Some thoughts on Ultratrac mode - fēnix 5 Plus Series - Wearables - Garmin Forums
GPS Mode vs UltraTrac: A Guide to Maximising Your Garmin Watch Battery
Garmin All Systems GPS, Multi-Band and GLONASS explained - Wareable
Setting a Garmin Outdoor Watch to UltraTrac Mode for Longer Battery Life | Garmin Customer Support
Garmin launches the Enduro - designed for ultra adventures
Amazon.com: Garmin Enduro, Ultraperformance Multisport GPS Watch with Solar Charging Capabilities, Battery Life Up to 80 Hours in GPS Mode, Carbon Gray DLC Titanium with Black UltraFit Nylon Band (Renewed) : Electronics