Apple has unveiled the Apple Watch Series 4 in the first part of its Keynote today, like how the previous rumors have shown, Watch Series 4 now comes with a larger display and introduces wrist sizes of 40mm and 44mm, Apple has also introduced redesigned UI and watch faces, while enhancing the complications on them
The chassis of Apple Watch Series 4 is now made with black ceramic, the digital crown has also been redesigned to offer better antenna performance for the watch’s built-in LTE radio, while the button now also serves as a Electrocardiogram, which works together with the optical heart rate sensor to detect any abnormal heart issues more accurately. The optical heart rate sensor now also detects high and low heart rate, and tells you if your heart rate is beating at an abnormal rate.
In terms of performance, the Apple Watch Series 4 is now two times faster with the new Apple S4 SoC, the loudspeakers are louder than the previous model, it connects using the more efficient Bluetooth 5.0 standard and finally, it offers the same 18-hour all-day battery life like the Series 3.