Thatmakes a huge difference. The 40mm model’s OLED screen is 394x324, compared to the 38mm Series 3’s 340x272 display, and the 44mm model’s is 448x368 versus the 390x312 panel in the 42mm
Dimensions 41mm. Height: 41mm; Width: 35mm; Depth: 10.7mm; Weight (Aluminum, GPS): 31.9g; Weight (Aluminum, GPS + Cellular): 32.1g; Weight (Stainless Steel): 42.3g; ECG app is available on Apple Watch Series 4 and later (excluding Apple Watch SE) and can generate an ECG similar to a single-lead electrocardiogram.
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apple watch 4 screen size
