You can use the ring without it, but in my opinion, it’s not worth it without full access to the app’s features. When it comes to sleep tracker accuracy in 2025, the landscape is nuanced. Headband devices like the Muse S Athena provide potentially higher accuracy for sleep stage detection but may be less comfortable for some sleepers.
Some people develop orthosomnia, an excessive preoccupation with sleep data that actually worsens sleep quality. Focus on how you feel during the day rather than what the app says about your night. Consider tracking less frequently, perhaps a few nights […]