| Display | 1.3" (43mm) 432x432 / 1.5" (47mm) 480x480 Super AMOLED, sapphire crystal, Always On Display, 2,000 nits peak | 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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| Case | 43mm: 42.5 x 42.5 x 10.9 mm, 52.0 g / 47mm: 46.5 x 46.5 x 10.9 mm, 59.0 g, rotating bezel | — |
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| Chipset | Exynos W930 dual-core 1.4GHz | Exynos W1000 (5-core, 3 nm) |
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| Memory | 2GB RAM + 16GB storage | — |
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| Battery | Up to 40 hours (Always On Display off) / up to 30 hours (on); 300 mAh (43mm) / 425 mAh (47mm) | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| OS | Wear OS 4 (Wear OS Powered by Samsung), One UI 5 Watch | Wear OS 6 with One UI 8 Watch; Gemini out of the box |
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| Water Resistance | 5ATM + IP68, MIL-STD-810H | — |
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| Sensors | Samsung BioActive Sensor (optical heart rate, electrical heart signal, bioelectrical impedance), temperature, accelerometer, barometer, gyro, geomagnetic, light, 3D Hall sensor | — |
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| Connectivity | Bluetooth 5.3, Wi-Fi 2.4+5GHz, NFC, GPS/GLONASS/BeiDou/Galileo, optional LTE | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Compatibility | Android 10 or higher with more than 1.5GB of memory | — |
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| Features | Sleep coaching, body composition, ECG and blood pressure (select markets, Samsung phone), irregular heart rhythm notification, skin temperature, fall detection, Samsung Wallet | — |
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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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