Apple's philosophy is to lag behind the competition when it comes to implementing features. They observe and refine before releasing the perfect iteration of their hardware or software like it is their own brand-new technology.
Apple Health, the Apple Watch, and all the associated metrics are great, but why doesn't Apple have an app that gives you a Readiness, Recovery, or Sleep score? The Oura Ring and Whoop products have these features, as do many of the Best Fitness Trackers, so why can't my Apple Watch tell me if I should spend the day in bed or run 100 miles?
