| Display | 1.32-inch AMOLED, 466x466, 352 ppi, 600 nits default peak (1,000 nits in high-brightness mode), 2.5D glass | 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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| Body | 43.2 x 43.2 x 11 mm; 18K PVD gold-plated stainless steel case with leather strap (Glimmer Gold) or 316L stainless steel with fluoroelastomer strap (Nebula Black); about 37.8 g without strap | 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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| Battery | Up to 60 hours in Smart Mode, up to 7 days in Power Saver Mode; 354 mAh typical (345 mAh rated) | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| Charging | VOOC watch fast charging, 10 minutes for up to 24 hours of normal use, about one hour for a full charge | — |
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| Chipset | Snapdragon W5 Gen 1 plus BES2800BP MCU | Exynos W1000 (5-core, 3 nm) |
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| RAM | 2GB | — |
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| Storage | 32GB (plus 4GB eMMC for the RTOS) | — |
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| Sensors | Optical heart rate, blood oxygen, accelerometer, gyroscope, geomagnetic, light and barometer sensors | — |
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| Connectivity | Bluetooth 5.2, Wi-Fi 2.4/5GHz, NFC, GNSS (GPS, BeiDou, Galileo, GLONASS, QZSS), Bluetooth calling | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Durability | 5ATM and IP68 | — |
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| OS | Wear OS by Google plus RTOS for Power Saver Mode; works with Android 9.0 or later phones with Google Mobile Services, not iOS | Wear OS 6 with One UI 8 Watch; Gemini out of the box |
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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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| Health | — | Samsung BioActive Sensor, temperature sensor, Antioxidant Index, Bedtime Guidance, Vascular Load, Running Coach |
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