| Display | 1.5-inch AMOLED, 480x480, 323 ppi, up to 3,000 nits peak, strengthened glass with anti-fingerprint coating | None - screen-free band with no buttons; data is shown in the Polar Flow app |
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| Body | Aluminum alloy frame, polymer case; 48.5 x 48.5 x 12.2 mm, 39.5 g without strap; 22 mm silicone strap; two buttons | 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 |
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| Battery | Up to 25 days (typical use), up to 13 days (heavy use), up to 10 days with always-on display; up to 64 hours of continuous GPS; 658 mAh | Up to 8 days, 170 mAh Li-Pol, USB-C charging cable |
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| Positioning | Five satellite positioning systems; free downloadable offline maps, including ski resort maps | — |
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| Sensors | BioTracker PPG biometric sensor (5PD + 2LED), accelerometer, gyroscope, geomagnetic, barometric altimeter, ambient light, temperature | Polar Precision Prime optical heart-rate sensor (OHR Gen 3.5), accelerometer; no skin temperature sensing |
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| Connectivity | Bluetooth LE 5.3, Bluetooth calls, microphone and speaker | Bluetooth Low Energy (one connection, reserved for Polar Flow); no built-in GPS (uses phone GPS in Polar Flow) |
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| Durability | 5 ATM water resistance (ISO 22810:2010) | — |
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| Storage | 4GB onboard | — |
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| Sports | 170+ sport modes, automatic recognition of 25 strength exercises, HYROX tools, HybridCharge energy intelligence | — |
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| OS | Zepp OS (release notes list an upgrade to Zepp OS 6); Zepp App for Android 7.0+ and iOS 14.0+ | — |
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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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| 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 |
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