| Case | Titanium, shock-resistant; 47 mm (47.4 x 47.1 x 10.7 mm, 61.5 g); Titanium Silver / Titanium Gray | 47 mm, Titanium Grade 4, 47.1 x 47.4 x 12.1 mm, 60.5 g |
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| Display | 1.52-inch (38.5 mm) Super AMOLED, 498x498, sapphire crystal, full-color Always On Display, up to 5,000 nits (localized peak) | 1.5-inch (37.3 mm) 480 x 480 Super AMOLED, always on, up to 3,000 nits |
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| Chipset | Qualcomm Snapdragon Wear Elite (SDW6100, penta-core, 3nm) | — |
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| RAM | 2GB | — |
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| Storage | 64GB | — |
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| Battery | 800 mAh typical capacity (Samsung: 35% more than previous Ultra); no runtime figure published at launch; high-frequency fast wireless charging (WPC-based) | — |
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| Water Resistance | 10ATM+ / IP69K / MIL-STD-810H / EN13319 dive instrument certification; 100 m (ISO 22810) | — |
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| Sensors | Samsung BioActive Sensor (optical heart rate, ECG, BIA), temperature, accelerometer, barometer, gyro, geomagnetic, light | Samsung BioActive Sensor (optical, electrical heart signal, bioelectrical impedance), temperature, barometer, gyro, geomagnetic, light |
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| Connectivity | LTE, Bluetooth 6.0, Wi-Fi 2.4/5 GHz, NFC, L1+L5 dual-frequency GPS | LTE, Bluetooth 5.3, Wi-Fi 2.4 + 5 GHz, NFC, dual-frequency GPS |
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| Health Features | Sleep Apnea, Vitals, Heart Health Score, Daily Cardio Load, Fitness Index, Hearing; Trail Run and Nutrition Alert hydration guidance | — |
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| OS | Wear OS 7 (One UI 9 Watch); requires Android 13+ phone with Google Mobile Services | Wear OS 5 (launch) |
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| Processor | — | Exynos W1000 (5-core, 3 nm) |
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| Durability | — | 10ATM, IP68, MIL-STD-810H; operates from 100 m below to 9,000 m above sea level |
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| Colors | — | Titanium Grey, Titanium White, Titanium Silver (Titanium Blue added in 2025) |
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| Price | — | 599 pounds in the UK at launch |
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