When we got our hands on Exetechs XS-3, we were intrigued by the idea of cramming a smartphone into a watch, but dismayed at the execution. After all, this was a device that was in no way waterproof, had a 420mAh battery pressing directly onto your skin and wouldnt even last half a day on a charge. Having sold 800 out of a production run of 1,500, the company found that customers loved the technical accomplishments, but griped about the build quality.