Air Quality Monitors · Head to head

Amazon Smart Air Quality Monitor vs Apollo MSR-2 with CO2

Full Smart Air Quality Monitors comparison in 2026

Updated June 2026
Data from Amazon and official Apollo Automation site.
2026 verdict
Across the 2026 comparison, Apollo MSR-2 with CO2 earns the nod over Amazon Smart Air Quality Monitor on the strength of price, sensors, and alerts. It has the clearer edge on price, sensors, and alerts, and it stays ahead on its broader overall balance. Choose Amazon Smart Air Quality Monitor only if connectivity and integrations matter more to you than the broader advantage from Apollo MSR-2 with CO2. For the average buyer, Apollo MSR-2 with CO2 is the safer choice.
vs
FeatureAmazon Smart Air Quality MonitorApollo MSR-2 with CO2Winner
Price$69.99$56.09Apollo MSR-2 with CO2
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFiAmazon Smart Air Quality Monitor
IntegrationsAlexa, Home AssistantHome AssistantAmazon Smart Air Quality Monitor
SensorsTVOC, PM2.5, CO, Temperature, HumidityCO2, Temperature, Atmospheric Pressure, Ambient Light, UV, OccupancyApollo MSR-2 with CO2
AlertsAir Quality AlertsTemperature Alerts, Air Quality AlertsApollo MSR-2 with CO2
Weather ResistanceNONOTie
ScreenNONOTie
Winner
Apollo Automation

Apollo MSR-2 with CO2

$56.09
Buy on Official Store
  • + Price: $56.09
  • + Sensors: CO2, Temperature, Atmospheric Pressure, Ambient Light, UV, Occupancy
  • + Alerts: Temperature Alerts, Air Quality Alerts
  • - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth
  • - Integrations: Home Assistant vs Alexa, Home Assistant

Frequently Asked Questions

Which is better overall: Amazon Smart Air Quality Monitor or Apollo MSR-2 with CO2?

Apollo MSR-2 with CO2 has the stronger overall profile in this comparison, especially for price, sensors, and alerts.

What is the biggest difference between Amazon Smart Air Quality Monitor and Apollo MSR-2 with CO2?

Price is one of the clearest differences: Amazon Smart Air Quality Monitor lists $69.99, while Apollo MSR-2 with CO2 lists $56.09.

Which one looks better on price?

Amazon Smart Air Quality Monitor is listed at $69.99, while Apollo MSR-2 with CO2 is listed at $56.09. Apollo MSR-2 with CO2 (better spec).

Who should buy Amazon Smart Air Quality Monitor?

Choose Amazon Smart Air Quality Monitor 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 sensors and that matters more than connectivity.

More Air Quality Monitors

Top Air Quality Monitors to compare next

Compare top smart air quality monitors by connectivity, sensors, integrations, alerts, and more. Find the best one for your home.

Compare Air Quality Monitors
Amazon

More Amazon products

A sharper look at other Amazon products worth comparing.

Explore Amazon
Apollo Automation

More Apollo Automation products

A sharper look at other Apollo Automation products worth comparing.

Explore Apollo Automation
Stay in the loop

Smart Home Deals & News straight to your inbox

Join the newsletter and get the best smart home deals and new releases in your inbox.

Your subscription could not be saved. Please try again.
Your subscription has been successful.

Smart Home Deals & News straight to your inbox

Join the newsletter and get the best smart home deals and new releases in your inbox.

Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search