Cardiosport Graph X Heart Rate Monitor


5 Heart rate target zone settings Automatic setting of heart zone from age.
Cardiozone target zone setting feature activated during exercise.
Colour graphical display, similar to tachometer on car, which indicates intervals of training during exercise, compared with active target zone.
Heart rate shown as a % of maximum heart rate.
High and low heart zone.
LCD light.
Maximum average and minimum heart rate of session displayed.
Minimum, Maximum and average heart rate of excerise session displayed.
Quick start feature, which automatically sets 3 target zones and takes you straight into heart rate monitoring zone.
Visual out of zone alarm & optional audible alarm.
Zone limits set in 1 beat steps.
100 Chronograph that displays upto 100 lap and split times on screen, and has 20 memories for lap with average heart rate and split with heart rate at split time.
Scan function showing minimum, maximum and average heart rate of exercise session


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[Oct 09, 2003]


Numbers are large and easy to read. The buttons and functions are simple and can be mastered in a few workouts.


I'm a new triathlete/duathlete that needed an HRM to track workouts and give readouts in percentage as well as actual HR. One selling point of this HRM that makes it unique is the color display in the upper right hand corner. HRMs are often compared to automobile tachometers. The Graph X sports a tach-like display. The only trouble is, I can't read it. I need to be standing still in a well lighted spot just to see if the display is working. It is nearly impossible to read on a bike or while running. The other problem may or may not be the HRM's fault and that is erratic readings. There are some days when the HR will read well over 120% MHR and then a moment later 40% when I have been cruising at 70% for the last hour. It can happen at any time. It really screws up trying to map your workout and throws all the memory functions off. I have a beginners Sports Instruments HRM that never gave me any trouble. Finally, the instruction manual is a bit weak.

The price point got me, but if I had to do it all over I'd get the Polar S120 or a Sports Instrument 7.

Similar Products Used:

Sports Instuments

[Feb 22, 2004]
Robert Gillespie


price, ecl light, easy to read display, consistent readings in parks, ease of functioning


erratic readings in busy streets, tachometer function is hard to see

I'm a runner and wanted a basic heartrate monitor which also could function as a chronograph. I decided to purchase the cricket graph X over the comparable polaris s120, because the graph X has an ecl light, and I do alot of my running at night. The graphX is significantly cheaper than any of the polaris models with lights. The light function works well, after pressing the corresponding button the light stays on for 4 seconds. The tachometer function is basically useless since you really can't see it that well. However you can clearly see the chronograph function as well as your heartrate and the percentage of your heart rate max. When I run on a tread mill or in central park the monitor works very consistently, ie no erratic readings. However when running on the busy streets of Manhattan on the way to Central Park, sometimes the heart rate functions stops working. If you want a dependable heart rate monitor/chronograph with a light you can't go wrong with this model. However, if you have interest in purchasing this hrm because of the tachometer function you may be disappointed since it is very hard to see.

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