| Display | 1.62" AMOLED touchscreen, 192x490, 60Hz, up to 1,200 nits | 1.34-inch (438 x 438) Super AMOLED, always on, sapphire crystal, up to 3,000 nits |
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| Body | 46.53 x 21.63 x 10.95 mm (without strap and sensor), 15.8 g without strap; aluminium alloy frame with TPU strap; fits 135-210 mm wrists | — |
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| Battery | Up to 21 days (typical use), up to 9 days with always-on display, up to 6.6 days heavy use; 233 mAh, magnetic charging in about 1 hour | 445 mAh typical, fast wireless charging |
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| Sensors | Accelerometer, gyroscope, optical heart-rate sensor, ambient light sensor | Samsung BioActive Sensor, temperature, accelerometer, barometer, gyro, geomagnetic, light, 3D Hall sensor |
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| Durability | 5 ATM water resistance | 5ATM, IP68, MIL-STD-810H |
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| Sports | 150+ sports modes, all-day heart rate, blood oxygen, stress and sleep monitoring | — |
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| OS | Mi Fitness app; compatible with Android 8.0+ and iOS 12.0+ | Wear OS 6 (One UI 8 Watch) with Gemini |
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| Colors | Midnight Black, Glacier Silver, Mystic Rose, Arctic Blue, Titan Gray | Black, White |
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| Case | — | 46 mm, 46.4 x 46 x 10.6 mm, 63.5 g (without band), rotating bezel and Quick Button |
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| Processor | — | Exynos W1000 (5-core, 3 nm) |
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| Memory / Storage | — | 2 GB RAM, 64 GB |
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| Connectivity | — | LTE (LTE models), Bluetooth 5.3, Wi-Fi 2.4 + 5 GHz, NFC, dual-frequency GPS |
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| Price | — | 449 pounds (Bluetooth) or 499 pounds (LTE) in the UK at launch |
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