| 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) | Flat crystal, up to 3000 nits |
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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 | Up to 36 hours; up to about 60 hours in low-power mode |
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| Water Resistance | 5 ATM | WR100 / EN13319, recreational dives to 40 m |
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| Connectivity | Bluetooth 5.2 (BLE) | Cellular, dual-frequency GPS (L1 + L5) |
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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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| Case Size | — | 49mm titanium |
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| Chipset | — | Apple S9 SiP, 2nd-gen Ultra Wideband |
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| Health Sensors | — | Heart rate, water temperature, sleep apnea detection, blood oxygen (calculated on paired iPhone) |
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| OS | — | watchOS 10 (at launch) |
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