| Display | 1.43" AMOLED, 466x466, 326 ppi, 600 nits default / 1000 nits high brightness, 2D glass cover | Super AMOLED with full-colour always-on display; 1.47-inch (44 mm) or 1.34-inch (40 mm, 46 mm Classic); sapphire crystal; up to 3,000 nits (Samsung claim) |
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| Chipset | Qualcomm Snapdragon W5 Gen 1 + BES2700BP MCU (Dual-Engine Architecture) | Exynos W1000 (5-core, 3 nm) |
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| RAM | 2GB | — |
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| Storage | 32GB | — |
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| Battery | Up to 100 hours (Smart Mode) / up to 12 days (Power Saver Mode), 500 mAh, fast charging: 10 minutes for up to 24 hours of use | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| OS | Wear OS 4 + RTOS | Wear OS 6 with One UI 8 Watch; Gemini out of the box |
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| Dimensions | 47.6 x 46.6 x 12.1 mm, about 37 g without strap | — |
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| Case | Aluminium alloy case, silicone strap with stainless-steel buckle | — |
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| Water Resistance | 5ATM and IP68 | — |
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| Connectivity | Bluetooth 5.0, Wi-Fi 2.4/5GHz, NFC, dual-frequency GPS (L1+L5) | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Sensors | Accelerometer, gyroscope, optical heart rate, optical pulse oximeter, geomagnetic, light, barometer | — |
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| Compatibility | Android 8.0 or later with Google Mobile Services; not compatible with iOS | — |
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| Sizes | — | Watch8 in 40 mm and 44 mm (Graphite, Silver); Watch8 Classic in 46 mm (Black, White) |
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| Memory / Storage | — | 2 GB memory, 32 GB or 64 GB storage depending on model |
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| Body | — | 8.6 mm thick and 30-34 g (Watch8); 10.6 mm and 63.5 g (Classic); 5ATM + IP68 / MIL-STD-810H |
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| Health | — | Samsung BioActive Sensor, temperature sensor, Antioxidant Index, Bedtime Guidance, Vascular Load, Running Coach |
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