Garmin Forerunner 255 vs Samsung Galaxy Watch Ultra

The Verdict

Garmin's Forerunner 255 and Samsung's Galaxy Watch Ultra serve different priorities among serious watch enthusiasts. The Forerunner 255 excels in battery efficiency, delivering up to 14 days in smartwatch mode and 30 hours during GPS tracking, making it ideal for endurance athletes who prioritize longevity over features. Its 260 x 260 MIP display remains visible in sunlight and consumes minimal power. The Galaxy Watch Ultra dominates in raw specifications: its 480 x 480 Super AMOLED display with 3000-nit brightness, Wear OS 5 software, cellular connectivity, and comprehensive health sensors (ECG, skin temperature, SpO2) provide a more feature-rich experience. The Ultra's titanium construction and 10ATM rating offer superior durability despite weighing 60.5g versus the Forerunner's 49g. Battery life claims 60 hours only in Power Saving mode, a significant limitation for daily users. The Forerunner 255 suits runners and triathletes valuing reliability and battery endurance, while the Ultra appeals to Android users wanting a sophisticated smartwatch with comprehensive health data and premium materials. The $300 price difference is substantial; choose the Forerunner for focused fitness tracking and real-world battery performance, or the Ultra for broader smartphone integration and advanced health metrics.