For analytical running. You demand more information and
analytical feedback. You want to shave off minutes and
seconds from your personal best with the proper training plan. The RS400sd is your system for planning, monitoring and analyzing your running. The RS400sd meets your needs by providing daily information on your aerobic fitness and
running economy. Comes with the same running features as the RS400, plus detailed speed/pace and distance tracking.
Basic features
Heart rate (displayed as bpm)
Heart rate (displayed as % of maximum heart rate)
Heart rate (displayed as graphical trend)
Heart rate (displayed as HRR%)
Automatic/Manual target zone (% / bpm / HRR%) %/bpm
