| Display | 1.39-inch AMOLED touchscreen, 454 x 454, 326 ppi, sapphire crystal glass, always-on option, ambient light sensor | 1.4-inch (35.41 mm) AMOLED touchscreen, 454x454 pixels, optional always-on mode |
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| Body | 48.6 x 48.6 x 13.4 mm; 79 g with wristband (57 g without); stainless steel case and bezel; 22 mm quick-release wristbands; WR100 water resistance; MIL-STD-810H tested; -20 to 50 C operating temperature | — |
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| Battery | Up to 11 days in smartwatch mode; up to 40 hours in performance training mode; up to 110 hours in eco training mode; 488 mAh rechargeable Li-Pol battery (Polar's launch announcement quoted up to 10 days, 43 hours and 140 hours) | Up to 16 days in smartwatch mode; up to 20 hours in golf activity mode with default settings (Garmin claims, 47 mm model) |
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| Storage | 32 GB for training data, offline maps and routes | 64GB for courses, music and data |
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| Sensors | Polar Elixir biosensing: 4th-generation optical heart rate, wrist-based ECG, SpO2, nightly skin temperature; barometer, magnetometer compass, accelerometer, gyroscope | — |
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| GPS | Dual-frequency GPS with GLONASS, Galileo, BeiDou and QZSS | — |
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| Navigation | Preloaded maps of Europe and North America, downloadable regions and contour maps in Polar Flow, Breadcrumbs, turn-by-turn navigation powered by komoot, Strava route sync, Track Back, Back to Start | Multi-band GPS |
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| Connectivity | Bluetooth LE, USB-C charging cable (proprietary connector) | Bluetooth, ANT+, Wi-Fi |
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| Software | Polar Flow app; Training Load Pro, Recovery Pro, Nightly Recharge, SleepWise, FitSpark, FuelWise, Hill Splitter, orthostatic and running tests | — |
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| Extras | Built-in flashlight; wrist-based running power; vertical speed, VAM and 3D speed | — |
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| Colors | Night Black, Stone-Gray; Grit X2 Pro Titan edition with titanium front casing and an extra leather wristband | — |
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| Sizes | — | 43 mm and 47 mm (detailed specifications below are for the 47 mm model) |
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| Case | — | 47 x 47 x 13.5 mm, 48 g with ComfortFit band; titanium bezel, sapphire crystal lens |
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| Golf | — | 43,000+ preloaded courses worldwide, swing metrics (hand speed, backswing length, wrist rotation), green reading and putting analytics with an active Garmin Golf membership, aerial imagery, golf biometric data, PlaysLike distance |
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| Health | — | Wrist-based heart rate, Pulse Ox, ECG app, Body Battery, sleep coach, stress tracking |
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| Features | — | Built-in speaker and microphone for calls and voice commands, Garmin Pay, music storage, LED flashlight in white and red |
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| Durability | — | 5 ATM water rating |
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| Straps | — | ComfortFit fabric band, QuickFit 22 mm (47 mm model) |
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| OS | — | Garmin firmware; pairs with Android and iOS through the Garmin Connect app |
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