You're already on the right track with your training. With the RS300X, you can go all the way. The RS300X give you a true understanding of the effort you put in with all the essential heart rate monitor features. The RS300X is so simple to use, all your training goals are within reach.
Available as optional accessories to add later, the Polar G1 GPS Sensor and Polar S1 Footpod add speed and distance measurement capability to the RS300X for various outdoor sports, so you know it's worth all the effort. You can also upload your training data to the Polar Personal Trainer website with the Polar Flowlink Accessory.
Measures your heart rate
Measures speed and distance (With the optional S1 Footpod or G1 GPS Sensor)
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
Transfer training data to polarpersonaltrainer.com with optional Polar FlowLink™ (Optional)
Polar RS300XBasic 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
KeyLockOver-sized display
User configurable displays
Visual and audible alarm in target zones
Water resistant - 50m
Polar RS300XCycling features
Bike mount - (Optional)
Data transfer
Compatible with polarpersonaltrainer.com with Polar FlowLink (Optional)
GPS featureswith G1 GPS Sensor(Optional)
Battery type - AA
Full power mode (up to 30 hours with an optional lithium battery) - avg. 10 hours
Low battery indicator
Low power battery mode - avg. 15 hours
SIRF-III chipset
Shock resistant
Speed and Distance
WAAS support (wide area augmentation system)
Water resistant - 20m
Language features
Display text in English, German, French and Spanish
Polar RS300XExercise Features
Automatic lap recording - opt. Average heart rate of each lap Average heart rate of total exercise Exercise Date