Air Quality Monitors · Head to head

GoveeLife Smart Air Quality Monitor vs GoveeLife Smart Air Quality Monitor CO2 H5140

Full Smart Air Quality Monitors comparison in 2026

Updated October 2026
Data from the official Govee site.
2026 verdict
For a home office or bedroom that gets stuffy with the door closed, the GoveeLife Smart Air Quality Monitor CO2 H5140 is the better Govee air quality monitor to buy.
GoveeLife Smart Air Quality Monitor CO2 H5140
Winner
GoveeLife Smart Air Quality Monitor CO2 H5140
$69.99$89.9922% OFF
Buy on Amazon USA
It measures CO2 with an NDIR sensor that refreshes every 5 seconds, shows it on a 4.82 inch LED display, and adds Google Home to the Alexa and Home Assistant support both share. The GoveeLife Smart Air Quality Monitor tracks a different pollutant, PM2.5, which is what smoke, cooking and dust put in the air, and it is the lower priced of the two. Both run on USB-C power, read temperature and humidity, raise alerts and link to Govee appliances in the Govee Home app. Pick the GoveeLife Smart Air Quality Monitor CO2 H5140 to know when to open a window, and the GoveeLife Smart Air Quality Monitor to drive an air purifier when particles spike.
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FeatureGoveeLife Smart Air Quality MonitorGoveeLife Smart Air Quality Monitor CO2 H5140Winner
Price$39.98$69.99GoveeLife Smart Air Quality Monitor
Rating4.34.4GoveeLife Smart Air Quality Monitor CO2 H5140
IntegrationsAlexa, Home AssistantGoogle Home, Alexa, Home AssistantGoveeLife Smart Air Quality Monitor CO2 H5140
Warranty1 year1 yearTie
Weather ResistanceNONOTie
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, BluetoothTie
ScreenYESYESTie
SensorsPM2.5, Temperature, HumidityCO2, Temperature, HumidityTie
AlertsTemperature Alerts, Humidity Alerts, Air Quality AlertsTemperature Alerts, Humidity Alerts, Air Quality AlertsTie

What the differences mean

Which pollutant it measures

This is the whole decision. The GoveeLife Smart Air Quality Monitor CO2 H5140 measures carbon dioxide, which tells you a room needs fresh air. The GoveeLife Smart Air Quality Monitor measures PM2.5, the fine particles from smoke, cooking and dust. Neither measures both, and neither is a carbon monoxide alarm.

Smart home platforms

Both work with Alexa and Home Assistant. The GoveeLife Smart Air Quality Monitor CO2 H5140 adds Google Home, which the GoveeLife Smart Air Quality Monitor lacks. Neither supports Apple Home, SmartThings or Matter.

Display

The GoveeLife Smart Air Quality Monitor CO2 H5140 has a 4.82 inch LED display showing CO2, temperature, humidity and the time. The GoveeLife Smart Air Quality Monitor has a smaller LED readout that switches between a clock and live air quality.

History

The GoveeLife Smart Air Quality Monitor CO2 H5140 keeps 20 days of records in the app and the GoveeLife Smart Air Quality Monitor 13 days. Both keep about 2 years of data you can export, so the gap only matters if you scroll the in-app charts.

Which one to buy if

What owners say

Owners of both Govee monitors praise the same things: a display easy to read from across a room, quick setup in the Govee Home app and automations that switch on a Govee appliance by themselves. What they notice is different. GoveeLife Smart Air Quality Monitor owners describe PM2.5 readings that jump when food burns or someone smokes and a purifier that ramps up before anyone opens the app, while their complaints are about narrow platform support and the occasional wrong regional plug. GoveeLife Smart Air Quality Monitor CO2 H5140 owners tell a story of discovery: a closed office climbing past 1000 ppm during long meetings and feeling more alert once they ventilate. Their warnings are about 2.4 GHz Wi-Fi pairing and range trouble, in-app history tied to the unit, and a price some find high for a single gas.

Frequently Asked Questions

Which is better overall: GoveeLife Smart Air Quality Monitor or GoveeLife Smart Air Quality Monitor CO2 H5140?

The GoveeLife Smart Air Quality Monitor CO2 H5140 for most buyers. It is the better reviewed of the two, adds Google Home support and measures CO2 with a fast NDIR sensor. The GoveeLife Smart Air Quality Monitor is the better choice if PM2.5 from smoke or cooking is what you want to track.

Which GoveeLife monitor measures CO2?

Only the GoveeLife Smart Air Quality Monitor CO2 H5140. The GoveeLife Smart Air Quality Monitor measures PM2.5, temperature and humidity, with no CO2 sensor.

What is the difference between Govee and GoveeLife air quality monitors?

Both the GoveeLife Smart Air Quality Monitor and the GoveeLife Smart Air Quality Monitor CO2 H5140 are made by Govee and set up in the same Govee Home app. The real difference between them is the sensor: PM2.5 on the first, CO2 on the H5140.

Do the GoveeLife Smart Air Quality Monitor and the GoveeLife Smart Air Quality Monitor CO2 H5140 work with Home Assistant?

Yes, both work with Home Assistant through Bluetooth, and both work with Alexa. Only the GoveeLife Smart Air Quality Monitor CO2 H5140 also works with Google Home, and neither supports Apple Home or Matter.

Who should buy the GoveeLife Smart Air Quality Monitor?

Anyone who wants to watch fine particles from cooking, smoke or dust and let a Govee air purifier, humidifier or heater react automatically, at the lower price of the pair.

Who should buy the GoveeLife Smart Air Quality Monitor CO2 H5140?

People who spend long hours in a closed office or bedroom and want a large, readable CO2 display with threshold alarms, Google Home or Alexa support and a reminder to ventilate.

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