Barometric altimeter. Everything you need to know about altitude on GPS
Garmin Fenix 3 Review | Tested by GearLab
Amazon.com: Garmin fenix 6, Premium Multisport GPS Watch, Heat and Altitude Adjusted V02 Max, Pulse Ox Sensors and Training Load Focus, Silver with Black Band : Electronics
Garmin Fenix 6S Pro Smartwatch Review - Becky Stern
Garmin Fenix 6 In-Depth Review For Hiking & Outdoors
How to Calibrate Barometric Altimeter for Garmin Smartwatches
Garmin Fenix 6, Enduro, Tactix and MARQ series smartwatches gain bug fixes, new features and improvements with Alpha version 22.75 - NotebookCheck.net News