BodyWorks is a bundle of 3 sizes with a standard set of features and with a style which emphasizes realism over statistical accuracy (limb lengths and the model height are anatomically correct)
HumanWorks models are sold individually, with a style which enables more complete compliance with more detailed data for each percentile (eg average girth of each body part).
Please see the homepage for a list of further differences. If you have questions please use the contact form on the Contact page.