Airthings Wave Mini vs Airthings Wave Plus

The Airthings Wave Mini takes the narrow overall win on price and battery life, running about 2 years per battery set. The Airthings Wave Plus earns a higher owner rating and measures far more, six sensors including radon and CO2 versus the Mini's three, so the better pick depends on whether you need radon and CO2.

Sensor count. The Airthings Wave Mini measures VOCs, temperature, humidity and a mold-risk indicator. The Airthings Wave Plus keeps those and adds radon, CO2 and atmospheric pressure, six sensors in total, which is the main reason to pay more.

Both are Bluetooth-only, so on their own they update only when you open the app nearby. To get continuous recording and remote access, the Airthings Wave Mini and Airthings Wave Plus each need an Airthings hub (or a View Plus acting as one). Neither has a screen.

The Airthings Wave Mini runs about 2 years on batteries, a little longer than the roughly 1.5 years of the Airthings Wave Plus. Both carry the same 5-year warranty and the same Google Home, Alexa, Home Assistant and IFTTT support.

Choose the Airthings Wave Mini if you want an affordable VOC, humidity and mold-risk sensor for a single room or as an extra unit in an Airthings setup, and you do not need radon or CO2.

Choose the Airthings Wave Plus if you want radon and CO2 alongside VOCs in one six-sensor monitor, accept slightly shorter battery life, and value the broader picture for whole-home air quality and tracking a radon mitigation system.