Oura - Ring 5 - Smart Ring - Size Before You Buy with OR5 Sizing Kit - Size 13 - Black - (2026)

Specifications

• Operating System Compatibility

  Apple iOS, Android
  App Compatible

  Yes
  Built-in Storage

  0 gigabytes
  Metrics Measured

  Activity vs. inactivity, Calories burned, Duration of exercise, Duration of sleep stages, Hours slept, Resting heart rate, Skin temperature
  Protective Qualities

  Water resistant, Dust resistant
  Maximum Depth of Water Resistance

  328 feet