These rugged fenix multisport gps watches let you add mapping, music, intelligent pace planning and more to your workouts so you can take any challenge in stride.The rugged yet sophisticated design features an always-on 1.3 display that's 18% larger than previous fenix models.It is tested to u.S.Military standards for thermal, shock and water resistance.Function: GPSProofs: Water ResistantColor: BlackData Cards: 32 GBCompatible With: iPhone/Android