Apple Watch Series 4 models contain batteries that are nearly 20% smaller
Published on Apple's website, the company's Product Information Sheet contains quite a bit of info regarding the batteries inside the new Apple Watch models. Specifically, it's revealed that the 44mm Series 4 device contains 1.12 watt-hours, while the smaller 40mm offering includes 0.86 watt-hours. For comparison, last year's 42mm and 38mm devices were equipped with 1.34 watt-hours and 1.07 watt-hours respectively. This translates into drops of 16.5% and 19.7%.
Despite the rather sizeable decreases in capacity, Apple claims that its new Apple Watch Series 4 duo are capable of achieving the same 18-hour battery life that was possible with previous-generation watches. Ultimately, though, Apple's official figures are yet to be put to the test, so there is no guarantee users will be able to reach the same levels in real-life scenarios. Fortunately, we will be putting the figures to the test in our upcoming review of the new Apple Watch Series 4, so be sure to stay tuned for it.
source: Apple via MacRumors