The Polar HRM arrived nearly a month ago now and I have had a good chance to use it in various sports.
Firstly unboxing showed a nice little box and neat packaging. When you first switch on RCX it asks you to input basic things like sex, age, height, weight as well as the amount you exercise per week. I fall into a higher (amateur) category of roughly 5-7 hrs / week.
The RCX typically comes in 3 configurations … a gps setup which includes the excellent G5 gps. This is a very nice waterproof unit which holds charge for 20 hrs which is far from what i have had the pleasure of exceeding. The unit comes with an armband although I must confess that one month later i have yet to use it. The unit is very wee and fits into the small key pocket at the front of my running shorts as well as the back pocket of my running tights. I even used it the other day on a ride and had it jammed into a small front pocket of my jacket pocket. Being hunched over I expected the reception and subsequent track to be slightly skittish but coming back i compared the track to the one recorded by my Garmin Edge 305 which is on my stem with an uninterupted view of the sky. The comparison revealed that the Garmin recorded the ride as 51.42km and the edge at 51.62km … that is a 200m discrepancy over a huge distance. thinks it something like 0.4% (better get my calculator out) I am sure a shoulder mount or bar mount would make it perfect (that is me judging the Edge to be perfect …)

Other configurations are the Run pack which comes with the S3+ stride sensor. I have not used this but have seen side by side comparisons to the Garmin unit and from what I gather they are pretty compareable. The Polar unti is much bigger and does everything the Garmin does … the only feature useful to me would be the stride count … but then i am a slight Chi runner and my footfall stride is roughly 83-85/min.
The other configuration i have seen is the bike pack which has a cadence and Speed Censor … the cadence sensor would be the most useful to me … if you have the GPS sensor then i think you dont need the speed sensor.
One point I would say is that it is a shame that it is not the one unit like many of the competitors now do. Times and Garmin do their combined ones. I still use my Garmin unit along with the edge indoors when on the turbo trainer and having this placed on the back wheel makes it very practical.
I think that all the above configurations come with a heart rate belt although it is also possible to buy the RCX5 unit as a standalone piece which is probably only something that athletes that already own a polar belt (although not all older belts can be seen by the RCX5) On the heart Belt itself – amazingly comfortable and using Garmin and Suunto for the past few years I must confess that Polar know what they are doing when they make the belts … so comfy and you never get a strange spike or weird reading that you sometimes get with the Garmin HR belts.
Polar also do sports bras for women which have the HR receiver built into them which should make them more comfy than a standard setup for some.

what works with what POLAR
Back to the RCX unit. There are two colours to choose from a black and a red … I chose red because everyone knows that red is faster.
The square design has been criticised by some but I think it is great … it is slightly larger than a normal watch but once exercising the display is clear and very easy to use.
You can customise the display to show what you want to see .. I have gone into this before HERE
Using the Unit
Strapping the RCX on I immediately noticed how comfortable the watch was – in fact the whole construction oozes class not something i have noticed in the build of any previous Polar, Garmin or Suunto with the possible exception of my Suunto Core
Going outside for a run you can leave the gps on a wall whilst you pre-stretch – and then it latches onto the signal very quickly – the chipset inside the unit is a SIRF6 which allows for quicker lock on. the given wisdom is that cold fixing (in an area you have not been in before) will take around a minute, and hot fixes (starting in an area where you finished your last run / ride) will take 10-20 sec. From experience this seem to hold true. Of course this is a gps so switching it on when inside your house will not be good … but a sky above you should be good enough for the fix.
A tip I learnt for cold or rainy weather is to switch on the gps and leave it in your window whilst you put shoes on and it is generally ready to go when you are.
The unit when setting it up can be set to auto-lap – this is something I use when running having the watch perform every 1km … i find this more useful as a pace guide and a very good nudge to the brain when i need to speed up.
the watch can be set to either follow a programme (which can be configured on polar personal trainer and downloaded) say if you were doing intervals with a 5min warm up, 10 min tempo and 3 fartleks then arm down. The watch also has a great audible warning which can be set to pace or HR. This can either be set to Loud, quieter or off. I find this more useful when doing a fat-burn ride or run when my natural instinct is to speed up and defeat the very purpose of the training.

Post exercise the RCX5 stores your last exercise in the data section fro you to review. By itself the RCX5 gives a good breakdown and review of data. You can look at individual training sessions or see a summary of the week which is useful if you need a motivator to get out the door for a run or cycle. One of the good features is that there is a very good heart rate zone breakdown as well as a neat thing were you can see what percentage of calories was in fat burn.

HR zone breakdown
Speaking of features there is something missing and that is a proper barometric altimeter. Most of the course I do aren’t that hilly and I put bike tracks into bikewithgps or other tracking websites which recomputes gps info and produces a ride profile. For those running in hilly location this lack of altimeter might be a problem but for me it is not a deal breaker.
I think the beauty of the Polar RCX5 is in the heart rate monitoring … a lot of people like myself would look at the lack of ANT+ support and the very annoying lack of integration with other platforms like map my run, bikely,endomondo and others and decide not to go with polar BUT (and it’s a big butt) polar does and has always done great heart rate monitors. The analysis that you can do post exercise is way better than polar and a bit better than the hrm software that my old suunto t6 used with movescount.

Once you have done the exercise you can upload the data using polar weblink which is a free download from their site. One word of advice make sure you click the RCX5 for PPT option as I inadvertently clicked the other option when downloading the update then tore my hair out trying to figure out what i had done)
With the Polar Personal Trainer software you can create programs as well as seeing very easily how your training load is…. This prevents you overtraining (however rare this is in my case)

Finally I would say that polar, although not integrating as well as Garmin does with ANT+, weblink does allow you to access the RCX5 and download the .hrm files and .gpx files (gps track) – it’s a shame it doesn’t use the .tcx format but i think that is a garmin proprietary format.
I may have highlighted some weaknesses in this review but I am happy with the unit and wouldn’t change it.
Like this:
Be the first to like this post.
” the pace had dropped to a bad 5m07/km ”
Sustaining that pace is just a dream for me still!