Apple Watch adds all-new Readiness app, here's how it works

Apple introduced the Readiness app for Apple Watch Series 12 and Ultra 4 — a 0–10 readiness score based on activity, Vitals metrics and sleep. It works only on the new watches with the updated sensor system; pre-orders start at $399 and $799, release on 18 September.

• Readiness score from 0 to 10 with categories Recover, Pace Yourself, Ready and Go For It
• Uses activity and Training Load, daytime and nighttime Vitals, plus sleep score
• App unavailable on Series 11, Ultra 3 and SE 3 even with watchOS 27
• Pre-order: Series 12 from $399, Ultra 4 from $799, sales start 18 September