The largest Apple Watch display yet. New electrical heart sensor. Re-engineered Digital Crown with haptic feedback. Entirely familiar, yet completely new, Apple Watch Series 4 resets the standard for what a watch can be. Space Black stainless steel case 44mm strap fits 140-210mm wrists 4G LTE and UMTS with Built-in GPS, GLONASS, Galileo and QZSS 64-bit dual-core S4 processor W3 Apple wireless chip Barometric altimeter Storage Capacity of 16GB Optical heart sensor keeps track of your heart rate and triggers low heart rate notifications if your heart rate falls below a specified threshold for a period of 10 minutes when you appear to be inactive Electrical heart sensor consists of Digital Crown Electrode and Back Crystal Electrode New accelerometer and gyroscope detects hard fall incidents and alerts you to initiate calls to emergency services, emergency calls will be placed automatically and messages will be sent to your emergency contacts after 60 seconds of unresponsiveness Emergency SOS calls 911, notifies your emergency contacts, sends your current location and displays your Medical ID badge on the screen for emergency personnel even when you’re away from your phone. Ambient light sensor LTPO OLED Retina display with Force Touch (1,000 nits) improves power efficiency, helping you get through the day on a single charge 977 sq. mm display area Digital Crown with haptic feedback Curved corners precisely match the radius of the case, creating a more pleasing, continuous appearance 50 percent louder speaker with improved audio quality for Siri and Walkie-Talkie Ion-X strengthened glass Sapphire crystal and ceramic back Connects to Wi-Fi (802.11b/g/n 2.4GHz) and Bluetooth 5.0 The new Infograph watch face can accommodate up to eight complications Built-in rechargeable lithium-ion battery Up to 18 hours of battery life on a single charge Water-resistant to 50 metres and tracks both pool and open-water workouts WatchOS 5 Operating System

Stay connected, stay informed, and remain healthy with the Apple Watch Series 4. This Apple Watch features a 44mm curved watch face with an LTPO OLED Retina display and digital crown.