Garmin Enduro 4 Ultraperformance GPS Smartwatch

The Garmin Enduro 4 is Garmin's ultraperformance GPS smartwatch for long-haul athletes and expedition use. It pairs a rugged, ultralight build with a sweat-wicking ComfortFit fabric band, and its solar charging stretches battery life to as much as 320 hours in activity mode with the extended-battery setting, so multi-day efforts don't end at an outlet.

Training tools go deeper than the usual pace and distance: grade-adjusted pace keeps uphill and downhill efforts honest, stamina insights show how your endurance is trending over time, and the course planner lets you map aid stations and checkpoints before race day. For divers and surface athletes alike, it is a serious everyday training watch with navigation to match.