| Display | 1.62" AMOLED touchscreen, 192x490, 60Hz, up to 1,200 nits | 1.5-inch (37.3 mm) 480 x 480 Super AMOLED, always on, 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 | — |
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| Sensors | Accelerometer, gyroscope, optical heart-rate sensor, ambient light sensor | Samsung BioActive Sensor (optical, electrical heart signal, bioelectrical impedance), temperature, barometer, gyro, geomagnetic, light |
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| Durability | 5 ATM water resistance | 10ATM, IP68, MIL-STD-810H; operates from 100 m below to 9,000 m above sea level |
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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 5 (launch) |
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| Colors | Midnight Black, Glacier Silver, Mystic Rose, Arctic Blue, Titan Gray | Titanium Grey, Titanium White, Titanium Silver (Titanium Blue added in 2025) |
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| Case | — | 47 mm, Titanium Grade 4, 47.1 x 47.4 x 12.1 mm, 60.5 g |
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| Processor | — | Exynos W1000 (5-core, 3 nm) |
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| Connectivity | — | LTE, Bluetooth 5.3, Wi-Fi 2.4 + 5 GHz, NFC, dual-frequency GPS |
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| Price | — | 599 pounds in the UK at launch |
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