According to their website:
Scanadu Scout™ is being designed to provide you with access to valuable data which your body provides every day. Don’t let that precious information get lost; use Scanadu Scout™ to analyze, track, and trend your health data with unprecedented simplicity.
You hold it between your fingers and put it to the forehead. In a few seconds, it is supposed to give the reading of your blood pressure, pulse, blood oxygen level and body temperature.
I struggled with the signal quality. You put it to your forehead and wait for the signal quality which you can see on the smartphone app. While it’s weak, scanning takes a really long time. When it finds the good signal, it is done in seconds. I couldn’t find any correlation between how I hold the device and how good the signal quality is. It seemed to be depending on pure luck or who knows what else. I assume they will solve this by the finalized version.
The readings seem to be OK as I re-checked them with my other health trackers but the margin for error is small for such readings.
The Scanadu Scout doesn’t deliver what it says to deliver and it is not the Star Trek Tricorder yet, but it can improve by time. Reading and analyzing ECG would be a nice addition and changing the traffic light signs to a more sophisticated assessment of the results would definitely be a good idea.
The more similar devices we have on the market, the better. Giving people a chance to measure important vital signs right away with a simple device is crucial in creating a health-conscious society.