There's an onboard altimeter in the Forerunner 165, and it clocked my altitude gain as 43 feet higher than Strava. Without a third GPS-equipped device, it's difficult to know which is more accurate.

Dramatic video from Iceland's coast guard showed fountains of lava soaring more than 50 meters (165 feet) into the darkened skies. A plume of vapor rose about 3 kilometers (1½ miles) above the ...

Dramatic video from Iceland's coast guard showed fountains of lava soaring more than 165 feet into the darkened skies.

Dramatic video from Iceland's coast guard showed fountains of lava soaring more than 165 feet into the darkened skies. 00:00 00:56 Author: MARCO DI MARCO (Associated Press) ...

Dramatic video from Iceland's coast guard showed fountains of lava soaring more than 50 meters (165 feet) into the darkened skies. A plume of vapor rose about 3 kilometers (1½ miles) above the volcano ...