Air Quality Monitors · Head to head

Airthings Wave Plus vs Apollo MSR-2 with CO2

Full Smart Air Quality Monitors comparison in 2026

Updated September 2026
Data from Amazon and official Airthings and Apollo Automation sites.
2026 verdict
In 2026, the recommendation leans toward Airthings Wave Plus over Apollo MSR-2 with CO2, driven by connectivity, integrations, and alerts.
Airthings Wave Plus
Winner
Airthings Wave Plus
$230.67$249.998% OFF
Buy on Amazon USA
It has the clearer edge on connectivity, integrations, and alerts, and it stays ahead on its broader overall balance. The only strong reason to choose Apollo MSR-2 with CO2 is if price is more important to you than the overall verdict. That is why the final call still favors Airthings Wave Plus.
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FeatureAirthings Wave PlusApollo MSR-2 with CO2Winner
Price$230.67$56.09Apollo MSR-2 with CO2
ConnectivityBluetooth, Other2.4 GHz WiFiAirthings Wave Plus
IntegrationsGoogle Home, Alexa, Home AssistantHome AssistantAirthings Wave Plus
AlertsTemperature Alerts, Humidity Alerts, Air Quality AlertsTemperature Alerts, Air Quality AlertsAirthings Wave Plus
Weather ResistanceNONOTie
ScreenNONOTie
SensorsTVOC, CO2, Radon, Temperature, Humidity, Atmospheric PressureCO2, Temperature, Atmospheric Pressure, Ambient Light, UV, OccupancyTie
Winner
Airthings

Airthings Wave Plus

8% OFF
$230.67
$249.99
Buy on Amazon USA
  • + Connectivity: Bluetooth, Other
  • + Integrations: Google Home, Alexa, Home Assistant
  • + Alerts: Temperature Alerts, Humidity Alerts, Air Quality Alerts
  • - Price: $230.67 vs $56.09

Frequently Asked Questions

Which is better overall: Airthings Wave Plus or Apollo MSR-2 with CO2?

Airthings Wave Plus has the stronger overall profile in this comparison, especially for connectivity, integrations, and alerts.

What is the biggest difference between Airthings Wave Plus and Apollo MSR-2 with CO2?

Price is one of the clearest differences: Airthings Wave Plus lists $230.67, while Apollo MSR-2 with CO2 lists $56.09.

Which one looks better on price?

Airthings Wave Plus is listed at $230.67, while Apollo MSR-2 with CO2 is listed at $56.09. Apollo MSR-2 with CO2 (better spec).

Who should buy Airthings Wave Plus?

Choose Airthings Wave Plus if your priority is connectivity and integrations and that matters more than price.

Who should buy Apollo MSR-2 with CO2?

Choose Apollo MSR-2 with CO2 if your priority is price and that matters more than connectivity.

Full comparison table

Compare all 32 Air Quality Monitors side by side

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  • 32 Air Quality Monitors
  • 54 specs compared
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