The scale failed to recognise my profile (I've added another one before using it the first time), then failed to connect when reset. I had to clear the app cache and remove the device from bluetooth devices (I'm on Android). These issues are known FOR YEARS: look at this forum and you'll find plenty of people complaining about it.
And then the app gives you no information whatsoever on how to interpret the results. Not even the most basic info on BMI.
Seriously Garmin get your *** together. It's shockingly bad.
