| Display | 1.3-inch always-on AMOLED touchscreen, 416x416, up to 1,500 nits, mineral glass | 1.2-inch AMOLED touchscreen with tapered edge and automatic brightness (COROS cites 164% higher resolution than PACE 3) |
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| Processor | Ambiq Apollo510 (COROS claims more than twice the processing power of the PACE 3) | — |
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| Battery | Up to 20 days of daily use (up to 6 days with always-on display); up to 38 hours of GPS in All Systems mode (28 hours with always-on display); up to 31 hours in dual-frequency mode; under 2 hours to charge | Up to 19 days of daily use; up to 41 hours of GPS in All Systems (High) GPS mode |
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| Body | 46 x 46 x 12.25 mm; 37 g with nylon band, 49 g with silicone band; fiber-reinforced polymer case and bezel; 22mm quick-release bands | 11.8 mm thick; 32 g with nylon band, 40 g with silicone band; Standard White version with fiber-reinforced polymer bezel; Black Crystal and Cloud White versions with aluminum alloy bezel |
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| Positioning | All-satellite dual-frequency GNSS (GPS, GLONASS, Galileo, BeiDou, QZSS), downloadable global maps with turn-by-turn navigation | All-Systems and Dual-Frequency satellite modes |
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| Sensors | Optical heart rate and SpO2, electrical heart rate sensor for HRV, barometric altimeter, accelerometer, gyroscope, 3D compass, thermometer | Redesigned optical heart rate sensor with larger LEDs, built-in microphone |
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| Controls | Touchscreen, digital dial and back button | Touchscreen, two buttons and a tactile digital dial, plus an Action Button for data screens, media controls, breadcrumb navigation and Voice Pins |
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| Memory | 32GB internal storage, about 1,200 hours of activity memory (COROS estimate) | — |
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| Connectivity | Bluetooth, Wi-Fi for data sync and firmware updates, offline music playback with supported Bluetooth headsets | — |
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| Water resistance | 5 ATM (surface water activities, not for diving) | — |
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| Charging | USB-C (cable not included) | USB-C charging adapter (cable not included) |
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| Colors | Black, Grey, Blue | — |
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| Bands | — | Interchangeable silicone or nylon bands |
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| Sports | — | Running fitness scores and tests, race predictions, personalized marathon plans, Virtual Pacer, Effort Pace, real-time activity alerts |
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| Health | — | HRV, sleep, recovery time and menstrual cycle tracking |
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| Media | — | On-watch media controls for skipping tracks or podcasts and adjusting volume |
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