Build & Materials
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Case sizes: 42 mm and 46 mm
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Case materials & finishes:
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Aluminum: Jet Black (polished), Rose Gold, Silver
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Thickness: ~9.7 mm (about 10% thinner than Series 9)
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Weight:
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46 mm aluminum GPS: ~36.4 g
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42 mm aluminum GPS: ~30.0 g
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Wrist fit ranges:
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46 mm: approx 140‑245 mm wrists
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42 mm: approx 130‑200 mm wrists
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Display
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Type: Always‑On Retina LTPO OLED, wide‑angle display
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Resolution:
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46 mm: 416 × 496 pixels
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42 mm: 374 × 446 pixels
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Display area:
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46 mm: ~1220 sq mm
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42 mm: ~989 sq mm
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Brightness:
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Peak: up to ~2000 nits
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Minimum: down to ~1 nit
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Protection: Ion‑X glass (on aluminum versions), sapphire crystal front on titanium versions
Hardware & Performance
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Chip: S10 SiP with 64‑bit dual‑core processor
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Neural Engine: 4‑core
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Storage: 64 GB onboard
Sensors & Health Features
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Electrical heart sensor
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Third‑generation optical heart sensor
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Blood oxygen sensor
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Temperature sensor
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Depth gauge
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Water temperature sensor
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Compass
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Always‑on altimeter
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High‑g accelerometer
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High dynamic range gyroscope
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Ambient light sensor
Health, Wellness & Safety
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ECG functionality
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Blood Oxygen app
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Heart rate app, high and low heart rate notifications
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Irregular rhythm notifications
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Sleep app, including sleep stages
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Sleep apnea notifications
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Cycle tracking (with retrospective ovulation estimates)
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Mindfulness and Medications apps
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Noise monitoring
Battery & Charging
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Battery life (normal use): up to ~18 hours
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Low Power Mode: up to ~36 hours
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Fast charging capability: can reach ~80% charge in ~30 minutes
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Short charge durations yield useful usage: e.g. 15 minutes gives about 8 hours of normal use; similar short charge supports sleep tracking etc.
Durability & Resistance
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Water resistance: 50 meters (swim proof)
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Dust resistance: IP6X
Connectivity & Other Features
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Cellular (for GPS + Cellular models) and standard GPS in others
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Bluetooth version 5.3
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Wi-Fi (802.11n)
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Ultra Wideband chip (Gen 2)
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Crash detection, fall detection, Emergency SOS
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Support for gestures (double tap gesture, etc.)
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Media playback via speaker (instead of being limited to calls only)