Apple Watch 9 45mm
Our most powerful chip in Apple Watch ever. A magical way to use your Apple Watch without touching the screen. A display that’s twice as bright. And now you can choose a watch case and band combination that’s carbon neutral.
Material and Finish
Aluminum case
Pink, Midnight, Starlight, Silver, (PRODUCT)RED
Stainless steel case
Gold, Silver, Graphite
Size and Weight
Height: 45mm
Width: 38mm
Depth: 10.7mm
Weight (aluminum, GPS):
38.7 grams
Weight (aluminum, GPS + Cellular):
39.0 grams
Weight (stainless steel):
51.5 grams
Fits 140–245mm wrists
Height: 41mm
Width: 35mm
Depth: 10.7mm
Weight (aluminum, GPS):
31.9 grams
Weight (aluminum, GPS + Cellular):
32.1 grams
Weight (stainless steel):
42.3 grams
Fits 130–200mm wrists
Health and Wellness
ECG app2
Cycle Tracking app with retrospective ovulation estimates3
Heart Rate app
High and low heart rate notifications
Irregular rhythm notifications4
Medications app
Mindfulness app
Noise app
Sleep app including sleep stages
Display
Always‑On Retina LTPO OLED display
Edge‑to‑edge display
Ion‑X front glass (aluminum cases)
Sapphire front crystal (stainless steel cases)
Up to 2000 nits maximum brightness
1 nit minimum brightness
326 pixels per inch
Power and Battery Life
All‑day battery life, up to 18 hours of normal use5
Up to 36 hours in Low Power Mode5
Built‑in rechargeable lithium‑ion battery
Fast‑charge capable6
Up to 80% charge in about 45 minutes6
Learn more
Operating System
watchOS 10
watchOS is the world’s most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.
Learn more about watchOS 10
Workouts and Activity
Running
Hiking
Cycling
Swimming
