Airthings Wave Plus vs Aranet4 HOME

Airthings Wave Plus wins on the overall package: six sensors including radon and VOCs, a 5-year warranty, four platform integrations and an optional hub for remote data. Aranet4 HOME answers with a higher owner rating, a crisp e-ink display, years more battery life and benchmark CO2 accuracy.

Scope. The Airthings Wave Plus tries to watch everything: radon, CO2, VOCs, temperature, humidity and pressure. The Aranet4 HOME does one thing brilliantly, CO2 for ventilation, plus temperature, humidity and pressure, on a display you can read across the room. Only the Airthings covers radon and VOCs.

The Aranet4 HOME is the reference for consumer CO2 sensing, with an NDIR sensor owners compare to professional instruments and recalibrate at will. The Airthings Wave Plus gives useful CO2 trends within its six-sensor picture, but CO2 specialists consistently favor the Aranet.

The Aranet4 HOME has an always-on e-ink screen and runs up to 4 years on two AA cells. The Airthings Wave Plus has no screen, using a wave-activated color ring plus the app, and runs about 1.5 years per battery set.

Choose Airthings Wave Plus if you want radon in the picture along with CO2 and VOCs, prefer Google Home, Alexa, Home Assistant and IFTTT support, and value the 5-year warranty. Add an Airthings Hub if you want the data available remotely.

Choose Aranet4 HOME if ventilation is your focus and you want the most trusted portable CO2 monitor: instant readability, superb accuracy, up to 4 years of battery life and Home Assistant support, in a size you can carry to the office or on a plane.