The Oura Ring 4 in brushed silver size 12 uses Smart Sensing technology to track over 30 biometrics including sleep and heart health. Wear it for up to 8 days on a single charge to monitor your readiness daily.
Oura Ring 4 is the latest evolution of the revolutionary smart ring. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn't just measure your biometrics, it adapts to you, providing insights into over 30 biometrics, including sleep, readiness, activity, heart health, stress and women's health. Oura Ring quietly and comfortably monitors your health, and with up to 8 days of battery life, you can forget it's even on. Accuracy with Smart Sensing. Oura Ring 4 is powered by Smart Sensing, which adapts to your unique finger and activity.
Connectivity: Compatible with Bluetooth. Bluetooth 4.0 connection. Battery: Typical usage time of up to 5 days. Low usage time of up to 8 days. 1.33 hour charge. Physical specification: Size 12. Inner Ring Diameter 21.06mm.
Accessories included: Size-specific magnetic charging dock and a USB-C to USB-C cable. Manufacturer's 2 year guarantee.
