10 Best Programmable Thermostat Under $100 of August 2025

• 7-Day menu-driven programming with 4 periods per day
• Large backlit touchscreen display shows current room temperature and set point simultaneously
• Smart Response Technology allows the thermostat to learn the amount of time a system needs to reach a desired temperature and adjusts accordingly
• Auto change from heat to cool
• Includes change reminders for filters and low batteries

Honeywell Home

• Flexible programming: 5-2 day or one week programming
• Large backlit display shows current room temperature and set point temperature simultaneously
• Smart response learning - learns your heating/cooling cycle times to deliver the right temperature when you want it
• Auto change from heat to cool
• Includes change reminders for air filters and low batteries
• Temporary and permanent hold settings
• Real-time clock automatically adjusts for daylight savings time
• Program is retained in memory in the event of a power outage
• 12 or 24-hour time display

Honeywell Home

• THERMOSTAT THAT FITS YOUR LIFE. 7-day, 4 periods per day, flexible programming lets you sync your comfort with your schedule.
• EASY-TO-USE-APP. Choose from the Total Connect Comfort app or the Honeywell Home app to control your WiFi thermostat anytime, anywhere.
• SMART HOME INTEGRATION. The Wi-Fi 7-Day is compatible with voice assistant devices like Amazon Alexa, Google Assistant, Microsoft Cortana, and more.
• SIMPLE INSTALL FOR A DIY PROJECT. The Wi-Fi 7-Day Programmable Thermostat is easy to configure and install yourself.
• EFFICIENCY AND REWARDS. The Wi-Fi 7-Day works with utility programs across the US to bring you even more savings.
• EASY OPERATION AND INTUITIVE. Big, backlit digital display and easy controls make for a user-friendly experience.
• SMART ALERTS HELP YOU WORRY LESS. Get air filter change reminders, temperature notifications, internet connection alerts, and more.
• LEARNS YOUR COMFORT LEVELS. Smart Response feature learns your home's cycles to help deliver the right temperature.
• ENERGY STAR CERTIFIED. Honeywell Home Wi-Fi thermostats are energy-efficient without sacrificing performance.
• HELPS SAVE MONEY AND ENERGY. You can program energy savings when you’re away and comfort when you return.

Honeywell Home

• Backlit display for easy viewing
• Precise temperature control of +/- 1°F
• Separate programs for the weekdays and weekends with 4 program periods per day
• For use with central gas, oil, or electric furnaces & AC
• For millivolt systems
• Battery change reminder
• Retains memory in event of power outage

Honeywell Home

• Easy-to see and read. large, clear backlit digital display
• Standard display size 1.5 square inches
• Easy-access battery replacement door
• 1 Heat/1 Cool Conventional and Heat Pump
• Dual-powered (battery and/or hardwire)

Honeywell Home

• Flexible programming: 7 - Day, 5-2 Day or one week programming
• Indoor humidity readout
• Compatible with most systems
• Sleek touchscreen with cool blue backlight makes it easy to read
• Smart response learning

Honeywell Home

• Beautiful and contemporary design complements any décor, with large display and warm backlight for easy viewing even from across the room
• Early start mode ensures the desired temperature is reached by the programmed time, making for a comfortable home whenever you need it
• 7-Day programmability: program each day individually with up to 4 programming periods. This thermostat is not compatible with base board heaters (or other line voltage heating), multi-stage heating or cooling systems, or 3-wire hydronic systems
• Copy feature (from day to day), as well as permanent and temporary hold mode, reduces programming time and makes it easy to use
• Accurate temperature readings - to +/- 1 degree in Fahrenheit and Celsius - for ultimate consistent control
• One-stage thermostat that works with gas, oil or electric furnaces, central air conditioners, 2 wire hot water systems, millivolt systems, central heating and cooling systems, and heat pumps without auxiliary/backup heat.

Orbit

• Separate programming for the weekdays and weekends; up to 4 program periods per day
• Saves energy with personalized temperature control
• Compatible with electric baseboards (120-240V), convectors, and radiant ceilings. Product dimensions (WxDxH):4.8 x 1.2 x 5 inches
• TRIAC silent switching for accurate temperature control of +/-0.5°F.Storage temperature:-4°F to 120°F (-20°C to 50°C)
• Fast, easy, two-wire installation. High capacity, up to 3,500 watts at 240 volts.

Honeywell Home

• One program for the entire week-4 periods per day. This product is easy to use
• Digital display. This product is highly durable and and easy to handle
• Compatible with heating, cooling and heat pumps without auxiliary heat. Does not work with electric baseboard heat (120-240V) multistage HVAC systems
• Accurate temperature control of +/-1-Degree F for consistent comfort.Do not use Cooling mode when the outdoor temperatureis below 50 °F (10 °C)
• Display options: Fahrenheit or Celsius temperature display, 12 or 24 hour clock
• This product is manufactured in China. Not compatible with electric baseboard heat and multistage HVAC systems

Honeywell Home

• Universal compatibility for all system types. Large, lighted easy-to-read touchscreen display. It is compatible with virtually all North American heating and cooling systems apart from systems with electric baseboard heat (120 or 240 volt) and systems with 2-cooling stages
• Biggest size display, Easy-to-use touchscreen menu operation.
• User-selectable periods per day (2 or 4), Programmable touch pad lockout for unauthorized users
• Adjustable heat/cool set temperature limit stops, Energy usage monitor. Refer user manual below
• Programmable air filter life timer, Temporary temperature override, Adjustable temperature differential (swing).

Lux Products