ساعة رصد ضربات القلب لممارسي رياضة الجري ONRHYTM 110

Been used 5 times a week over last 6 weeks and been very reliable so far, good value .

I was looking for a replacement and this was in the sale so was great value.

Works well although the chime is a little quiet. I would not rely on that anyway and it gives a good readout of heart rate.
I use it for aerobic exercise and check recovery

Previously owned a Polar FT04 which was all I needed, unfortunately it gave up on me.
After a little research quickly decided I do not need a watch that tells me what to do and when so reluctantly purchased this device. Don't get me wrong, it's basic, but if you only want feedback of heart rate whilst exercising, this is ideal.
Comparing to the Polar, the chest strap is larger and not so easy to fit. That's me getting used to it. The watch provides decent feedback of effort (heart rate) and have tested over 16 miles, 6.5 interval training and 10.5 at consistent effort. Both instances compared to my old Polar.
I'm in my 16th week of training using 'Heart Monitor Training for the compleat idiot' and can vouch for the benefits for this training (other resources are available online).
Bottom line is, its clunky, basic and cheap. If all you require is binary feedback of heart rate, this will do the job (as long as you moisten the strap pads).