The Oura Ring has consistently been an industry-leading wearable to track sleep, nighttime biosignals, and daily activity. We continue to improve upon each generation of the Oura Ring with new hardware sensors and software features. These previous generation rings and chargers are no longer available for purchase.
Oura Ring Generation 2
Oura Ring Generation 1
More Information
Oura Ring Generation 2
The Gen2 ring and charger are no longer available for purchase.
Hardware
The Gen2 ring was available in Balance and Heritage models, with Stealth, Black, Silver, or Gold finishes.
Generation 2 hardware included:
- Infrared (IR) LEDs for monitoring nighttime heart rate and respiratory rate
- Accelerometers to capture daily movement, steps, and automatically detected activities
- Negative temperature coefficient (NTC) sensors
- USB charger with white LED
- Titanium with physical vapor deposition (PVD) coating for Gold and Silver colors
- Titanium with diamond-like carbon coating (DLC) for Black and Stealth colors
Software
- Nighttime resting heart rate, heart rate variability, skin temperature, and respiratory rate measurements
- Steps and daily movement tracking
- Automatic activity detection, without location services
- We will continue to support Gen2 rings with routine software updates
Body clock and chronotype, Explore content, and personalized activity goals are available for Gen2 and Gen3 rings.
Oura Ring Generation 1
The Gen1 Oura Ring is no longer available for purchase. Customer support and firmware/software updates are also no longer supported for Gen1.
Hardware
The Gen1 ring was available in one model — in Stealth Black, Arctic White, or Mirror Black colors — and could be used to monitor sleep and daily activity.
Gen1 hardware and sensors included:
- Infrared (IR) LEDs, for nighttime biosignals and sleep stages detection
- 3D accelerometers, for daily activity and nighttime movement detection
- Temperature sensor, for nighttime skin temperature differences
- Made of Zirconia (ZrO2), with a medical grade, 100% non-allergenic, nickel free, and non-metallic inside molding
- USB connected charger with white LED
Software
Oura used these physiological data signals to calculate deep sleep, light sleep, REM sleep, and awake states. This information, together with your daytime activity data, indicated your recovery and readiness for the next day.
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