Oura Ring 4 Black Size:Size 6

Oura Ring 4 Black Size:Size 6Expertly crafted for quality and precision, Oura Ring 4 provides valuable insights into your holistic health sleep, activity, stress, heart health, cycle and more. Key Features: SIZE BEFORE YOU BUY Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. OURA MEMBERSHIP First month of membership is free with your purchase, $6. 99 mo afterwards. Offer available to new members only. Or opt for the annual

The NotePin easily snaps into place with a secure magnetic connection and stays in place while charging

Magnetic Attachment – Securely snaps your device and keyboard together

Watch band only

Data Sync: Real-time heart rate data

Easy to install with a compact design that mounts to your crank arm

Capacity: 300mAh

950mAh battery keeps you going through long reading or working sessions

Body Battery energy monitor

Effective Recording Range: 16

• Material: Medical-grade silicone

Gen 2 offers automatic sleep apnea monitoring

Read right out of the box with a robust built-in app that supports a wide range of formats and features for a distraction-free experience