| Display | 1.6-inch AMOLED, 256 x 402 pixels, 16M colors; Samsung states it is 45% wider than the Galaxy Fit2 display | 1.2" Super AMOLED, 396x396, Full Color Always On Display, Sapphire Crystal glass |
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| Case | Aluminum body; 42.9 x 28.8 x 9.9 mm; 18.5 g (body); quick-release band button; gray, silver and pink gold | Aluminum, 40mm |
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| Battery | Up to 13 days typical use (208 mAh typical capacity, Samsung lab test with notifications and 30 minutes of workouts per day) | 247 mAh (typical), WPC-based wireless charging |
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| Health Sensors | Optical heart rate sensor, accelerometer, barometer, gyro sensor, light sensor; heart rate, stress, sleep tracking with snoring detection (via paired phone microphone) and overnight blood oxygen, Sleep Coaching | — |
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| Sports | 100+ workout types; Fall Detection and Emergency SOS (press the side button five times) | — |
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| Memory | 16 MB RAM, 256 MB storage | — |
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| Connectivity | Bluetooth 5.3; sensor list does not include a GNSS receiver | Bluetooth 5.3, Wi-Fi 802.11 a/b/g/n 2.4+5GHz, NFC, GPS/Glonass/Beidou/Galileo, optional LTE |
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| Water Resistance | 5ATM and IP68 | 5ATM + IP68, MIL-STD-810H |
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| OS | FreeRTOS; requires a paired Android 10 or later smartphone with at least 1.5GB memory and a Samsung account | Wear OS Powered by Samsung (One UI 5 Watch at launch) |
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| Chipset | — | Exynos W920 dual-core 1.18GHz |
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| RAM | — | 1.5GB |
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| Storage | — | 16GB |
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| Weight | — | 26.6 g (without band) |
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| Dimensions | — | 39.3 x 40.4 x 9.8 mm |
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| Sensors | — | Samsung BioActive Sensor (optical heart rate, electrical heart signal, bioelectrical impedance analysis), accelerometer, barometer, gyro, geomagnetic, light |
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| Compatibility | — | Android 11.0 or higher with more than 1.5GB of memory |
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| Colors | — | Black, Pink Gold, Silver |
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