
Emerson Sensi Pro
Score: 83/100
ecobee Smart Thermostat Enhanced
Score: 86/100Rankings

The ecobee Smart Thermostat Enhanced delivers up to 26% energy savings, geofencing and radar occupancy detection with a vibrant 4-inch touchscreen. It lacks air-quality monitoring and multi-zone support, which may limit advanced users. Ideal for single-zone homeowners seeking strong energy-saving features and wide smart-home integration.

The Emerson Sensi Pro is a Wi-Fi and Bluetooth-enabled thermostat with a touchscreen LCD, offering broad HVAC compatibility and robust smart-home integration. Its main drawbacks are the need for a C-wire for certain features and lack of battery backup, limiting installation flexibility. Ideal for homeowners seeking extensive features and a long warranty.
| Attribute | ![]() | ![]() |
|---|---|---|
5 yearsbest | 3 years | |
— | 4 inchbest | |
| ↓ lower better | 0.336 kg | 0.24 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
General(2) | ||
HVAC Compatibility | Single/multi-stage gas, oil, electric, heat pump (up to 4H/2C), dual fuel, boiler, cool‑only, AC with AUX heat | 24 VAC systems (gas/oil/electric furnaces, dual fuel, forced air, heat pump, boilers) |
Warranty (years) | 5 years | 3 years |
Connectivity(1) | ||
Smart Home Integration | Amazon Alexa, Google Assistant, Apple HomeKit, Samsung SmartThings | Siri, Alexa, Google Assistant, Apple HomeKit, SmartThings, IFTTT |
Power & Installation(2) | ||
C‑Wire Requirement | true | false |
Power Source | Battery, Hardwire/Common, Power Sharing | HVAC system wiring with optional Power Extender Kit |
Build & Design(2) | ||
Device Weight (kg) | 0.336 kg | 0.24 kg |
Device Dimensions (H×W×D) (mm) | 25.4×149.35×95.25 mm mm | 103.89x103.89x23.88 mm |

Products in the top-left offer the best value (high score, low price).

Professional reviewers and editors commend the Sensi Touch 2 for its straightforward, app-driven installation, robust smart-home ecosystem compatibility, and contractor-focused features such as batch registration and keypad lockout. Its energy-saving functions and 5-year warranty further bolster its reputation, earning it an Editors' Choice accolade. The primary criticisms revolve around the need for a C-wire for HomeKit and the absence of battery backup.
Consumers generally praise the thermostat's remote access, intuitive scheduling, and useful humidity and temperature alerts. Recurring complaints focus on the requirement for a C-wire in some setups and the limitation to 2.4 GHz Wi-Fi, as well as the lack of battery backup during power outages.

“Very user-friendly with many features; compact and attractive on the wall; effortless control and energy savings (pays for itself quickly).”



Professional reviewers commend the Enhanced model for its proven energy-efficiency, radar-based occupancy detection and extensive voice-assistant integrations, calling it a trusted, planet-friendly choice. They note, however, that it misses premium features such as air-quality monitoring and bundled remote sensors, and that installation can be a bit daunting for novices.
Everyday users appreciate the thermostat's intuitive touchscreen, sleek compact look and the quick payoff from energy savings, describing it as very user-friendly. Common frustrations revolve around the need to follow detailed setup instructions and the lack of extra sensors found in higher-end models.