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AI SCORE
/ 100
Lennox iComfort S40 (2023) is a budget-friendly option in smart thermostats, scoring 24/100 on our AI engine. It features a 7" display. Priced around $375, it competes in the mid-range tier.
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The Lennox 22V24 iComfort S40 Smart Thermostat is a sleek and modern addition to any home, designed to enhance your heating and cooling experience. With its vibrant WiFi touchscreen interface, the S40 offers intuitive navigation and easy access to all its features. The design is both stylish and functional, seamlessly blending into your home decor while providing a user-friendly experience. The large display allows for clear visibility, making it simple to adjust settings at a glance.
Performance-wise, the iComfort S40 excels in energy efficiency, helping you save on utility bills while maintaining optimal comfort levels. Its advanced sensors monitor temperature and humidity, automatically adjusting your home's climate to ensure a cozy environment year-round. The thermostat also integrates with smart home systems, allowing for voice control and remote access via your smartphone. Key features include customizable scheduling, energy usage reports, and alerts for filter changes, ensuring your HVAC system runs smoothly.
Despite its impressive features, the Lennox 22V24 iComfort S40 has received an overall score of 4.8/10, indicating that while it offers significant benefits, there may be areas for improvement. For those looking to upgrade their home’s climate control, this thermostat is a solid choice that combines modern technology with practical functionality.
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The Lennox 22V24 iComfort S40 Smart Thermostat is ideal for tech-savvy homeowners who prioritize convenience and energy efficiency. It's perfect for busy professionals looking to optimize their home environment or families wanting to manage heating and cooling costs. However, while the price is competitive, performance and battery life may not meet the expectations of heavy users or those in extreme climates. Consider your specific needs before purchasing, as this thermostat excels in smart features but has tradeoffs in performance.
AI-generated expert assessment · Updated 2026
The Lennox iComfort S40 is a mid-range smart thermostat that earns a VersusMatrix overall score of 24/100, placing it in the entry-tier tier of the smart thermostats category for 2026. Priced around $375, it competes most directly with other mid-range smart thermostats where buyers weigh raw specifications against everyday usability.
Where the Lennox iComfort S40 stands out most clearly is performance (35/100) and battery (35/100). In daily use these strengths translate to a smart thermostat that holds up well under the workloads buyers in this price band typically demand.
The trade-offs sit primarily in value for money (7/100) and design and build (23/100). Buyers for whom those dimensions are deal-breakers should compare against pricier alternatives in the leaderboard — but for the majority of buyers in this price band, the trade-off is acceptable given the strengths above.
The Lennox iComfort S40 is worth considering for buyers shopping the $318-$432 smart thermostat market. For a head-to-head against the closest alternatives, browse the smart thermostats leaderboard and use the on-site comparison tool — the Lennox iComfort S40 is included in the default ranking when sorted by overall score.
First-time buyers in this category
Lennox iComfort S40 represents a solid entry to the Lennox ecosystem and the broader category — straightforward setup, well-documented support, established user community.
Is the Lennox iComfort S40 a good choice for first-time buyers in this category?
Yes, it's a solid fit. Lennox iComfort S40 represents a solid entry to the Lennox ecosystem and the broader category — straightforward setup, well-documented support, established user community.
Who is the Lennox iComfort S40 best suited for?
Based on its specs and scoring, the Lennox iComfort S40 is best suited for: First-time buyers in this category. See the use-case breakdown on this page for the reasoning behind each.
Reviewed by VersusMatrix Editorial Team
Last updated: May 10, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
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The Lennox 22V24 iComfort S40 Smart Thermostat is a sleek and modern addition to any home, designed to enhance your heating and cooling experience. With its vibrant WiFi touchscreen interface, the S40 offers intuitive navigation and easy access to all its features. The design is both stylish and fun...
The Lennox iComfort S40 has a 7" display (Color LCD touchscreen).
The Lennox iComfort S40 is priced at approximately $375. Check the buy links above for current prices from retailers.
The Lennox 22V24 iComfort S40 Smart Thermostat is ideal for tech-savvy homeowners who prioritize convenience and energy efficiency. It's perfect for busy professionals looking to optimize their home environment or families wanting to manage heating and cooling costs. However, while the price is competitive, performance and battery life may not meet the expectations of heavy users or those in extreme climates. Consider your specific needs before purchasing, as this thermostat excels in smart features but has tradeoffs in performance.
Yes, it's a solid fit. Lennox iComfort S40 represents a solid entry to the Lennox ecosystem and the broader category — straightforward setup, well-documented support, established user community.
Based on its specs and scoring, the Lennox iComfort S40 is best suited for: First-time buyers in this category. See the use-case breakdown on this page for the reasoning behind each.