I upgraded to firmware 19.20 and you should! Better battery life (6% drop after a 4 hour hike with GPS + Galileo + map from 8% after 2.5 hours GPS only with
Garmin fēnix® 5S Plus | Multisport GPS Watch
What's the best GPS option for open water swimming? I swim in Long Beach california. : r/GarminFenix
Garmin fenix 5 Plus Sapphire (Titanium bezel, Solar Flare Orange band) GPS multisport training smartwatch with music player — 47 mm case at Crutchfield