The Polar RCX5 is the best choice for athletes who do endurance cross-training and / or multisport training. This Kit comes with a Polar Cinch Bag.

ZoneOptimizer adjusts heart rate zones, making every session more effective
Endurance training programs improve performance (downloadable from polarpersonaltrainer.com)
Hybrid transmitter gives heart rate even in water
Option to upgrade with compatible high quality sensors

Body Measurement Features
Heart rate
Polar Sport zones
Polar ZoneOptimizer - personalized sport zones
Training Load - available via polarpersonaltrainer.com
HR-based target zones with visual and audible alarm
Manual target zone
Polar Fitness Test
Polar OwnCal - calorie expenditure
Polar OwnCode - coded transmission

Training Features
Sport Profiles
Graphical target zone indicator
HeartTouch - button-free operation
Number of laps 99
Time and distance based interval timers
ZoneLock
ZonePointer

Recording Features
Total training summary
Training files (with summaries)
Weekly history

Cadence Sensor features
Cadence

Speed Sensor Features
Autostart/stop
Distance
Speed
SpeedPointer
Race Pace

Watch Features
Date and weekday indicator
Display text in English, German, French, Spanish, Portuguese, Italian, Finnish and Swedish
Time of day (12/24h)
User replaceable battery
Water resistant 30m

WearLink + Hybrid transmitter picks up your hearts signals and transfer that data into a compatible Polar training computer. The soft textile chest strap seamlessly adapts to your body shape, bringing full freedom of movement to your training. With its hook mechanism, the transmitter is just as quick to put on as it is to take off.

Uses both 5kHz and 2.4gHz W.I.N.D. transmission, ensuring that your heart rate signal is found at all times
Record and shows heart rate information also while swimming
Machine washable textile strap
User replaceable battery
Size: M-XXL

Easy data transfer - You can transfer data wirelessly between the training computer and polarpersonaltrainer.com