Apple Watch Series 12 is excellent, but I find myself missing this one software feature

“The Apple Watch Series 12, despite being a few generations old, still impresses with its always‑on heart‑rate sensor and a revamped Health app that introduces Readiness and Health Age metrics. However, the author laments the absence of WHOOP‑style sleep‑based day tracking, which would align workout data with the user’s actual sleep cycle rather than a fixed 24‑hour clock. This feature could enhance accuracy for late‑night exercisers and improve personalized coaching for U.S. consumers who prioritize data‑driven fitness insights. Expert Analysis: By adopting sleep‑aligned tracking, Apple could differentiate its health ecosystem from competitors, potentially driving higher engagement and subscription revenue for services like Apple Fitness+ in the U.S. market.”