| Type | Screenless fitness, sleep and recovery tracker worn on the upper arm or wrist, no display | — |
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| Display | None (screenless, all data is read in the Zepp App) | 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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| Sensors | BioTracker 6.0 PPG optical heart-rate sensor (5PD + 2LED), accelerometer, gyroscope, temperature sensor | — |
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| Battery | Up to 10 days typical use, 232 mAh (rated), magnetic charging head | 435 mAh (44 mm), 325 mAh (40 mm), 445 mAh (Classic 46 mm) |
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| Water Resistance | 5 ATM | — |
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| Connectivity | Bluetooth 5.2 (BLE) | LTE models, Bluetooth 5.3, Wi-Fi, NFC, L1+L5 dual-frequency GPS |
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| Dimensions | 33.97 x 24.3 x 10.59 mm (without sensor) | — |
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| Weight | 20 g | — |
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| Body Material | Fiber-reinforced polymer | — |
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| Strap | 22 mm nylon strap with hook-and-loop fastening, fits 145-205 mm | — |
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| Sports Modes | 50+ sports modes via the Zepp App, 25 recognised strength movements, HYROX race mode | — |
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| Health Tracking | Continuous heart rate (per second), blood-oxygen, stress, sleep stages including REM, naps, sleep breathing quality, sleep score, BioCharge energy score, PAI, heart-rate recovery | — |
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| Heart-Rate Broadcast | Real-time heart rate over Bluetooth to compatible watches, bike computers, gym equipment and apps; offline heart-rate storage up to 21 days | — |
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| Compatibility | Android 7.0 and above, iOS 15.0 and above, via the Zepp App | — |
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| In the Box | Helio Strap with assembled strap, magnetic charging head (no cable), instruction manual | — |
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| Subscription | No required monthly subscription | — |
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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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