Background: Delivering bad news is difficult and requires specific training, but this training can be accomplished through high-fidelity simulation (HFS). This prospective study was conducted to objectively evaluate the emotional impact of HFS as an effective tool to develop clinical proficiency.Methods: This prospective feasibility study was conducted from January 2021 to May 2021. Students received a 1- or 2-day training course. The emotional impact of the intervention was evaluated by self-questionnaire and by an Affect-tag wristband that analysed Emotional power (EP), Emotional density (ED), and Cognitive load (CL).Results: The study population included 46 students with a median age of 25 years (range 21–34 years). Participants were emotionally and effectively involved in the HFS training without being completely overpowered by emotions, which may be an inherent feature of the training format. Students who participated twice improved their EP (p < 0.001) and decreased their ED (p = 0.005). CL remained stable (p = 0.751). The mean time of the first and second training increased (1:41 vs. 2:16, p = 0.02). Skills improved as assessed by self-questionnaires and by outsiders (actor/nurse).Conclusion: HFS is a good method for this type of training, considering the emotional impact. Training in delivering bad news was improved through objective practice and self-assessment by participants.