The FL340 Pulse Oximeter is one of the smallest ring pulse oximeters on the market capable of overnight-continuous monitoring for blood oxygen saturation and pulse rate. This oxygen monitor uses the same transmissive oximetry technology trusted by hospitals and health clinics. The FL340 fits most finger shapes and sizes. The device requires 2 hours of charging via the USB charging port for a full charge that provides up to 14 hours of usage. The battery lasts through the night for overnight-continuous monitoring.

Blood oxygen levels, heart rate, and body movements are automatically measured in one-second intervals when wearing the monitor. The FL340 features vibration notifications for alerting to low O2 levels, O2 saturation levels, and heart rate. Built-in smart vibration nudges the wearer to adjust their sleep posture when the device detects blood oxygen levels or heart rate outside of the threshold range set in the app.

The free professional mobile app and PC reporting software show a graphic sleep report, SpO2 condition trends, heart rate, and movement. The smartphone app includes settings to notify the wearer of low oxygen events. The event recording provides detailed information such as the time the event was detected, the frequency of the event, and body activity data. The PC software exports CSV format reports and includes the exact SpO2 and heart rate values in four-second intervals, providing data suitable for sleep studies.

The World's First Wearable Ring Oxygen Monitor

√ Track overnight blood oxygen levels and heart rate every second with medical accuracy.
√ Built-in vibrator alerts low blood oxygen levels or irregular heart rate events.
√ Totally Free APP and PC report.
√ Sleek, comfortable, elegant design.
√ Built-in Rechargeable battery.
√ Built-in memory.

Box contains:

1 x FL340 Smart Ring Oxygen Monitor
1 x Micro USB cable
1 x User Guide
1 Year Worry-Free Warranty

Software Download (28.5 MB)

The FL340 Ring Pulse Oximeter is worn on the finger for automatically detecting blood oxygen saturation, heart rate, and body movements. Measurements are recorded in one-second intervals during sleep. The FL340 uses the same transmissive oximetry technology that is trusted by hospitals and health clinics.

Ring Oxygen Saturation Monitor

This FL340 pulse oximeter automatically tracks your blood oxygen level, heart rate, and body movements in single-second intervals with accurate results.

Accurate and Reliable

FL340 pulse oximeter uses the same transmissive oximetry technology trusted by hospitals and clinics.

Smart Vibration Reminder

Built-in Smart Vibration nudges the wearer to adjust their sleep posture when the oximeter detects blood oxygen levels or heart rate outside of the threshold range set in the app.

Free App Shows Overnight Data

Users can sync data to the smartphone app to enable low oxygen event notifications. The event recording includes detailed information such as the time the event was detected, the frequency of the recorded event, and body activity data.

Take a Home Sleep Apnea Test

Download the monitor’s overnight oximetry data via the O2 Insight PC software* and share unlimited PDF or CSV format PC reports with your doctor. CSV format reports show exact O2 and heart rate values in four-second intervals, providing detailed data to reference for sleep studies.

*Note: Software is only compatible with Windows PCs. Software not compatible with Mac.

Our Guarantee

If for any reason you decide you are not satisfied with the product, you can easily and quickly contact our helpful customer support to get a refund. We just ask that you give the product a four week try. If you are still not satisfied, we will refund you, no questions asked!

Every Facelake Ring Oxygen Monitor comes with a 30-day Peace of Mind Guarantee. If you aren't 100% satisfied with your product, you can return the product within 30 days of purchase.

Viatom ViHealth Mobile App

Extended Specifications:

Weight: 0.53oz / 15g

Dimensions: 1.5" x 1.2" x 1.5"

Ring Perimeter: 2.4" - 3.4" / 61mm - 86mm

Wireless: Bluetooth 4.0 BLE

Battery: 3.7 Vdc, rechargeable lithium-polymer, 12h - 16h for typical use

Charge Time: 2 - 3 hours

Degree of Dust and Water Resistance: IP24

Recorded Parameters: Oxygen level, pulse rate, motion

Vibration Source:

Mobile App for iOS: iOS 9.0 or above, iPhone 4s / iPad 3 or above

Oxygen Level Range: 70% - 99%

Measure Interval: 1s

Display Interval in App Data Chart: 4s

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

Mobile App for Android:

Compatible Operating System: Windows 7 / 8 / 10, not compatible with Mac

FL340 Pulse Oximeter with APP & PC Software, Vibration Notification

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