Both devices are equipped with the basic home-environment sensors.
- Temperature sensor
- Humidity sensor
- VOCs sensor
- CO2 sensor
- Particular Matter sensor.
Foobot features all the above sensors except the CO2 sensor, it calcualtes the CO2 through an algorithm and the VOCs sensor which doesn’t make it very accurate. Awair has a dedicated sensor for the CO2 which makes it a winner in this category. Both devices display the CO2 in parts per million (ppm) values.
Foobot can measure and display the VOCs in parts per billion (ppb) values which make it perfect if you want to have precision into your measurements. Awair from the other hand can display the VOCs in Index values from 0 best to 5 worst. Foobot wins here (Awair could fix that with a simple app upgrade).
Foobot measures PM10 and PM2.5 and Awair measures PM10 PM2.5 too. Both measure them in μg/m³. They use exactly the same Sharp dust sensor, but the readings I get are different!
I had the devices side by side for a week and they always had different indications for temp, humidity and CO2. As you can see on the pictures below.
Foobot so far works fine via WiFi network WPA2. Awair has had some trouble staying connected, it looses the connection time to time. Awair features Bluetooth but it is only useful during initial connection with your phone (they told me that they are working to fix the wifi issue).
Both devices have a unique interface. Foobot history browser is far more advanced and it can remember measurements for a long time although they need to design it a little more intuitive. Awair can’t display the history far from 24h but the main screen is friendlier and easier for the simple user to understand.
Some of the features can be enchaned during time because they are software based. As a result, for the moment the scores are:
- Awair 5/6
- Foobot 5/6