Apple’s new Sleep Score is rolling out beyond Apple Watch, bringing detailed sleep quality insights to many third-party wearables, including models from Garmin and Amazfit. Now in beta for some users testing iOS 26, the feature appears in the Apple Health app and can even generate a score from your existing sleep history once your device syncs.
What makes Sleep Score useful is how it blends simplicity with depth. Each morning, you’ll see a single score reflecting your overall sleep quality, with context and suggestions to help you improve. Apple’s algorithm weighs factors such as total sleep time, interruptions, sleep stages, consistency of your bedtime and wake time, and more. It’s built on data from more than 5 million nights of sleep collected in the Apple Heart and Movement Study and is informed by guidance from leading sleep medicine organizations.
Key takeaways
– Works with Apple Watch and many third-party wearables that track sleep and sync data to Apple Health
– Uses historical data to generate a score right away—no need to wait days for a baseline
– Considers duration, disturbances, sleep stages, and schedule consistency for a fuller picture of sleep quality
– Offers insights and tips to help you build better sleep habits
– Reported differences between Apple’s Sleep Score and brand-native scores (such as Garmin or Zepp) are normal due to varying algorithms
Compatibility and availability
– Apple Watch: Available on-watch for devices running watchOS 26, including Apple Watch Series 6 or later, Apple Watch SE (2nd generation) or later, and all Apple Watch Ultra models
– Third-party wearables: Available when your device supports sleep tracking and is connected to Apple Health
– Rollout: Currently in beta with iOS 26 testers; broader release is expected on September 15
– Announced alongside: Watch Series 11, Watch SE 3, and Watch Ultra 3
How to get started
– Update your iPhone to the latest iOS 26 beta (or the public release when available)
– Ensure your smartwatch or fitness tracker is set to record sleep
– Open the Health app and enable sleep data permissions for your device
– Allow Apple Health to read your sleep data; historical data will help generate your first score
Why scores may differ from your wearable’s app
Each company uses its own scoring logic and weightings. Apple’s approach focuses on medically informed guidelines and large-scale study data, so it may not match the numbers you see in Garmin, Zepp, or other companion apps. Differences don’t necessarily mean one score is “right” and another is “wrong”—they reflect distinct models emphasizing different factors.
Bottom line
Sleep Score in Apple Health aims to make your nightly rest easier to understand and improve, whether you wear an Apple Watch or a compatible third-party device. With data-driven scoring, actionable insights, and support for historical sleep records, it’s shaping up to be a valuable upgrade for anyone serious about sleep tracking.
