Wellue Pulse Oximeter O2Ring

Wellue O2Ring is a continuous, overnight pulse oximeter ring that monitors your oxygen levels while you sleep. Its finger vibration reminder gently nudges you when your oxygen levels drop, helping you maintain healthy breathing patterns throughout the night. And with its sleek, comfortable design, you'll hardly even notice you're wearing it.

It's designed to track your overnight SpO2, heart rate and PI precisely. The built-in alarm function makes O2ring the ideal device to improve your respiration.

Warranty: 2 Years

Finger Circumference: 55 mm – 80 mm (2.17" – 3.15")

Battery Specifications: Rechargeable lithium-polymer, 3.7 Vdc; 16 hours for typical use

Charge Time: 2-3 Hours

Connectivity: Bluetooth 4.0 BLE

Built-In Memory: 4 sessions, up to 10 hours for each session

Recorded Parameters: Oxygen level, pulse rate, motion

Oxygen Level Range 70%-100%

Pulse Rate Range & Accuracy: 30 to 250 bpm ±2bpm (±2%)

Sampling Interval: 1 second

App Data Display Interval: 4 seconds

Max altitude: 8500ft

Desktop Compatibility: Windows 7/8/10/11 & macOS 10.15.3 or later

Mobile Device Compatibility: iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later & Android: Version 5.0 or later, with Bluetooth 4.0 BLE