The heart rate sensor still has to touch your arm though.
The sensor doesn't have to touch your skin to work. As long as its not too far away it will pick it up fine. The sensor uses the light to measure your pulse so as long as the sensor can pick it up it will work.
Mine gives me the same results with this strap or the original strap...
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21 Aug 2014
By Will Verduzco
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?