Alarm.com Smart Thermostat
Score: 78/100
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 Alarm.com Smart Thermostat is a Z-Wave-enabled thermostat featuring a high-resolution color touchscreen and machine-learning HVAC health monitoring. Its main drawbacks are the required Alarm.com subscription, mandatory C-wire, and a limited operating temperature range. It is best suited for existing Alarm.com security customers who want deep integration and humidity control.
| Attribute | | |
|---|---|---|
— | 2.68 inchbest | |
| ↓ lower better | 0.14 kgbest | 0.162 kg |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
General(1) | ||
HVAC Compatibility | Heat up to 3 stages, Cool up to 2 stages, Heat pump (O/B), Fan (G), Humidifier/dehumidifier/vent (Z1/Z2 configurable) | Up to 3 heating stages, 2 cooling stages, heat pump with auxiliary and emergency heat |
Connectivity(1) | ||
Smart Home Integration | Alarm.com, Z-Wave | 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(1) | ||
Display Type | color touchscreen | Circular touchscreen |
Build & Design(2) | ||
Device Weight (kg) | 0.14 kg | 0.162 kg |
Device Dimensions (H×W×D) (mm) | 50.8×203.2×203.2 mm mm | 3.9x3.9x1.1 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the thermostat's seamless integration with Alarm.com, noting the built-in Z-Wave hub reduces hardware clutter and the machine-learning HVAC monitoring provides valuable early-warning alerts. They also praise the sleek touchscreen design and straightforward installation, while cautioning that the product requires an Alarm.com service subscription and has a limited temperature operating range.
Everyday users appreciate the convenience of remote app control, real-time alerts, and the ability to manage humidity, but they commonly express frustration over the mandatory C-wire requirement and the need for an ongoing Alarm.com subscription to unlock full features.
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
