Apple Watch Ultra 3 vs. Ultra 4 Buyer's Guide

The Apple Watch Ultra 4 is now available for pre-order, bringing a new health sensing system, more memory, and longer battery life over its predecessor. Last year, the Apple Watch Ultra 3 introduced a larger, more efficient display, satellite connectivity, 5G, and improved battery life. The Ultra 4 retains the same basic design and display, but focuses on more detailed health and fitness insights, new Audio Intelligence features, and further battery life improvement