Polar RCX5 GPS Heart Rate Monitor and Training Watch Optimized Training for Endurance Athletes For triathletes, runners, cyclists and endurance athletes who want to optimize their training. ZoneOptimizer adjusts your heart rate zones, making every session more effective Sport profiles guarantee a quick and easy switch between different sports Improves performance with endurance training programs, downloadable from polarpersonaltrainer.com with the Polar DataLink Provides heart rate even in water with a comfortable and disturbance-free hybrid transmitter Race Pace helps control your speed to reach your target time Body measurement features Automatic age-based target zone - bpm / % Average and maximum heart rate of each lap Average, minimum and maximum heart rate of training Heart rate - bpm / % HR-based target zones with visual and audible alarm HRmax (age-based) HRmax (Polar Fitness test-based) HRmax (user set) Manual target zone - bpm / % Polar Fitness Test Polar OwnCal® - calorie expenditure with fat percentage Polar OwnCode® (5kHz/2.4 GHz W.I.N.D.) - coded transmission Polar sport zones Polar ZoneOptimizer - personalized sport zones Data transfer Compatible with Mac (Intel-based) via Polar DataLink Compatible with PC via Polar DataLink Compatible with polarpersonaltrainer.com via Polar DataLink G5 GPS sensor features Distance based interval Distance - training, lap, trip and total Race Pace Route mapping - opt. with polarpersonaltrainer.com web service Running Index Speed/Pace - current, average and maximum Speed/Pace-based target zones with visual and audible alarm SpeedPointer Polarpersonaltrainer.com features Advanced training analyzing Endurance programs Map view - optional with GPS sensor Training computer settings Training Diary Training Load Training programs Recording features Memory left indication Totals Training files (with summaries) - 99 Weekly history Training features Automatic lap recording Display zoom Graphical target zone indicator HeartTouch - button-free operation of wrist unit Interval trainer guided workouts - heart rate / pace / distance Number of laps - 99 Sport Profiles User configurable displays - all lines ZoneLock ZonePointer Watch features Backlight Date and weekday indicator Display text in English, German, Finnish, Swedish, French, Portuguese, Spanish, and Italian Dual time zone KeyLock Low battery indicator StopWatch Time of day (12/24h) with alarm and snooze Training reminder User replaceable battery Water resistant - 30m In the Box Polar RCX5 training computer Polar WearLink®+ Hybrid transmitter Polar G5 GPS Sensor Polar DataLink data transfer unit RCX5 Getting Started Guide G5 GPS Sensor User Manual Review - Aaron Hersh, Triathlete Magazine While most watchmakers are consolidating measurement tools into their triathlon watches, Polar has zagged against the trend. Instead of integrating GPS into the RCX5 watch body, it uses remote pods that combine to track just about every relevant piece of swimming, cycling and running data that a triathlete could want, other than cycling power. But so do several other GPS watches. The RCX5’s method for tracking performance and a few unique features differentiate it from the other wrist-top multisport computers. Functions In addition to the GPS pod, the RCX5 comes with a foot pod, heart rate monitor, and cycling speed and cadence sensors (NOTE: these are optional add-on accessories) that all communicate wirelessly with the watch. Display pages can be set to show a wide range of standard speed, distance and heart rate functions, including swimming heart rate (if you can get the strap to stay in place). Instead of hitting a lap button, the RCX5 can be set to change display pages or mark a lap simply by waving the watch next to the heart rate strap. Package The RCX5 doubles as a functional everyday watch and multisport tracking tool because the GPS components are kept separate, which allows it to have a slimmer profile compared to other bulky GPS-capable watches. Plus, instead of needing a charge every night, the RCX5 holds juice like a standard watch. GPS The GPS pod is a little smaller than a gel pack and communicates seamlessly from a hydration belt, running shorts pocket or included armband (we found the connection to be less reliable from a cycling jersey). It can withstand water and can be used to track an open-water swim. The RCX5 updates running speed within approximately eight seconds of a change in pace. We found the GPS pod measures distance to within 1 percent accuracy while both cycling and running when compared to wheel-measured distances.