Apple Watch Series 4

The Apple Watch Series 4, released in September 2018, marked a significant leap forward from its predecessors. It introduced Apple’s first edge-to-edge display on the wrist, featuring significantly thinner bezels and up to 30% more screen real estate—even in the smaller 40 mm size. Under the hood, it boasts a faster 64-bit dual-core S4 chip, delivering twice the performance and smoother interactions. Notable health upgrades include an electrical heart rate sensor capable of taking real-time ECG readings via the Digital Crown, plus fall detection that can automatically dial emergency services. It retains GPS and offers 18‑hour battery life. Combining a sleek design, enhanced health monitoring, and powerful performance, the Series 4 set new standards for what a wearable could be.