| Display | 1.46" AMOLED, 464 x 464 pixels, 317 ppi, up to 3000 nits peak brightness, touch-to-wake, wet-touch control | 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 | 46.5 x 46.5 x 10.8 mm; Shadow Black: aluminum alloy front case, 316L stainless steel bezel; Twilight Brown: 316L stainless steel | — |
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| Weight | Approx. 41 g (Shadow Black) / approx. 50 g (Twilight Brown), without strap | — |
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| Battery | Up to 35 days (long-endurance mode), up to 17 days (typical use), up to 42 hours with independent GPS, 980 mAh typical capacity, magnetic charging | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| Water Resistance | 5 ATM, IP69 | — |
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| Positioning | Dual-band GNSS (L1+L5): GPS, Galileo, GLONASS, BeiDou, QZSS, NavIC | — |
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| Connectivity | Bluetooth 5.4 (BLE/BR/EDR), 2.4 GHz, NFC payments (Fidesmo, Mastercard and Visa) | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Health | Heart rate, HRV, blood oxygen, sleep, stress, body energy assessment, blood pressure trend monitoring (via OTA; not a medical device) | Samsung BioActive Sensor, temperature sensor, Antioxidant Index, Bedtime Guidance, Vascular Load, Running Coach |
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| Sports Modes | 120+ sports modes including professional football and badminton modes, running coach | — |
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| Compatibility | Android 9.0 or later, iOS 15.1 or later | — |
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| Strap | Fluoroelastomer strap (140-210 mm) or composite strap (140-200 mm) | — |
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| Colors | Twilight Brown, Shadow Black | — |
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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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| OS | — | Wear OS 6 with One UI 8 Watch; Gemini out of the box |
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