Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not waterproof as advertised...

I'm sure this watch works fine if you don't really expect it to be waterproof, or sweat proof, and if you don't live in a humid country. I owned mine for about two weeks before steam collected behind the glass. By week four it stopped working entirely (even though I took it off in the shower, etc.).Additionally, if you're a runner and plan to use the timers and use the stop watch functions, those can be difficult because of the ridiculous number of buttons you have to push. That wasn't too big a problem for me and I would have given the watch 3 stars based the utility of the buttons... if it hadn't stopped working entirely after 4 weeks.