Apple Watch Ultra 4 Doubles Series 12 Battery Life at $799 as Both Gain S11 AI Features
Updated
Updated · PCMag · Sep 14
Apple Watch Ultra 4 Doubles Series 12 Battery Life at $799 as Both Gain S11 AI Features
3 articles · Updated · PCMag · Sep 14
Summary
$799 Apple Watch Ultra 4 stands out from the $399 Series 12 mainly on endurance and ruggedness, with Apple estimating 50 hours of battery life versus 24 hours.
Both watches share the new S11 chip, upgraded heart-rate tracking every five seconds, and Audio Intelligence, making everyday performance and core health features largely the same.
Ultra 4 adds satellite messaging, dual L1/L5 GPS, 328-foot water resistance and EN13319 dive certification, while Series 12 focuses on broader choice in 42mm and 46mm sizes and more materials.
That leaves the buying decision centered on use case: Series 12 is the cheaper mainstream option, while Ultra 4 targets off-grid, multi-day and diving needs.