| Display | 1.2-inch always-on transflective touchscreen with mineral glass and a night mode | Always-On display; cover glass 4x more resistant to cracks than previous generation (Ion-X) |
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| Body | 11.7 mm thick; 30 g with nylon band; silicone and nylon band options; 20 mm quick-release bands | — |
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| Battery | Up to 15 days of regular use; up to 38 hours of full GPS (standard GPS mode) | Up to 18 hours; 15 minutes of fast charging adds up to 8 hours, about 80% in 45 minutes |
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| Positioning | GPS with optional dual-frequency mode, barometric altimeter, breadcrumb and turn-by-turn navigation | — |
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| Sensors | Optical heart rate and SpO2 sensor (5 LEDs, 4 photodetectors), barometric altimeter | — |
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| Water Resistance | 5 ATM | — |
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| Sports | Run, bike, swim, strength and snow activity modes; training plans, workouts and COROS Training Hub | — |
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| Connectivity | Bluetooth; syncs with Strava, Nike Run Club, Apple Health and Health Connect; notifications, Find My Phone, GoPro and Insta360 control | 5G cellular models |
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| Music | Built-in audio support for music (per COROS) | — |
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| Case Size | — | 40mm / 44mm aluminium (midnight, starlight) |
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| Chipset | — | Apple S10 |
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| Health Sensors | — | Heart rate, wrist temperature sensing, sleep score, sleep apnea notifications, retrospective ovulation estimates |
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| OS | — | watchOS 26 (requires iPhone 11 or later with iOS 26) |
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