Fitness wearables are in superb shape when it comes to collecting your health data: Heart rate, sleep patterns, steps taken per day, calories burned, weight gain or loss, mile splits, stress levels, sexual activity or how youre doing in your effort to quit smoking. There were more than 13 million fitness trackers sold in the U.S. just in the last two years according to Statistica. There are more vocal warnings from Internet of Things (IoT) experts and privacy advocates that users need to be aware of how vulnerable their health data are.”]
Source: https://www.csoonline.com/article/3044553/fitness-wearables-whos-tracking-who.html