Apple Watch performs favorably in The Wall Street Journal’s health and fitness tracker showdown today. Here’s how Apple Watch Series 11 stacks up against the Oura smart ring and fitness bands from Fitbit and Whoop. WSJ technology columnist Nicole Nguyen writes about four different wearables and how they perform in various categories today. Specifically, Nguyen tests the $399 Apple Watch Series 11 against the similarly priced Oura Ring 5, the $100 Fitbit Air, and the Whoop MG sensor that works with a $199/year subscription. As part of the analysis, Nguyen completed a clinical sleep study with Stanford Health Care’s Sleep Medicine Center. This is where Apple Watch first shined: The Apple Watch clocked the same sleep duration, down to the minute (six hours and 52 minutes) and its sleep staging aligned most with the lab results. The Fitbit Air was a close second, followed by Oura.…