I'm sure the Ronstan may be a better choice, especially for open design & distance racing, however the features this Casio has suits my needs. The Ronstan does appear to have a larger display, but this Casio's display was larger than some the other Casios and Timex's that I saw and the seconds do appear as large as the minutes. This particular Casio does not start an elaspe time, but will restart the 5 minute sequence. Since I mainly one-design race H16 and F18s and do very few distance races, I'm never concerned about my elaspe time. I particularly like the alarms in the final 10 secs, so I don't have to rely on an absent minded crew.