The main differences between the Step Through and Step-Over frames are a few key measurements, allowing a wider range of people to fit the bicycle. As you can see in the chart below, the Step-Through has a shorter reach from the saddle to the handlebars, a shorter steer tube and a much lower top tube which creates the step-through portion of the frame.
Boda Boda Classic (aka Boda Boda V2 or V1)