Which smart thermostat offers the best energy savings for homeowners?
| Product ⇅ | Price ⇅ | Energy Consumption (watts) ⇅ | Temperature Range (°F / °C) ⇅ | Smart Assistant Compatibility ⇅ | Geofencing ⇅ | Remote Access ⇅ | Learning Capabilities ⇅ | Voice Control ⇅ |
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ecobee ecobee Smart Thermostat Enhanced (2022)
US
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£104.31 ≈ | Up to 3.5 VA | Desired 45 to 92°F (7 to 33°C); Operating 14 to 122°F (-10 to 50°C) | ✓ | ✓ | ✓ | ✓ | ✓ |
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The ecobee Smart Thermostat Enhanced (2022) is an ENERGY STAR certified smart thermostat with built-in radar occupancy sensors, eco+ energy-saving features, and a 4 in. touchscreen for on-device control. It supports major smart assistants, remote control via the ecobee app, geofencing and energy reports, and is powered by 24VAC with an included Power Extender Kit for easy installation. It suits homeowners who want automated energy savings plus smart-home integrations. ★ Ideal forIdeal for homeowners seeking top energy savings because it is ENERGY STAR certified, offers eco+ automated energy optimizations, learns routines with Schedule Assistant, and includes advanced occupancy sensing to reduce runtime. |
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Ecobee ecobee Smart Thermostat Premium (2022)
US
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£137.85 ≈ | Up to 3.5 VA | Desired 45 to 92 F, Display 40 to 100 F, Operating 14 to 122 F | ✓ | ✓ | ✓ | ✓ | ✓ |
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The ecobee Smart Thermostat Premium (2022) is an ENERGY STAR certified smart thermostat with built-in air quality monitoring, occupancy sensing, SmartSensor support, dual-band Wi‑Fi, and learning AI for automatic schedule optimization. It includes built-in voice assistants and detailed energy reports, suitable for homes wanting advanced automation and indoor air-quality features. ★ Ideal forHomeowners seeking the best energy savings benefit from the Premium's learning AI plus eco+ features and ENERGY STAR certification (saves up to 26%) which automatically optimizes temperature and schedules to reduce heating and cooling use. |
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Emerson Sensi Touch 2 (2023)
US
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£110.38 ≈ | — | — | ✓ | ✓ | ✓ | ✗ | ✓ |
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The Sensi Touch 2 (2023) is an ENERGY STAR certified Wi‑Fi smart thermostat with a large color touchscreen, optional remote room sensors, geofencing, usage reports, and wide HVAC compatibility (C‑wire required). It supports major voice assistants and remote app control, targeting homeowners who want precise temperature control and simple smart features without adaptive learning. ★ Ideal forSuitable for energy‑saving homeowners because it is ENERGY STAR certified, provides energy usage reports, geofencing, flexible scheduling, and remote access to reduce HVAC runtime. |
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Google Nest Nest Learning Thermostat (Gen 4)
US
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£170.64 ≈ | Less than 1 kWh/month | Operating 32°F to 104°F; Max cooling 90°F; Min heating 50°F | ✓ | ✓ | ✓ | ✓ | ✓ |
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The Nest Learning Thermostat (4th gen) is a Matter-certified smart thermostat with built-in temperature sensors, a larger display, and bundled Nest Temperature Sensor (2nd gen). It offers adaptive learning, Energy Star certification, power-sharing to avoid a C‑wire in most homes, and remote control via the Google Home app, suited for most 24V HVAC systems. ★ Ideal forHomeowners focused on energy savings - Energy Star certified with energy-saving features (Adaptive Eco, Natural heating and cooling) and low power use (less than 1 kWh/month) to reduce heating and cooling bills.
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Google Nest Nest Thermostat (2020)
US
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£59.61 ≈ | Less than 1 kWh/month | 0 to 40 C | ✓ | ✓ | ✓ | ✗ | ✓ |
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The Google Nest Thermostat (2020) is a compact, Wi‑Fi smart thermostat with energy-saving features like Eco mode, Savings Finder, and Nest Renew integration. It supports remote control through the Google Home app, occupancy sensing (geofencing), and voice control via smart assistants, making it suitable for homeowners seeking basic smart scheduling and remote management at a low price. ★ Ideal forIdeal for homeowners wanting energy savings through automated away detection and Eco/Savings Finder features and low power draw (less than 1 kWh/month). |
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Honeywell Home X2S WiFi Smart Thermostat
US
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£22.35 ≈ | — | — | ✓ | — | ✓ | ✗ | ✓ |
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Matter-certified, ENERGY STAR smart thermostat with Wi‑Fi control, scheduling, humidity monitoring, auto-away and utility program support; designed as an affordable, single-zone replacement compatible with most 24V HVAC systems. Suits homeowners wanting basic smart controls, app remote access, and multi‑assistant voice control without room sensors or learning features. ★ Ideal forHomeowners focused on energy savings who will use scheduled setpoints and auto-away-X2S is ENERGY STAR certified and supports scheduling and utility energy programs to reduce HVAC energy use. |
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