| Display | None - screen-free band with no buttons; data is shown in the Polar Flow app | 1.32-inch AMOLED, 466x466, 353 ppi, up to 3,000 nits, sapphire glass |
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| Body | Stainless steel sensor unit, 42 x 27 x 9 mm; 29 g with band (19.5 g without band); SoftWeave band in S/M and M/L sizes; WR30 water resistance | Stainless steel frame, four buttons; 45 x 45 x 11 mm excluding sensor; 38 g without strap; 20 mm silicone strap |
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| Battery | Up to 8 days, 170 mAh Li-Pol, USB-C charging cable | Up to 12 days (typical use), up to 7 days (heavy use), up to 4 days with always-on display; up to 24 hours continuous GPS (up to 76 hours in power-saving mode); 365 mAh |
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| Sensors | Polar Precision Prime optical heart-rate sensor (OHR Gen 3.5), accelerometer; no skin temperature sensing | BioTracker PPG biometric sensor (5PD + 2LED), accelerometer, gyroscope, ambient light, geomagnetic, temperature, barometric altimeter |
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| Tracking | 24/7 heart rate, activity, sleep and recovery tracking; Nightly Recharge, SleepWise, Sleep Plus Stages, Training Load Pro, automatic training detection | — |
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| Memory | 4 weeks of data on the band (16 MB storage) | — |
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| Connectivity | Bluetooth Low Energy (one connection, reserved for Polar Flow); no built-in GPS (uses phone GPS in Polar Flow) | Bluetooth LE 5.3, Bluetooth calls with microphone and speaker, NFC payments in supported regions |
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| Software | Polar Flow app (free, no subscription); one-time purchase | — |
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| Colors | Greige Sand, Night Black, Brown Copper; extra bands USD 29.90 | Apex Silver, Atlas Blue, Aero White |
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| Positioning | — | GPS with offline maps, turn-by-turn navigation, automatic rerouting and point-to-point route planning |
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| Durability | — | 5 ATM water resistance |
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| Storage | — | 4GB onboard |
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| Sports | — | 170+ sports modes, built-in running workouts, Zepp Coach plans, 25 auto-recognized strength movements |
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| Compatibility | — | Android 7.0 or later, iOS 14.0 or later, via the Zepp App |
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