chinese, Spain, Italian, Russian, Polish, Czech, German, French, Slovenski, Swedish, and Portuguese.

📋Certifications: CE/ISO9001/RoHS, recyclable packaging