Ecobee Smart Thermostat Premium vs X-Sense XR0A-iR Wi-Fi Radon Detector

Updated September 2026

Data from Amazon and official Ecobee and X-Sense sites.

2026 verdict

Two very different air quality monitors: one is a thermostat that also tracks CO2 and VOCs, the other is a dedicated radon detector.

Winner

Ecobee Smart Thermostat Premium

$149.63$204.9727% OFF

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The Ecobee Smart Thermostat Premium wins this matchup on breadth, connecting to more smart home platforms and covering more pollutants overall, including occupancy detection alongside CO2 and TVOC. The X-Sense XR0A-iR Wi-Fi Radon Detector answers back with the one job the Ecobee cannot do at all: dedicated radon monitoring, backed by a longer warranty, a lower price and a stronger owner rating. Anyone replacing a thermostat anyway, or wanting CO2 and TVOC tracking wired straight into their HVAC system, gets more from the Ecobee Smart Thermostat Premium's wider platform support (Google Home, Alexa, Apple HomeKit, SmartThings and Home Assistant) and its color touchscreen. Anyone specifically worried about radon, a gas the Ecobee does not measure at all, should pick the X-Sense XR0A-iR Wi-Fi Radon Detector instead, especially since it runs untethered on AA batteries rather than needing a hardwired install.

Winner

Ecobee

Ecobee Smart Thermostat Premium

27% OFF

$149.63

$204.97

Buy on Amazon USACheck price

X-Sense

X-Sense XR0A-iR Wi-Fi Radon Detector

20% OFF

$79.99

$99.99

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Feature	Ecobee Smart Thermostat Premium	X-Sense XR0A-iR Wi-Fi Radon Detector	Winner
Price	$149.63	$79.99	X-Sense XR0A-iR Wi-Fi Radon Detector
Rating	4.5	4.6	X-Sense XR0A-iR Wi-Fi Radon Detector
Warranty	3 years	5 years	X-Sense XR0A-iR Wi-Fi Radon Detector
Connectivity	2.4 GHz WiFi, 5 GHz WiFi, Bluetooth	2.4 GHz WiFi	Ecobee Smart Thermostat Premium
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant	None	Ecobee Smart Thermostat Premium
Sensors	TVOC, CO2, Temperature, Humidity, Occupancy	Radon, Temperature, Humidity	Ecobee Smart Thermostat Premium
Weather Resistance	NO	NO	Tie
Screen	YES	YES	Tie
Alerts	Temperature Alerts, Air Quality Alerts	Air Quality Alerts, Low Battery Alerts	Tie

Winner

Ecobee

Ecobee Smart Thermostat Premium

27% OFF

$149.63

$204.97

Buy on Amazon USACheck price

+ Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant
+ Sensors: TVOC, CO2, Temperature, Humidity, Occupancy
- Price: $149.63 vs $79.99
- Rating: 4.5 vs 4.6

X-Sense

X-Sense XR0A-iR Wi-Fi Radon Detector

20% OFF

$79.99

$99.99

Buy on Amazon USACheck price

+ Price: $79.99
+ Rating: 4.6
+ Warranty: 5 years
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
- Integrations: None vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant

Frequently Asked Questions

Which is better overall: the Ecobee Smart Thermostat Premium or the X-Sense XR0A-iR Wi-Fi Radon Detector?

The Ecobee Smart Thermostat Premium wins on connectivity, integrations and sensors, thanks to a wider spread of smart home platforms and pollutant sensors including CO2, TVOC and occupancy. The X-Sense XR0A-iR Wi-Fi Radon Detector counters with a lower price, a longer warranty and a higher owner rating, plus the radon sensing the Ecobee lacks entirely.

What is the biggest structural difference between these two?

The Ecobee Smart Thermostat Premium is a hardwired thermostat that happens to include air quality sensors, while the X-Sense XR0A-iR Wi-Fi Radon Detector is a single-purpose, battery-powered radon instrument. One replaces your thermostat; the other sits on a shelf running on AA batteries.

Does the Ecobee Smart Thermostat Premium detect radon?

No. It measures CO2, TVOC, temperature, humidity and occupancy, but has no radon sensor at all. Only the X-Sense XR0A-iR Wi-Fi Radon Detector in this comparison measures radon.

Which one works with more smart home platforms?

The Ecobee Smart Thermostat Premium, by a wide margin: it supports Google Home, Alexa, Apple HomeKit, SmartThings and Home Assistant. The X-Sense XR0A-iR Wi-Fi Radon Detector has no confirmed platform integrations.

Who should buy the Ecobee Smart Thermostat Premium?

Anyone who needs a new thermostat and wants CO2, TVOC and occupancy tracking built into the same device, with broad smart home platform support.

Who should buy the X-Sense XR0A-iR Wi-Fi Radon Detector?

Anyone specifically concerned about radon who wants a dedicated, portable, battery-powered detector at a lower price with a longer warranty.

Full comparison table

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