| Display | 1.5" AMOLED, 480 x 480, 323 PPI, tempered 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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| Case | 46 x 46 x 10.6 mm, aluminum alloy middle frame, fiber-reinforced polymer bottom shell, 35 g without strap | — |
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| Battery | Up to 14 days typical use (up to 5 days with always-on display), 475 mAh | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| Water Resistance | 5 ATM | — |
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| GPS | Dual-band GPS, 6 satellite systems, offline maps | — |
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| Sensors | BioTracker 5.0 PPG (8PD + 2LED), BIA bioelectric impedance, accelerometer, gyroscope, geomagnetic, barometric, ambient light, temperature | — |
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| Connectivity | Wi-Fi 2.4GHz, Bluetooth 5.0, Bluetooth phone calls | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Storage | Music storage up to 2.2GB | — |
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| OS | Zepp OS 3.0 at launch (later Zepp OS 3.5 / 4) | Wear OS 6 with One UI 8 Watch; Gemini out of the box |
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| Compatibility | Android 7.0+, iOS 14.0+ | — |
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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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| Chipset | — | Exynos W1000 (5-core, 3 nm) |
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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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