AirGradient Open Air vs Airthings Wave Plus (2026)

Updated September 2026

Data from Amazon and official AirGradient and Airthings sites.

2026 verdict

Across the 2026 comparison, AirGradient Open Air earns the nod over Airthings Wave Plus on the strength of price, weather resistance, and sensors.

Winner

AirGradient Open Air

$190.00

Buy on Official StoreCheck price

Its strongest advantages show up in price, weather resistance, and sensors, with its broader overall balance helping widen the gap. There is still a case for Airthings Wave Plus, but mainly if warranty and integrations are what you value most. For most setups, AirGradient Open Air is the smarter buy.

Winner

AirGradient

AirGradient Open Air

$190.00

Buy on Official StoreCheck price

Airthings

Airthings Wave Plus

$249.99

Buy on Amazon USACheck price

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Feature	AirGradient Open Air	Airthings Wave Plus	Winner
Price	$190.00	$249.99	AirGradient Open Air
Warranty	1 year	5 years	Airthings Wave Plus
Weather Resistance	YES (Outdoor)	NO	AirGradient Open Air
Integrations	Home Assistant	Google Home, Alexa, Home Assistant	Airthings Wave Plus
Sensors	TVOC, PM0.3, PM1, PM2.5, PM10, CO2, NOx, Temperature, Humidity	TVOC, CO2, Radon, Temperature, Humidity, Atmospheric Pressure	AirGradient Open Air
Connectivity	2.4 GHz WiFi, Bluetooth	Bluetooth, Other	Tie
Screen	NO	NO	Tie
Alerts	Temperature Alerts, Humidity Alerts, Air Quality Alerts	Temperature Alerts, Humidity Alerts, Air Quality Alerts	Tie

Winner

AirGradient

AirGradient Open Air

$190.00

Buy on Official StoreCheck price

+ Price: $190.00
+ Weather Resistance: YES (Outdoor)
+ Sensors: TVOC, PM0.3, PM1, PM2.5, PM10, CO2, NOx, Temperature, Humidity
- Warranty: 1 year vs 5 years
- Integrations: Home Assistant vs Google Home, Alexa, Home Assistant

Airthings

Airthings Wave Plus

$249.99

Buy on Amazon USACheck price

+ Warranty: 5 years
+ Integrations: Google Home, Alexa, Home Assistant
- Price: $249.99 vs $190.00
- Weather Resistance: NO vs YES (Outdoor)

Frequently Asked Questions

Which is better overall: AirGradient Open Air or Airthings Wave Plus?

AirGradient Open Air has the stronger overall profile in this comparison, especially for price, weather resistance, and sensors.

What is the biggest difference between AirGradient Open Air and Airthings Wave Plus?

Price is one of the clearest differences: AirGradient Open Air lists $190.00, while Airthings Wave Plus lists $249.99.

Which one looks better on price?

AirGradient Open Air is listed at $190.00, while Airthings Wave Plus is listed at $249.99. AirGradient Open Air (better spec).

Who should buy AirGradient Open Air?

Choose AirGradient Open Air if your priority is price and weather resistance and that matters more than warranty.

Who should buy Airthings Wave Plus?

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

Full comparison table

Compare all 32 Air Quality Monitors side by side

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