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Air Quality Monitors · Head to head

Airthings View Plus vs SONOFF SAWF-08P Air Quality Monitor

Full Smart Air Quality Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Airthings and Sonoff sites.
2026 verdict
Want one monitor for everything? The Airthings View Plus is the one built for that, packing seven sensors into a single unit.
Airthings View Plus
Winner
Airthings View Plus
$329.99
Buy on Amazon USACheck price
It measures radon, PM2.5 particulates, CO2, TVOC, temperature, humidity and atmospheric pressure, connects over Wi-Fi and Bluetooth for remote alerts, and can even act as a hub for other Airthings sensors. The SONOFF SAWF-08P Air Quality Monitor answers with a lower price, a higher owner rating, and native Matter that reaches Apple Home, Alexa, Google Home, SmartThings and Home Assistant with no hub, but it reads only CO2, temperature and humidity. Both track the same three basics. If you want the widest pollutant picture available, including radon, the View Plus earns its premium; if a simple CO2 number wired into a Matter smart home is all you need, the SONOFF is the better value.
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FeatureAirthings View PlusSONOFF SAWF-08P Air Quality MonitorWinner
Price$329.99$49.90SONOFF SAWF-08P Air Quality Monitor
Rating4.04.3SONOFF SAWF-08P Air Quality Monitor
Connectivity2.4 GHz WiFi, Bluetooth, Other2.4 GHz WiFiAirthings View Plus
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSONOFF SAWF-08P Air Quality Monitor
SensorsTVOC, PM2.5, CO2, Radon, Temperature, Humidity, Atmospheric PressureCO2, Temperature, HumidityAirthings View Plus
AlertsTemperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery AlertsTemperature Alerts, Humidity Alerts, Air Quality AlertsAirthings View Plus
Weather ResistanceNONOTie
ScreenYESYESTie

What the differences mean

Sensor count

The View Plus measures seven things: radon, PM2.5, CO2, TVOC, temperature, humidity and atmospheric pressure. The SAWF-08P measures three: CO2, temperature and humidity.

Connectivity

The View Plus connects over both Wi-Fi and Bluetooth for remote access and alerts. The SAWF-08P uses 2.4 GHz Wi-Fi only, enough for its native Matter support but with no Bluetooth fallback.

Power

The View Plus runs on 6 AA batteries with a battery-saving mode, or USB-C; the SAWF-08P must stay plugged in over USB-C with no battery option at all.

Smart home reach

The SAWF-08P's native Matter reaches Apple Home, Alexa, Google Home, SmartThings and Home Assistant with no hub. The View Plus works with Google Home, Alexa and Home Assistant, and can act as a hub for other Airthings sensors, but has no Apple Home, SmartThings or Matter support.

Display

The View Plus shows two chosen metrics on an unlit e-ink screen with a wave-to-check Good/Fair/Poor light. The SAWF-08P puts CO2, temperature and humidity together on a single lit LCD panel.

Which one to buy if

  • you want the widest pollutant picture in one device, radon included
    Airthings View Plus

    Seven sensors in one unit is what the SAWF-08P, at three, cannot match.

  • a simple CO2 number wired into Matter is all you need
    SONOFF SAWF-08P Air Quality Monitor

    It costs less and commissions natively into five platforms with no hub.

  • you're managing several Airthings sensors around the house
    Airthings View Plus

    It can act as a SmartLink hub for other Airthings devices, which the SAWF-08P cannot do.

  • your platform is Apple Home or SmartThings
    SONOFF SAWF-08P Air Quality Monitor

    Native Matter reaches both directly; the View Plus has no path into either.

Winner
Airthings

Airthings View Plus

$329.99
Buy on Amazon USACheck price
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Other
  • + Sensors: TVOC, PM2.5, CO2, Radon, Temperature, Humidity, Atmospheric Pressure
  • + Alerts: Temperature Alerts, Humidity Alerts, Air Quality Alerts, Low Battery Alerts
  • - Price: $329.99 vs $49.90
  • - Rating: 4.0 vs 4.3
Sonoff

SONOFF SAWF-08P Air Quality Monitor

$49.90
Buy on Amazon USACheck price
  • + Price: $49.90
  • + Rating: 4.3
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth, Other
  • - Sensors: CO2, Temperature, Humidity vs TVOC, PM2.5, CO2, Radon, Temperature, Humidity, Atmospheric Pressure

What owners say

Owners of both devices describe first setup as painless, with a usable reading within minutes. Past that, what each group singles out reflects the very different jobs the two do. Airthings View Plus owners are repeatedly surprised by how fast CO2 climbs overnight in a sealed home and value having radon alongside particulates and VOCs in one place, while some flag the premium price and a CO2 sensor that drifts and needs periodic fresh-air recalibration. SONOFF SAWF-08P Air Quality Monitor owners like how quickly it joins a Matter network with no separate hub and how legible the display is, though a few mention the rear-mounted USB-C port makes wall mounting awkward.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Airthings View Plus
  • SONOFF SAWF-08P Air Quality Monitor

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Frequently Asked Questions

Which is better overall: Airthings View Plus or SONOFF SAWF-08P Air Quality Monitor?

For the widest pollutant coverage, the Airthings View Plus, which measures seven things against the SONOFF SAWF-08P Air Quality Monitor's three, including radon and PM2.5 that the SONOFF cannot detect. For value and native Matter reach, the SONOFF SAWF-08P Air Quality Monitor wins instead.

What is the biggest difference between the Airthings View Plus and the SONOFF SAWF-08P Air Quality Monitor?

Sensor count. The Airthings View Plus measures radon, PM2.5, CO2, TVOC, temperature, humidity and atmospheric pressure. The SONOFF SAWF-08P Air Quality Monitor measures CO2, temperature and humidity only.

Does the SONOFF SAWF-08P Air Quality Monitor detect radon or particulates?

No, it measures CO2, temperature and humidity only. For radon and PM2.5, the Airthings View Plus is the one built to cover both.

Which one works with more smart home platforms?

The SONOFF SAWF-08P Air Quality Monitor, through native Matter reaching Apple Home, Alexa, Google Home, SmartThings and Home Assistant. The Airthings View Plus supports Google Home, Alexa and Home Assistant, and can act as a hub for other Airthings sensors.

Who should buy the Airthings View Plus?

Anyone who wants the broadest pollutant coverage in a single device, radon and PM2.5 included, and is willing to pay a premium and manage occasional recalibration for it.

Who should buy the SONOFF SAWF-08P Air Quality Monitor?

Buyers who want a focused, affordable CO2 reading that plugs straight into a Matter smart home, and don't need radon or particulate sensing.

Full comparison table

Compare all 32 Air Quality Monitors side by side

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