This page has been created to help you understand some of the differences in FEATURES between our selection With so many Dr Pen devices available, it’s easy to understand why you might feel a little overwhelmed by the selection! To make things easier, we’ve created a comparison guide to give you an idea on how each model compares to the other. While the devices may appear similar, they all have their unique applications, so it’s a good idea to consider your skincare needs and which model is going to be the most appropriate for your needs.