| Battery | Up to 7 days (Fitbit estimate, default settings) | 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 | Heart rate with machine-learning algorithm (up to 60% more accurate than Charge 5 in HIIT, spinning and rowing per Fitbit), ECG app (select countries), EDA stress scan, SpO2, heart rate variability, breathing rate | BioTracker PPG biometric sensor (5PD + 2LED), accelerometer, gyroscope, ambient light, geomagnetic, temperature, barometric altimeter |
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| Navigation | Built-in GPS; Google Maps turn-by-turn directions | — |
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| Features | Google Wallet contactless payments, YouTube Music controls (Premium subscription), 40+ exercise modes, heart rate broadcast to compatible gym equipment over encrypted Bluetooth, Zoom + Magnification accessibility feature | — |
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| Controls | Haptic side button | — |
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| Compatibility | Android 9.0 or newer, iOS 15 or newer, Google Account required | Android 7.0 or later, iOS 14.0 or later, via the Zepp App |
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| Subscription | 6 months of Fitbit Premium included with device | — |
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| Colors | Obsidian, Porcelain, Coral | Apex Silver, Atlas Blue, Aero White |
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| Display | — | 1.32-inch AMOLED, 466x466, 353 ppi, up to 3,000 nits, sapphire glass |
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| Body | — | 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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| Positioning | — | GPS with offline maps, turn-by-turn navigation, automatic rerouting and point-to-point route planning |
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| Connectivity | — | Bluetooth LE 5.3, Bluetooth calls with microphone and speaker, NFC payments in supported regions |
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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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