Instruct: Classify a review as either positive or negative.
Query: new watch didn't work

The heartrate monitor function on this watch didn't work right out of the box. I tried everything, even replacing the battery in the transmitter and couldn't get the watch to recognize my heart rate or anyone elses. Amazon was great about taking the watch back but what a pain. This is the second x3hr I have ordered that has been defective. The first one was not from Amazon however and the screen froze then the battery died the day after I received it. These watches seem like a bargain for all of the functions they have, but they also seem to be unreliable.