Polar RS300X Training computer
For hobby runners and athletes!
This item is no longer being offered by the manufacturer
For hobby runners and athletes, that require all important heart rate information about the speed, pace and distance.
- Helps to train at the right intensity with individual sport zones and the polar OwnZone®.
- The fitness test with polar OwnIndex® measures your aerobic fitness at rest and informs you about your progress.
- Display of calorie consumption with polar OwnCal®
Smart coaching features
Fitness test: tells you exactly how your fitness develops.
OwnZone: guides you to always train in the right intensity.
Smart calorie calculation: tells you exactly how many calories you've burned.
Training load: Helps you to find the perfect balance between recreation and training.
Automatic setting of heart rate target zone based on age (S/min or %)
Average and maximum heart rate per interim
Average and maximum heart rate of the entire exercise
Heart rate in S / min. %
Heart rate based target zones with visual and audible alarm
Heart rate max (based on age)
Heart rate max (user input)
Manual target zone (S / min., %)
Polar OwnIndex® fitness test
Polar OwnCal® - calorie expenditure
Polar OwnCode® (5 kHz)
Polar OwnZone® - personal heart rate target zone
Polar sport zones
Compatible with Macintosh (Intel based) via polar FlowLink
Compatible with PC via polar FlowLink
Compatible with polarpersonaltrainer.com via polar FlowLink
Training files (with summaries) - 16
Graphical target zone indicator
The HeartTouch function - operation without button actuation
Interval trainer function (control over heart rate, pace, distance)
Number of storable splits: 99
Time / Distance-based interval timer
User-configurable display (two rows)
Date and weekday
Display text in English, German, French and Spanish
Time (12/24 h) with alarm and snooze function
Water resistant - 50 m
Dietary supplements are not a substitute for a varied and balanced diet. Keep away from children.
The recommended daily dosage should not be exceeded.