Built-in caliper body fat calculator
Have a built in 3 or 7 site calculator for body fat.
A trainer can put in the 3 or 7 site caliper measurements and have it tracked.
Coach Steffi & Moritz commented
Better to use Parillo 9 Site or Charles Poliquin Bioprint 14 Site. All the others heavily underestimate BF%
The body fat is not even required. Just the ability to see total millimeters of all sites is accurate. No tricky calculators just simple total of all sites.