| Display | 1.5" AMOLED (LTPO, always-on), 466 x 466 pixels, 310 ppi, up to 60Hz, sapphire 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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| Size | 46.3 x 46.3 x 11.4 mm, approx. 51.8 g without strap | — |
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| Case | Grade 5 titanium alloy case; polymer fiber composite back cover | — |
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| Battery | Up to 15 days (typical use, with an HONOR phone), 480 mAh rated, wireless charging dock | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| Water Resistance | 5 ATM, IP68; EN13319 40 m free-diving mode | — |
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| Positioning | GPS, GLONASS, Galileo, BeiDou, QZSS | — |
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| Connectivity | Bluetooth 5.2 (BLE/BR/EDR), 2.4 GHz | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Sensors | Optical heart rate, accelerometer, gyroscope, magnetometer, barometer, ambient light | — |
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| Compatibility | Android 9.0 or later, iOS 13.0 or later | — |
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| Strap | Fluoroelastomer or leather, fits 140-210 mm wrists | — |
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| Colors | Black, Brown | — |
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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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| Health | — | Samsung BioActive Sensor, temperature sensor, Antioxidant Index, Bedtime Guidance, Vascular Load, Running Coach |
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