• Brand: Apple
  • Weight: 48 g (1.69 )
  • 50m water resistant
  • Display Size: 1.78 inches
  • Resolution: 448 x 368 pixels
  • Protection: Sapphire crystal glass

Larger Display

Apple announces the launch of Apple Watch Series 7, running WatchOS 8

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.


Apple Watch Ultra review: A big smartwatch with some little quirks | Engadget

The Series 4 had a redesigned casing with slightly curved edges and a slimmer profile.

Health and Fitness Features

Apple Watch: All of the health and fitness features, explained - CNET

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

Apple Watch: New Health Features for AFib and Medication Tracking

The Series 4 featured improved heart rate monitoring capabilities, including notifications for high and low heart rates, as well as atrial fibrillation (AFib) detection.

Digital Crown

How to Turn off the Digital Crown Haptic Feedback on Apple Watch Series 4

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 Power Of Apple's A-Series Chips: What Makes Them So Fast And Efficient » BYPASS HACKER

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

Apple Watch Series 4's new watch faces, reviewed: Great start, but more, please - CNET

The larger display allowed for more detailed and customizable watch faces with new complications and data displays.

Cellular Connectivity

Apple Watch Series 4: Sports & Fitness In-Depth Review | DC Rainmaker

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.

Water Resistance

Are Apple Watches waterproof? Everything you need to know | TechRadar

The Series 4 maintained the water resistance rating of its predecessors, allowing users to use it for swimming and other water-related activities.


How to Choose the Right Apple Watch Band Size - MacRumors

The Series 4 was compatible with the same bands as previous models, making it easy for users to switch between bands they already owned.

Operating System

watchOS 4: The MacStories Review - MacStories

The Series 4 initially launched with watch OS 5, which introduced various new features and improvements to the Apple Watch’s operating system.

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