Apple watch Series 9 45MM Midnight

Material and Finish Aluminum case Size and Weight 45mm Height: 45mm Width: 38mm Depth: 10.7mm Weight (aluminum, GPS): 38.7 grams Fits 140–245mm wrists Compatibility iPhone Xs or later with iOS 17 or later In the Box Apple Watch Series 9 Band Apple Watch Magnetic Fast Charger to USB‑C Cable (1m) 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 use Up to 36 hours in Low Power Mode Built‑in rechargeable lithium‑ion battery Fast‑charge capable Up to 80% charge in about 45 minutes Chip S9 SiP with 64‑bit dual‑core processor 4‑core Neural Engine 64GB capacity Durability Water resistance 50m (swimproof) Dust resistance IP6X Connectivity L1 GPS, GNSS, Galileo, and BeiDou LTE and UMTS Wi‑Fi 4 (802.11n) Bluetooth 5.3 Second‑generation Ultra Wideband chip Apple Pay GymKit Supports Apple Watch for kids using Family Setup Hardware and Buttons Digital Crown Microphone Side button Electrical heart sensor Speaker/air vent Optical heart sensor Controls Digital Crown with haptic feedback Side button Double tap gesture Siri with on‑device processing Sensors Electrical heart sensor Third‑generation optical heart sensor Temperature sensing 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 Noise app Sleep app including sleep stages Safety Emergency SOS International emergency calling Crash Detection Fall Detection Workouts and Activity Running Hiking Cycling Swimming Walk Elliptical Rower Stair Stepper HIIT Yoga Functional Strength Training Dance Cooldown Core Training Pilates Tai Chi Wheelchair Kickboxing Multisport Other