Cult Sport Weighing scale

I came across weighing scale from cult sport which measure some body parameters (except weight). How body parameters like Hear Rate, Muscle Mass, Body Moisture rate can be measured by weighing scale? Is it worth buying?

Below are the links- https://cultsport.com/cult-smart-body-fat-scale-us-fda-approved-20-parameters-bmi-10-members-bluetooth-weight-machine-body-fat-analyzer-led-display/product/9577?index=2&locationId=6459af27-618a-4e3c-aa9d-9cd0545c3d5f-CS-tenant&itemListName=Weighing%20Scale&itemListId=weighing-scale

https://cultsport.com/cult-smart-scale-pro-us-fda-approved-50-parameters-body-fat-scale-bmi-10-members-bluetooth-weight-machine-body-fat-analyzer-led-display/product/9576?index=0&locationId=6459af27-618a-4e3c-aa9d-9cd0545c3d5f-CS-tenant&itemListName=Weighing%20Scale&itemListId=weighing-scale