Polar RS400sd Running Computer Fitness Monitor

The RS400 is designed for the active endurance athlete who wants to improve their performance by planning, monitoring and analyzing training data. Wireless ECG accurate heart rate. Polar sport zones. Polar OwnZone. Polar OwnCal. Polar Fitness Test with OwnIndex. Polar Heart Rate Rest Test. Self Walk Test with WalkIndex. Polar OwnCode (5kHz). Polar OwnCode (2.4 GHz) W.I.N.D. Polar OwnOptimizer. Polar Keeps U Fit - Own Workout Program. Polar OwnRelax. Polar Body Workout. HR-based target zones with visual alarm. HR-based target zones with audible alarm. Cadence-based target zones with visual and audible alarm. Exercise Set (extended exercise profiles). Fitness Bullets (á 10 minutes in target zone). Independent CountDown / CountUp timer. HRmax(Polar Fitness test-based). HRmax(age-based). Interval timers. Maximum heart rate of total exercise. Average heart rate of total exercise. Minimum heart rate of total exercise. Average heart rate of each lap. Maximum heart rate of each lap. Recovery measurement (HR / time). Relaxation rate during exercise. Number of laps. Automatic lap recording Opt. Exercise Date. Altitude and ascent. Alternating / repeating countdown timers. Interval trainer (HR, pace, distance) guided workouts. ZonePointer. You&I settings for two users. ZoneLock.