Aranet4 HOME vs SONOFF SAWF-08P Air Quality Monitor

For most smart home setups, the SONOFF SAWF-08P Air Quality Monitor is the stronger pick: it costs less and its native Matter support reaches Apple Home, Alexa, Google Home, SmartThings and Home Assistant without extra hardware. The Aranet4 HOME rates higher with owners and adds an atmospheric pressure sensor, but it only integrates with Home Assistant and has no Wi-Fi or Matter of its own.

Portability and power. The Aranet4 HOME is a battery-powered, pocketable device that runs for years on two AA cells and shows readings on an E-Ink screen, making it easy to carry between rooms or take on a trip. The SONOFF SAWF-08P Air Quality Monitor is mains-powered over USB-C with a fixed LCD display, so it stays in one spot but never needs a battery change.

Almost. Both the Aranet4 HOME and the SONOFF SAWF-08P Air Quality Monitor use an NDIR CO2 sensor and also track temperature and humidity. The Aranet4 HOME adds atmospheric pressure, which the SONOFF SAWF-08P Air Quality Monitor lacks. Neither one measures VOCs, particulates, carbon monoxide or radon.

The SONOFF SAWF-08P Air Quality Monitor, by a wide margin. Its native Matter over Wi-Fi support reaches Apple Home, Alexa, Google Home, Samsung SmartThings and Home Assistant with no hub required. The Aranet4 HOME integrates only with Home Assistant and has no Google Home, Alexa, Apple HomeKit, SmartThings or Matter support, relying on its own Bluetooth app for everything else.

Choose the Aranet4 HOME if you want the most trusted portable CO2 monitor for checking ventilation room to room or while traveling, and you are fine reading it from its app or E-Ink screen rather than through a smart home platform. Its years-long battery life and atmospheric pressure sensor are hard to match.

Choose the SONOFF SAWF-08P Air Quality Monitor if you want an affordable, always-on CO2 monitor that plugs directly into an existing Matter smart home, whether that is Apple Home, Alexa, Google Home, SmartThings or Home Assistant, without buying a separate hub.