Garmin Fenix 8 AMOLED vs Samsung Galaxy Watch Ultra

Garmin Fenix 8 AMOLED

Up to 29 days AMOLED, 48 days Solar MIP — in a league of its own.

• AMOLED model: up to 29 days in smartwatch mode — outlasts all Apple/Samsung watches by 10x+
• Solar MIP model: up to 48 days with always-on display
• 25% improved solar efficiency over Fenix 7 Solar

Samsung Galaxy Watch Ultra

Best battery life in Samsung's smartwatch lineup, though still behind Garmin.

• I consistently got 2.5-3 days of normal use — a huge improvement over the Galaxy Watch 6 series.
• The power-saving mode stretching to 60 hours is useful for multi-day hikes, but you lose most smart features.