Sportline Sx Universal Combo Heart Rate Monitor

I have the polar F11 & T31 watch strap combo and when the battery died on the strap and not being user replaceable, I looked for a replacement. This units exceeds the F11/T31 combo in every way, except the kCal is far too high. I cycle through numerous workouts (strength, HIIT, cardio and comos of each) and have monitored my workouts for the last 4 yrs. This unit is reporting 10-20% more kCals than the polar (wearing both at the same time). I have tried different user settings trying to get it to a more reliable result, but have not really found a happy median. I probably should contact the mfgr and see if they have any answers. For a better manual, this pdf is a bit more detailed and clear in its instructions. There are a couple of features at the end that this unit does not seem to have (power down / power save mode), but everything else is spot on. http://www.sportline.com/manuals/DUO_1010.pdf

this watch is so frustrating. the book does it no justice and is very vague. it is flat out difficult and too complicated so i gave up and took it back to the store. i was unable to stop the timer that never ended. i had trouble setting up the weight, gender, etc. I wanted a good watch but not for the headache i endure trying to figure it out.

I purchased this heart rate monitor soully for the one touch heart rate. It only seemed to work 1 out of 15-20 times. The other functions where nice to have but not necc. if the heart rate monitor doens't work. It just becomes a overpriced wrist watch. I will def. be returning this product and spending the money to get a nice one. I WOULD NOT recommend this product to anyone.

I had it for 6 months now. I just had to replace the battery for the first time. Great!!!

Very good monitor, just has poor instructions. To reset the lap for new workout you have to hold down the start lap buton for like two seconds to stop the current lap, you then hold down the reset button for like 2 more and there you go reset.