| Sizes | Watch8 in 40 mm and 44 mm (Graphite, Silver); Watch8 Classic in 46 mm (Black, White) | — |
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| Display | 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) | 1.47-inch AMOLED, 466x466, 317 ppi, up to 3,000 nits (Huawei claim), sapphire glass |
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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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| Battery | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) | Up to 21 days (light use, Huawei lab test), up to 12 days typical use, up to 7 days with always-on display, up to 40 hours in outdoor sport mode; wireless charging |
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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 | Huawei watch software with the Huawei Health app; works with Android 9.0+ and iOS 13.0+ |
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| Health | Samsung BioActive Sensor, temperature sensor, Antioxidant Index, Bedtime Guidance, Vascular Load, Running Coach | — |
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| Connectivity | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS | Bluetooth 6.0, NFC, speaker and microphone for Bluetooth calls |
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| Size | — | 45.6 x 45.6 x 11.25 mm, about 54.7 g without strap; wrist size 140-210 mm |
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| Case | — | Titanium alloy; Black fluoroelastomer, Brown composite woven or Titanium strap |
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| Durability | — | 5 ATM, IP69, freediving to 40 m (EN13319) |
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| Sensors | — | Optical heart rate, ECG, temperature, barometer, depth, accelerometer, gyroscope, magnetometer, ambient light |
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| Positioning | — | Dual-band GPS (L1+L5), GLONASS, BeiDou, Galileo, QZSS, NavIC; offline maps |
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| Sports | — | 100+ sports modes, wrist-based cycling power, trail running, golf with 17,000+ course maps, skiing, freediving |
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