Air Quality Monitors · Head to head

Amazon Smart Air Quality Monitor vs SwitchBot Meter Pro (CO2 Monitor)

Full Smart Air Quality Monitors comparison in 2026

Updated October 2026
Data from Amazon and official SwitchBot site.
2026 verdict
CO2 or carbon monoxide, particles or a big screen?
SwitchBot Meter Pro (CO2 Monitor)
Winner
SwitchBot Meter Pro (CO2 Monitor)
$79.99

Last recorded price

Buy on Amazon USA
The SwitchBot Meter Pro (CO2 Monitor) is the pick of these two air quality monitors when you want to know when a room needs ventilation. It has a NDIR-style CO2 reading, a 3.6 inch LCD, battery or USB-C power and support for Alexa, Google Home, Apple Home, SmartThings and Home Assistant. The Amazon Smart Air Quality Monitor watches a different list: TVOC, PM2.5, carbon monoxide, temperature and humidity, with no screen, Alexa and Home Assistant support and air quality alerts. It also has the stronger sensor count. Choose the SwitchBot Meter Pro (CO2 Monitor) for a bedroom or home office, and the Amazon Smart Air Quality Monitor for an Alexa home wanting particulate and VOC routines.
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FeatureAmazon Smart Air Quality MonitorSwitchBot Meter Pro (CO2 Monitor)Winner
Price$69.99$79.99Amazon Smart Air Quality Monitor
Rating4.23.8Amazon Smart Air Quality Monitor
ScreenNOYESSwitchBot Meter Pro (CO2 Monitor)
IntegrationsAlexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSwitchBot Meter Pro (CO2 Monitor)
SensorsTVOC, PM2.5, CO, Temperature, HumidityCO2, Temperature, HumidityAmazon Smart Air Quality Monitor
AlertsAir Quality AlertsTemperature Alerts, Humidity Alerts, Low Battery AlertsSwitchBot Meter Pro (CO2 Monitor)
Warranty1 year1 yearTie
Weather ResistanceNONOTie
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, BluetoothTie

What the differences mean

What each one measures

The Amazon Smart Air Quality Monitor reads TVOC, PM2.5, carbon monoxide, temperature and humidity. The SwitchBot Meter Pro (CO2 Monitor) reads CO2, temperature and humidity only. Only the SwitchBot tells you when a closed room is getting stuffy, and only the Amazon sees smoke, dust and cooking fumes.

Screen

The SwitchBot has a 3.6 inch LCD showing its readings across a room. The Amazon monitor has no screen, so you read it through the Alexa app, a light or a voice update.

Power

The SwitchBot runs on 2 AA batteries or USB-C, so it can sit anywhere. The Amazon monitor needs a Micro USB cable, which ties it to an outlet.

Smart home platforms

The SwitchBot lists Google Home, Alexa, Apple Home, SmartThings and Home Assistant, with Matter through a SwitchBot Hub. The Amazon monitor lists only Alexa and Home Assistant, and it is only worth having with an Echo.

Alerts

The Amazon monitor raises air quality alerts. The SwitchBot lists low-battery alerts and temperature and humidity alerts that need a SwitchBot Hub, but no air quality alerts of its own.

Which one to buy if

Amazon

Amazon Smart Air Quality Monitor

Prime exclusive deal
$69.99

Last recorded price

Buy on Amazon USA
  • + Price: $69.99
  • + Rating: 4.2
  • + Sensors: TVOC, PM2.5, CO, Temperature, Humidity
  • - Screen: NO vs YES
  • - Integrations: Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Winner
SwitchBot

SwitchBot Meter Pro (CO2 Monitor)

Prime exclusive deal
$79.99

Last recorded price

Buy on Amazon USA
  • + Screen: YES
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Alerts: Temperature Alerts, Humidity Alerts, Low Battery Alerts
  • - Price: $79.99 vs $69.99
  • - Rating: 3.8 vs 4.2

What owners say

Owners of both monitors say the readings make invisible air problems visible, and both groups use them to decide when to ventilate or run a purifier. Amazon Smart Air Quality Monitor owners like plug-and-play Alexa setup, fast reaction to cooking, sanding or candles and routines that act on readings without IFTTT, and some credit it with catching a carbon monoxide leak. They complain that it is useless without an Echo, that the Alexa app is poor for graphs and exports, that threshold routines can fail and that VOC readings occasionally false alarm. SwitchBot Meter Pro (CO2 Monitor) owners single out the accurate CO2 sensor, the readable display, two years of history and strong Home Assistant support, while warning about partial Alexa exposure, a slow hub, updates every 20 to 30 minutes on battery and a few faulty units.

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.

  • Amazon Smart Air Quality Monitor
  • SwitchBot Meter Pro (CO2 Monitor)

Loading price history...

Frequently Asked Questions

Which is better overall: Amazon Smart Air Quality Monitor or SwitchBot Meter Pro (CO2 Monitor)?

The SwitchBot Meter Pro (CO2 Monitor), for ventilation: it measures CO2, has a large screen, runs on batteries and supports five platforms. The Amazon Smart Air Quality Monitor is better for particles, VOCs and carbon monoxide in an Alexa home.

What is the biggest difference between the Amazon Smart Air Quality Monitor and the SwitchBot Meter Pro (CO2 Monitor)?

The gases they measure. The Amazon Smart Air Quality Monitor tracks TVOC, PM2.5 and carbon monoxide, while the SwitchBot Meter Pro (CO2 Monitor) tracks CO2. Neither covers the other's main readings.

Which is battery operated, the Amazon Smart Air Quality Monitor or the SwitchBot Meter Pro (CO2 Monitor)?

The SwitchBot Meter Pro (CO2 Monitor) runs on 2 AA batteries, rated about a year, or on USB-C. The Amazon Smart Air Quality Monitor is powered by Micro USB only.

Do the Amazon Smart Air Quality Monitor and the SwitchBot Meter Pro (CO2 Monitor) measure carbon monoxide?

Only the Amazon Smart Air Quality Monitor measures carbon monoxide, and it is not a substitute for a certified CO alarm. The SwitchBot Meter Pro (CO2 Monitor) measures carbon dioxide, which is a different gas.

Who should buy the Amazon Smart Air Quality Monitor?

Alexa households that want an easy plug-in monitor of particulates, VOCs and carbon monoxide, and want routines to run a purifier or fan from its readings.

Who should buy the SwitchBot Meter Pro (CO2 Monitor)?

Home Assistant, Google Home or Apple Home users who want an accurate CO2 reading with a readable display and long history for a bedroom, classroom or home office.

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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