The aim of this research is to closely understand the consequent results of human factor engineering or usability engineering practices of various types or models of marketed home-use blood pressure monitors (BPM) in real use. Participants of the intended user population interact with marketed BPMs in research to assess ease of learning, ease of use, effectiveness and efficiency of use, memorability, safety, and/or user appeal among the many possible attributes of interest. With these understanding and analysis of human factors engineering / usability engineering (HFE/UE) practiced status, it can help manufacturers to capture the required and diversified HFE/UE essences with the minimum or limited professional technical resources in hand some more efficiently.