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RS300X

For recreational athletes

Get all the essential heart rate features with this good-looking and simple-to-use training computer. RS300X is compatible with S1 foot pod™ and G1 GPS sensor, so you can combine heart rate with speed and distance. Only then you can truly make sense of your training and be sure it's worth all the effort.

  • Helps you to train at the right intensity with personal training zones
  • Displays how many calories you’ve burned
  • Tracks your latest 16 training sessions and your last 16 weeks of training
  • Transfers training data to polarpersonaltrainer.com with optional Polar FlowLink™
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RS300X

Basic features
Automatic/Manual target zone (% / bpm / HRR%)
Backlight
Display zoom
Easy start (setting wizard)
Event Countdown Timer
Graphical target zone indicator
Heart rate (displayed as % of maximum heart rate)
Heart rate (displayed as bpm)
HeartTouch™, button-free operation of wrist unit
KeyLock
Over-sized display
User configurable displays
Visual and audible alarm in target zones
Water resistant - 50m
two lines
Cycling features
Bike mount - opt.
Data transfer
Compatible with polarpersonaltrainer.com with Polar FlowLink
GPS features
Battery type - opt.
Full power mode (up to 30 hours with an optional lithium battery) - opt.
Low battery indicator - opt.
Low power battery mode - opt.
SIRF-III chipset - opt.
Shock resistant - opt.
Speed and Distance - opt.
WAAS support (wide area augmentation system) - opt.
Water resistant - opt.
Language features
Display text in English, German, French and Spanish
Polar exercise features
Automatic lap recording - opt.
Average heart rate of each lap
Average heart rate of total exercise
Exercise Date
Exercise Set (extended exercise profiles)
HR-based target zones with audible alarm - 3
HR-based target zones with visual alarm - 3
HRmax (Polar Fitness test-based)
HRmax (age-based)
Interval trainer (HR, pace, distance) guided workouts
Maximum heart rate of each lap
Maximum heart rate of total exercise
Number of laps - 99
Polar Fitness Test™ with OwnIndex®
Polar OwnCal®
Polar OwnCode® (5kHz)
Polar OwnZone®
Polar sport zones
Speed-based target zones with visual and audible alarm - opt.
Wireless ECG accurate heart rate
ZoneLock
ZonePointer
Recording features
Average heart rate
Calorie expenditure - exe.total
Exercise Time (total)
Exercise file info page with date and time
Lap info
Last OwnIndex
Maximum heart rate
Number of exercise files (with summaries) - 16
Target zone limits
Time in target zone
Running features
Distance summaries - opt.
G1 GPS Sensor - opt.
Run Distance - opt.
S1 foot pod™ - opt.
Speed displayed in pace, or kmph/mph - opt.
Speed/Pace and Distance - opt.
Speed/Pace summaries - opt.
Speed/Pace target zones - opt.
Target pace - opt.
Target pace alarms - opt.
Time and Distanced based interval timer - opt.
Totals mileage, kilocalories, time training - opt.
Trip Odometer - opt.
Transmitter belt
WearLink®+ 31 coded transmitter (changeable battery)
Watch features
Alarm with snooze
Date and weekday indicator
Dual time zone
Low battery indicator
StopWatch
Time of day (12/24h) with alarm