Garmin D2 Delta PX Aviator Watch with DLC Titanium Band
Sporty's Pilot Shop - Is your smart watch really smart? The Garmin D2 Delta PX has a built-in GPS, pressure altitude sensor, and pulse oximeter: https://www.sportys.com/pilotshop/garmin-d2-delta-px-watch-in-carbon-gray-titanium-band-51mm.html | Facebook
Tutorial - D2 Delta PX: Getting Started - YouTube
The D2 Delta PX is Garmin's Most Advanced Pilot's Watch Yet - FLYING Magazine