Introducing Apple Watch Series 4 — Apple

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Jony Ive: Apple Watch Series 4 is more than an evolution. It represents a fundamental redesign and reengineering of Apple Watch.

While retaining the original iconic design, we've developed and refined the form, also managing to make it thinner. The new display is now over 30 percent larger and is seamlessly integrated into the product.

The interface has been redesigned for our new display, providing more information with richer detail. The hardware and the software combine to define a very new and truly integrated singular design.

Navigating with a Digital Crown, already one of the most intricate mechanisms we've ever created, has been entirely reengineered with haptic feedback, delivering a precise mechanical feel as you scroll. In addition to an optical heart sensor, there is a new Apple-designed electrical heart sensor that allows you to take an electrocardiogram, or ECG, to share with your doctor.

A momentous achievement for a wearable device. Placing a finger on the Digital Crown creates a closed circuit with electrodes on the back, providing data the ECG app uses to analyze your heart rhythm.

While understanding heart health is essential to our wellbeing, additional features and enhancements encourage us to live an overall healthier, more active life. The accelerometer, gyroscope, and altimeter allow you to record new types of workouts, measure runs with increased precision, and track your all-day activity with great accuracy.

Enhanced cellular connectivity enables something truly liberating: the ability to stay connected with just your watch. Phone calls, music streaming, and even emergency assistance are all immediately available from your wrist.

Apple Watch Series 4 is a device so powerful, so personal, so liberating, it can change the way you live each day.

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