This model turned the Apple Watch into a certified medical tool.
Are you writing a on Apple's design evolution?
Do you need a for an existing Series 4?
Internals were overhauled to match the ambitious new software.
The first over-the-counter wearable to offer a 30-second electrocardiogram. Series 4
A new watch face capable of holding eight complications. ❤️ A Breakthrough in Health
40mm and 44mm sizes replaced the original 38/42mm. This model turned the Apple Watch into a
Over 30% more screen area with rounded corners.