Review on Etekcity Smart Digital Bathroom Weight Scale, Body Weight and Fat Scales, Wellness Bluetooth Health Monitor, 12.2 x 12.2 inches, White by Samuel Mortimer

Download the app, remove the memory stick from the battery and it's ready to use. Before stepping onto the scale, make sure the app is open. As soon as the weight on the scale starts flashing, the data transfer begins. I bought it to calculate body fat, but there is a lot more data (some implied). I like "metabolic age"; My wife is not very good. TBH I bought it because the reviews seemed good enough and the $30 price tag was worth the risk compared to others - literally - six or seven times the price. I love it and have recommended it to several friends.