OURA JZ90-54219-09 Horizon Smart Ring Silver

The Oura JZ90-54219-09 Horizon Smart Ring in Silver is a premium health and wellness wearable designed for 24/7 tracking. Crafted from titanium with a durable PVD coating, this ring offers a sleek, lightweight design with 100-meter water resistance. It provides comprehensive health insights including sleep stages, heart rate variability, resting heart rate, body temperature, activity, and SpO2. With up to 7 days of battery life and wireless charging, it seamlessly integrates with the Oura App on iOS 15+ and Android 8.0+.

Advantages

Advanced sensors (PPG, NTC temperature, accelerometer, gyroscope) deliver accurate health data. The Horizon design is fully round and comfortable for all-day wear. Bluetooth Low Energy ensures efficient connectivity. Oura Membership unlocks personalized insights, trends, and daily readiness scores.

Suitable for

• Health-conscious individuals seeking detailed sleep and activity tracking
• Users wanting a discreet, stylish wearable that works with iOS and Android
• People interested in monitoring heart rate, HRV, body temperature, and SpO2

Key specifications

• Brand: OURA
• Model: JZ90-54219-09
• MPN: OU-JZ90-54219-09
• EAN: 6430060153653
• Colour: Silver
• Material: Titanium with PVD coating
• Water resistance: 100 meters (330 feet)
• Battery life: Up to 7 days
• Charging: Wireless charging
• Connectivity: Bluetooth Low Energy (BLE)
• Sensors: PPG (Green & Red LEDs), NTC Temperature, Accelerometer, Gyroscope
• Compatibility: iOS 15+ / Android 8.0+
• Ring width: 7.9 mm, thickness: 2.55 mm
• Subscription: Oura Membership required for full features

Recommendations

For optimal performance, pair with the Oura App and keep firmware updated via OTA. The ring is not a medical device but provides valuable wellness data. Choose your ring size carefully using the sizing kit.