@ dasilvarsa

Same as the GPS antenna I suppose. It is prebuilt in the strap. Really small and compact compared to its ancestors. Lets say Forerunner 305 where the antenna was enormous and was very irritating for wearing. This one is much more elegant.

@ kunix

Isn't it? Can you write what is it written inside? There are no text strings at all inside. Maybe it is criped or compressed some how. Maybe the text is on other rgns but how to access them?