Garmin Fenix 8 and Garmin Enduro 3 are here: Two new super-watches with incredible battery power.
https://www.techradar.com/health-fitness/garmin-fenix-8-revealed-alongside-the-garmin-enduro-3
https://www.techradar.com/health-fitness/garmin-fenix-8-revealed-alongside-the-garmin-enduro-3