OURA Ring 4 Black Size 7 - Sleep, Activity & Womens Health - AI Advisor - 8-Day Battery

Meet OURA Ring 4

Introducing OURA Ring 4, the next evolution of the smart ring designed to sit lightly on your finger while delivering meaningful insights. Built in a sleek, all-titanium form, the ring uses Smart Sensing to adapt to your daily rhythm and provide data across more than 50 health metrics. Expect nuanced details about sleep quality, daily readiness, activity patterns, heart-related signals, stress indicators, metabolic signals, and womens health metrics. The aim is to help you understand how you feel across a typical day and night, without turning health tracking into a distraction.

With up to eight days of battery life, you can wear OURA Ring 4 through workouts, commutes, and evenings out without constant charging. Its low-profile design and comfortable fit make it easy to forget you’re wearing it—until you check the insights you’ve gathered. If you own multiple finishes, you can switch styles in the OURA App, keeping your look aligned with your day’s activities and wardrobe.

Key metrics and smart sensing

• Sleep stages and overall sleep quality help you spot patterns in nightly rest.
• Readiness and daily activity provide a sense of how your body has recovered and how you moved through the day.
• Heart health indicators and stress signals are tracked across day and night.
• Metabolic health signals and womens health metrics capture recurring patterns and cycles.

Designed for real life

• No screens or vibrations; wear it comfortably from morning to night and focus on the moment.
• Works with Android and iOS, with a streamlined app that shows trends over time.
• Sizing Kit included to help you find the perfect fit before you buy.
• Oura Membership included for the first month; after that, the ongoing plan is $5.99 per month.
• HSA/FSA eligible for the ring, chargers, and shipping in the purchase flow.

With multi-ring support, you can switch finishes as easily as your outfit. If you have two or more styles, the app makes it simple to switch between them, so your look can match your day—from workout to night out.