ecobee3 Smarter
Score: 84/100
Google Nest Learning Thermostat
Score: 87/100Rankings
The Nest Learning Thermostat 4th gen offers advanced learning algorithms, a large high-resolution touchscreen, and broad Matter and voice-assistant integration. Its premium price and single-zone limitation are notable trade-offs. Best suited for users who want a hands-off, feature-rich thermostat within the Google ecosystem.
The ecobee3 Smarter thermostat provides a 3.5-inch color touchscreen and a suite of built-in sensors for precise climate control, along with broad 24 V HVAC compatibility and optional Power Extender Kit. It requires a C-wire or additional kit and uses older 2.4 GHz Wi-Fi, which may limit some setups. Best suited for users wanting multi-zone sensing and Apple ecosystem integration.
| Attribute | | |
|---|---|---|
3 yearsbest | — | |
3.5 inchbest | 2.68 inch | |
| ↓ lower better | 0.612 kg | 0.162 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
General(1) | ||
HVAC Compatibility | ~95% of 24V systems (conventional 2H/2C, heat pump 4H/2C, gas/oil/electric/dual fuel, humidifier/dehumidifier/ventilator/HRV/ERV) | Up to 3 heating stages, 2 cooling stages, heat pump with auxiliary and emergency heat |
Connectivity(2) | ||
Wi‑Fi Standard | 802.11 b/g/n (2.4 GHz) | 802.11n |
Smart Home Integration | Apple HomeKit, Amazon Alexa, Google Assistant | Matter, Google Home, Amazon Alexa |
Power & Installation(2) | ||
C‑Wire Requirement | true | false |
Power Source | 24 VAC | HVAC system wiring with rechargeable lithium battery |
Display(3) | ||
Display Type | color touchscreen | Circular touchscreen |
Screen Size (inch) | 3.5 inch | 2.68 inch |
Resolution | 320x480 pixels | 600x600 |
Build & Design(2) | ||
Device Weight (kg) | 0.612 kg | 0.162 kg |
Device Dimensions (H×W×D) (mm) | 23.6×100.3×100.3 mm mm | 3.9x3.9x1.1 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Ecobee3 for its comprehensive sensor suite that enables smart recovery and precise humidity management, as well as its extensive HVAC compatibility that covers most 24V systems. They note its value for multi-zone comfort without a hub, while pointing out the need for a C-wire or Power Extender Kit and the lack of newer Wi-Fi standards compared to later models.
Everyday users praise the thermostat for its straightforward installation and reliable Wi-Fi control, especially appreciating the seamless Siri and HomeKit integration. The most common feedback revolves around occasional wiring difficulties in homes without a C-wire, but overall sentiment is highly positive.
“ease of install and Wi-Fi control”
“seamless Siri/HomeKit remote access”
The Nest Learning Thermostat (4th gen) is Google's flagship smart thermostat featuring a 60% larger circular touchscreen, built-in machine-learning that auto-adjusts schedules, and seamless integration with Google Home, Matter, and Alexa for remote and voice control.
60% larger 2.7-inch circular touchscreen provides clearer readout from across the room; Dynamic Farsight automatically brightens the display for visibility and can be manually overridden; Built-in machine-learning adapts heating and cooling schedules to occupants' habits without manual programming; Auto-Away mode detects when the home is empty and adjusts temperature to save energy; Integrated Wi-Fi and Matter support enables remote control via Google Home app, voice assistants, and other smart-home ecosystems
