- Brand: Apple
- Weight: 48 g (1.69 )
- 50m water resistant
- Display Size: 1.78 inches
- Resolution: 448 x 368 pixels
- Protection: Sapphire crystal glass
The Series 4 came with a larger and more edge-to-edge display compared to previous models. The screen size increased while maintaining a similar physical size due to reduced bezels.
The Series 4 had a redesigned casing with slightly curved edges and a slimmer profile.
Health and Fitness Features
This version of the Apple Watch emphasized health and fitness even more. It introduced a built-in electrocardiogram (ECG) feature that could help users detect irregular heart rhythms. Additionally, the watch could detect falls and initiate emergency calls if necessary.
Heart Rate Monitoring
The Series 4 featured improved heart rate monitoring capabilities, including notifications for high and low heart rates, as well as atrial fibrillation (AFib) detection.
The Digital Crown, the physical button on the side of the watch, received a haptic feedback mechanism for a more tactile feel when scrolling.
The Series 4 was powered by the S4 chip, which was faster and more efficient compared to previous iterations, providing smoother performance for apps and tasks.
Watch Faces and Complications
The larger display allowed for more detailed and customizable watch faces with new complications and data displays.
Like its predecessor, the Series 4 offered cellular connectivity options, allowing users to make calls, send messages, and use apps even when their iPhone wasn’t nearby.
The Series 4 maintained the water resistance rating of its predecessors, allowing users to use it for swimming and other water-related activities.
The Series 4 was compatible with the same bands as previous models, making it easy for users to switch between bands they already owned.
The Series 4 initially launched with watch OS 5, which introduced various new features and improvements to the Apple Watch’s operating system.