Fenix 3 is the uncompromising gps sport watch designed for demanding athletes and outdoor adventurers fenix 3 is powered by advanced sensors gpsglonass positioning via the new steel exo antenna and a brilliant colour chroma display it comes packed with multi sport training functions such as running dynamics vo2 max estimation and swim metrics new trail running features and extensive navigation fenix 3 has an athletic rugged design and the high quality build is perfected for demanding sp