So excited by this purchase. I was using a Fit bit tracker (pocket size model) for years. Decided that I wanted to know more than just steps. In researching ""smart watches"" rating after rating said the iWatch by Apple was the best, but most noted that the Gear S3 was the best choice for Android users. As a long time Samsung guy (2nd Note phone And Samsung tablet), the decision was easy. The watch hasn't disappointed these past 10 days. If I encounter any problems, I'll update. Great seller here on Amazon!