Polar RS800sd Running Computer System Polar S3 Stride Sensor W.I.N.D., Wearlink W.I.N.D. Running Index, Running Cadence, Training Planning w/Polar Protrainer 5 Online Running Coach, Altimeter, Accurate HR, OwnIndex, OwnOptimizer, OwnCal 99 Memory Files/99 Laps w/Total Recall 2-year warranty