Material and Finish  
Titanium case, Grade 5

Natural, Black

Size and Weight  
Height: 49mm  
Width: 44mm  
Depth: 14.4mm  
410 by 502 pixels  
1185 sq mm display area  
Weight (natural): 61.4 grams  
Weight (black): 61.8 grams  
Fits 130–210mm wrists

Chip  
S9 SiP with 64-bit dual-core processor  
4-core Neural Engine  
64GB capacity

Sensors  
Electrical heart sensor  
Third-generation optical heart sensor  
Temperature sensor  
Depth gauge ±1m accuracy  
Water temperature sensor  
Compass  
Always-on altimeter  
High-g accelerometer  
High dynamic range gyroscope  
Ambient light sensor

Health and Wellness  
ECG app  
Cycle Tracking app with retrospective ovulation estimates  
Heart Rate app  
High and low heart rate notifications  
Irregular rhythm notifications  
Medications app  
Mindfulness app with state of mind tracking  
Noise app  
Sleep app including sleep stages  
Sleep apnea notifications

Display  
Always-On Retina LTPO2 OLED display  
Flat sapphire crystal display  
Up to 3000 nits maximum brightness  
1 nit minimum brightness  
326 pixels per inch  
Night Mode using Modular Ultra or Wayfinder watch face