Apple Watch Series 7 Review
Apple Watch Series 7 Has New Health and Fitness Features and a Longer Battery Life!
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Here's a comparison of the Series 7 (left, 41mm) and the Series 6 (right, 40mm). The screen is larger on the Series 7 (20 percent more screen area than the Series 6), and there's a much smaller border around the edge. You can see that the buttons are slightly larger and more visible, as well.