Apple Watch Series 4 (GPS + Cellular, 44mm) – Space Black Stainless Steel Case with Space Black Milanese Loop Price: $712.79(as of Jun 26, 2022 10:33:14 UTC – Details) Over 30% larger displayElectrical and optical heart sensorsECG appDigital Crown with haptic feedback50% louder speakerS4 SiP with faster 64-bit dual-core processor