| Display | AMOLED touchscreen: 1.3-inch 416x416 (43 mm), 1.4-inch 454x454 (47 and 51 mm), up to twice as bright as fenix 8 (Garmin claim), sapphire lens | 1.39-inch AMOLED touchscreen, 454 x 454, 326 ppi, sapphire crystal glass, always-on option, ambient light sensor |
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| Case | 43, 47 and 51 mm; fiber-reinforced polymer with titanium rear cover and titanium bezel; 61 g / 75 g / 91 g; 13.8 / 13.8 / 14.7 mm thick | — |
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| Battery | Up to 10 / 16 / 29 days in smartwatch mode (43 / 47 / 51 mm); 51 mm: up to 54 hours GPS, 145 hours Max Battery GPS, up to 31 days Expedition mode (Garmin claims) | 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) |
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| Storage | 64GB for maps, music and data (about 7,000 songs per Garmin) | 32 GB for training data, offline maps and routes |
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| Navigation | Multi-band GPS with SatIQ plus GLONASS, Galileo, QZSS and BeiDou; routable maps with perspective view, 50% more RAM than fenix 8 | 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 |
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| Training | Garmin Epic multi-activity stories, stamina zones and stamina curve, indoor rowing VO2 Max and power curve, rucking with up to 100 kg pack weight, training readiness and training status | — |
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| Health | Wrist-based heart rate, Pulse Ox, ECG app, Body Battery, sleep coach, skin temperature | — |
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| Features | Garmin Pay, music storage, LED flashlight, leakproof inductive buttons, speaker and microphone, Connect IQ | — |
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| Connectivity | Bluetooth, ANT+, Wi-Fi | Bluetooth LE, USB-C charging cable (proprietary connector) |
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| Durability | 10 ATM, rated for diving to 40 m | — |
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| Straps | QuickFit 26 mm silicone band included, ComfortFit bands available | — |
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| OS | Garmin firmware; pairs with Android and iOS through the Garmin Connect app | — |
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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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| 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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| 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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