Sorry for the late post. I was having trouble adding my comparison chart to the site. This was the best solution my sister and husband (aka my personal Geek Squad) could find; I was no help at all.
Having multiple epinephrine auto-injectors (EAI) choices available is a wonderful thing for the patient/individual; not so much for the teacher or school nurse but I will discuss that in an upcoming post. EAI selection is a personal choice based on a number of factors: price, feel, perceived ease of use, size, etc. These preferences may change or evolve with time just as our lives change.