VoellerComputing.com
Aluminum case
Jet Black, Rose Gold, Silver
Titanium case
Slate, Gold, Natural
watchOS 11
42 Millimeters
Height: 42mm
Width: 36mm
Depth: 9.7mm
374 by 446 pixels
989 sq mm display area
Weight (aluminum, GPS): 30 grams
Weight (aluminum, GPS + Cellular): 29.3 grams
Weight (titanium): 34.4 grams
Fits 130‑200mm wrists
46 Millimeters
Height: 46mm
Width: 39mm
Depth: 9.7mm
416 by 496 pixels
1220 sq mm display area
Weight (aluminum, GPS): 36.4 grams
Weight (aluminum, GPS + Cellular): 35.3 grams
Weight (titanium): 41.7 grams
Fits 140‑245mm wrists
Controls
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Digital Crown with haptic feedback
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Side button
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Double tap gesture
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Siri with on‑device processing
Apple s10 Chip
Sensors
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Electrical heart sensor
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Third‑generation optical heart sensor
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Temperature sensor1
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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
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Depth gauge
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Water temperature sensor
Health and Wellness
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ECG app
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Cycle Tracking app with retrospective ovulation estimates
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Heart Rate app
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High and low heart rate notifications
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Irregular rhythm notifications
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Medications app
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Mindfulness app with state-of-mind tracking
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Noise app
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Sleep app including sleep stages
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Sleep apnea notifications
Display
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LTPO3 OLED Always‑On Retina display
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Wide‑angle OLED
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Up to 40% brighter when viewed at an angle
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Edge‑to‑edge display
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Ion‑X front glass (aluminum cases)
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Sapphire front crystal (titanium cases)
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Up to 2000 nits maximum brightness
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1 nit minimum brightness
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326 pixels per inch
Power and Battery Life
Safety
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Emergency SOS
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International emergency calling
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Crash Detection
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Fall Detection
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Noise monitoring
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Backtrack
Durability
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Water resistance 50m (swim-proof)
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Dust resistance IP6X11
Connectivity​
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LTE and UMTS
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Wi-Fi 4 (802.11n)
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Bluetooth 5.3
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Second-generation Ultra Wideband chip
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Apple Pay
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GymKit
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Support for Apple Watch For Your Kids
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International roaming