"The Wyze Scale sensors collect heart rate and weight, and information relating to your body composition, including body mass index, body fat, body water, muscle mass, and protein content. If you enable Friendly Faces with your Cam Plus or Cam Protect Service, we collect and record facial images and generate and store measurements to create personal information relating to those images ("Facial Data"), which could be considered biometric information or biometric data in some jurisdictions."
Wyze devices collect highly sensitive data including detailed body composition metrics, heart rate, facial recognition data, and biometric information, going well beyond basic device functionality.