Apple has introduced Apple Watch Series 4, redesigned and re-engineered to help users stay connected, be more active and manage their health in powerful new ways. While retaining the original iconic design, the fourth-generation Apple Watch has been refined, combining new hardware and software enhancements into a genuinely singular, unified form. The stunning display is over 30 percent larger and seamlessly integrates into the thinner, smaller case, while the new interface provides more information with richer detail. Apple Watch Series 4 with watchOS 5 brings advanced activity and communications features, along with revolutionary health capabilities, including a new accelerometer and gyroscope, which are able to detect hard falls, and an electrical heart rate sensor that can take an electrocardiogram (ECG) using the new ECG app,1 which has been granted a De Novo classification by the FDA.
“We’re thrilled Apple Watch has become an essential part of people's lives,” said Jeff Williams, Apple’s chief operating officer. “The completely redesigned Apple Watch Series 4 continues to be an indispensable communication and fitness companion, and now with the addition of groundbreaking features, like fall detection and the first-ever ECG app offered directly to consumers, it also becomes an intelligent guardian for your health.”
Health
Apple Watch Series 4 enables customers to take an ECG reading right from the wrist using the new ECG app, which takes advantage of the electrodes built into the Digital Crown and new electrical heart rate sensor in the back crystal. With the app, users touch the Digital Crown and after 30 seconds, receive a heart rhythm classification. It can classify if the heart is beating in a normal pattern or whether there are signs of Atrial Fibrillation (AFib), a heart condition that could lead to major health complications. All recordings, their associated classifications and any noted symptoms are stored in the Health app in a PDF that can be shared with physicians.
With watchOS 5, Apple Watch intermittently analyzes heart rhythms in the background and sends a notification if an irregular heart rhythm such as AFib is detected.3 It can also alert the user if the heart rate exceeds or falls below a specified threshold.
Fall detection utilizes a next-generation accelerometer and gyroscope, which measures up to 32 g-forces, along with custom algorithms to identify when hard falls occur. By analyzing wrist trajectory and impact acceleration, Apple Watch sends the user an alert after a fall, which can be dismissed or used to initiate a call to emergency services. If Apple Watch senses immobility for 60 seconds after the notification, it will automatically call emergency services and send a message along with location to emergency contacts.
Fitness
With watchOS 5, Apple Watch becomes an even better fitness and workout companion. Activity competitions allow users to challenge other Apple Watch wearers, automatic workout detection provides an alert to start a workout while giving retroactive credit, and Yoga and Hiking are new dedicated workout types that accurately track active calories burned and exercise minutes earned. Running enthusiasts can take advantage of extended battery life — which is increased to six hours — for outdoor workouts and enjoy high-performance features, including cadence for indoor and outdoor runs, pace alerts for outdoor runs and rolling mile pace, which shows pace for the immediately preceding mile.