Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not accurate - Don't buy

I bought this watch for my wife - she wanted a heart rate monitor watch with calorie counter. The watch was light and easy to use but the heart rate monitor was 20 - 30 beats per minute above what her heart rate really was. It was also hard to tell if the calorie counter was accurate since it would continue to count calories after you took the watch off. I would not advise anybody to get this watch.