Google Pixel Watch 3 vs Samsung Galaxy Watch Ultra

Google Pixel Watch 3

Improved but still not multi-day — expect daily charging.

• I averaged about 26-28 hours on a charge with always-on display — better than Pixel Watch 2 but you're still charging nightly.
• Fast charging is a lifesaver — 30 minutes gets you back to 50%, which is enough for a full day.

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.