| Display | 1.28-inch AMOLED touchscreen, 416 x 416, sapphire crystal glass, always-on option | 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 | 44.7 x 44.7 x 12.5 mm; 62 g with wristband (39 g without); plastic case with stainless steel bezel; 22 mm standard wristbands; WR50 water resistance; MIL-STD-810H tested | 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 7 days in smartwatch mode; up to 30 hours in performance training mode; up to 90 hours in eco training mode; rechargeable and replaceable Li-Pol battery | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| Storage | 32 GB (offline maps) | — |
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| Sensors | Polar Elixir biosensing: 4th-generation optical heart rate, wrist-based ECG, SpO2, skin temperature; barometer, magnetometer compass, accelerometer, gyroscope | — |
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| GPS | Dual-frequency GPS with GLONASS, Galileo, BeiDou and QZSS | — |
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| Navigation | Preloaded full-colour offline topographic maps, route guidance, Track Back, points of interest | — |
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| Connectivity | Bluetooth LE, USB-C charging cable (proprietary connector) | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Software | Polar Flow app; Nightly Recharge, Training Load Pro, Orthostatic Test | — |
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| Colors | Night Black, Brown Copper | — |
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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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| OS | — | Wear OS 6 with One UI 8 Watch; Gemini out of the box |
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| Health | — | Samsung BioActive Sensor, temperature sensor, Antioxidant Index, Bedtime Guidance, Vascular Load, Running Coach |
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