Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Second Polar watch - second fail

I purchased my first polar a couple of years back, after one year of very light use it broke down: when I sent to repair I was told that it was me not handling the product well... I believed them, so I went ahead and purchased the Polar RS100 and made sure to precisely follow the instructions on how to take good care of the unit. I did only to have problems again after 7 months and only maybe ten occasions to use it! Sent to repair directly to Polar thinking it was under warranty but... no, the watch's warranty is 1-year but the strap only 6 months... and of course the strap was the problem and got charged two new batteries, too... I will not buy Polar again.