Battery Life 20h ₱ 22,140.00 - 89,209.00 . Garmin Fenix 3 HR . Display Size 30.4 mm . Dimensions (W x H x D) 51 x 51 x 17.5mm . Body Material Carbon Fiber .

probably has to do with the architecture of the devices. garmin probably has specialized chips for 24/7 hr monitoring, whereas apple has a scaled down iphone/pc doing the same in software.. a apple watch can - in theory- do so much more then a garmin watch. But its using cpu cycles to do so, and thus needs more energy then a dedicated circuit
fēnix 6 Battery Life. Smartwatch mode with activity tracking and 24/7 wrist-based heart rate monitoring. Up to 9 days/10.5 days with solar 1. Up to 14 days/16 days with solar 2. GPS mode. Up to 25 hr./28 hr. with solar 3. Up to 36 hr./40 hr. with solar 4. Max. battery GPS mode. Up to 50 hr./64 hr. with solar 5.
Best Fitness Tracker - Garmin Fenix 7. SPECS. Display size: 1.3" (33.02 mm) diameter; Water resistance: 10 ATM; Weight: 79 g (case only: 56 g) Battery life: Smartwatch: Up to 18 days ; Battery Saver Watch Mode: Up to 57 days; GPS Only: Up to 57 hrs; All Satellite Systems: Up to 40 hrs; All Satellite Systems + Music: Up to 10 hrs; Max Battery
Good news, finally got Spotify installed on this APAC model, and it works great. Bad news - so far, it seems to really chew threw battery life. I’ve done numerous 3+ hour events (running / biking) and only had my Fenix 5 Plus lose 5% or so of its battery charge during the event.
Obvious Fenix alternatives are the Coros Vertix 2 ($699/£599) with its 140 hour GPS battery life, and the Polar Grit X Pro ($429/£379). Garmin Fenix 7X: Design and touchscreen The Fenix 7X, just . 176 646 833 773 438 906 848 790

garmin fenix 3 hr battery life