Apple Watch Series 12 and Ultra 4 review: More personal than ever before

The Apple Watch Series 12 and Apple Watch Ultra 4 are the latest additions to the Apple Watch lineup, both emphasizing health tracking advancements. These devices maintain the design of their predecessors, featuring similar aesthetics. The Ultra 4 comes in two titanium finishes – Natural and Black, while the Series 12 is available in three materials: aluminum, titanium, and ceramic.

The Series 12's design adjustments are subtle, with a 2% smaller display area and a 1mm wider casing. Despite these changes, the watch's display still covers the entire edge of the casing. The Series 12 is available in aluminum, titanium, and ceramic finishes. The titanium version comes in Radiant Gold and Natural finishes, with Radiant Gold being the closest to real gold.

The ceramic version is available in Night Blue and Pearl White finishes, with Pearl White being a softer off-white. The most significant upgrade in the new Health Sensing System is the ability to capture heart rate readings every five seconds, regardless of activity. This provides more frequent and accurate data, allowing users to understand the impact of daily activities on their heart rate better.

Additionally, the Apple Watch Series 12 and Ultra 4 offer improved calorie estimates and new complications on the watch face for quick heart rate monitoring.