DiCE (Digital Health in the Circular Economy) focuses on reducing electronic waste (e-waste)generated by the application of digital health devices. This report summarises the designresearch process undertaken to develop and assess motivational strategies aimed atencouraging citizens to properly return their digital health devices. These motivational strategiesencompass a combination of nudges and motivators (previously named nudging strategies).The report details the final motivational strategies that will be applied to smart pillboxes for DiCEconfirmatory pilots and illustrates how these strategies can also be adapted for other products,such as an On Body Drug Delivery System. The design research process provided valuable insights into developing effective motivationalstrategies to promote the return of digital health devices. Findings highlight the complexitiesinvolved in influencing human behaviour, especially regarding the proper handling of end-of-usedevices in a circular economy context. An iterative design process has proven essential in refining these motivational strategies.Feedback loops from both citizens and multidisciplinary stakeholders helped identify barriersand areas that require careful consideration. The report presents three types of knowledge: Design knowledge for designers. This includes the final motivational strategies,comprising design motivators and design requirements, along with insights from thedesign process and the small-scale and confirmatory pilot Design knowledge about the design process. It outlines the design process and keylessons learned. Knowledge about the evaluation process. This encompasses the evaluation methodsand lessons learned. Overall, the findings indicate that combining intrinsic motivators (e.g., emotional satisfaction,ethical considerations) with practical requirements (e.g., ease of recycling) can enhance thereturn rates of digital health devices. These insights contribute to the overarching goal ofoptimizing reverse logistics in digital healthcare, fostering sustainable practices in this rapidlyevolving sector. The upcoming confirmatory pilots will further evaluate the application of thisdesign knowledge within revised prototypes design to better align with user expectations andlogistical feasibility.