Belun Sleep System BLS-100
Overview
The Belun Sleep System BLS-100 is an FDA 510(k) cleared AI-powered medical device designed for in-home sleep apnea testing and comprehensive sleep analysis. It comprises the Belun Ring (BLR-100X), a comfortable, cableless wearable worn on the index finger, and proprietary deep-learning algorithms for data analysis.
The system records photoplethysmography (PPG) signals, oxygen saturation (SpO2), pulse rate (PR), heart rate variability (HRV), and actigraphy. Its advanced AI algorithms provide clinically validated sleep stages (Wake, NREM, REM) and estimate the Apnea-Hypopnea Index (AHI), including REM AHI and NREM AHI, which are crucial for understanding OSA phenotypes.
The Belun Sleep System facilitates multiple-night analyses, offering greater accuracy by minimizing the first-night effect and averaging night-to-night variability, a significant advantage over traditional in-lab polysomnography. It aims to speed up the diagnosis of obstructive sleep apnea (OSA) and assist healthcare professionals in personalizing treatment options and evaluating their efficacy.
Reviewed by Pouyan Golshani, MD — Interventional Radiologist
Key Features
- FDA 510(k) cleared for in-home sleep apnea tests
- AI-powered deep learning algorithms for analysis
- Provides complete sleep architecture (Wake, NREM, REM sleep stages)
- Estimates Apnea-Hypopnea Index (AHI), including REM AHI and NREM AHI
- Wearable Belun Ring (BLR-100X) for data collection
- Measures Oxygen Saturation (SpO2), Pulse Rate (PR), Heart Rate Variability (HRV), and Actigraphy
- Cableless design for patient comfort and minimal sleep disturbance
- Enables multiple-night analyses for enhanced accuracy
- Medical-grade accuracy validated in clinical trials
- Cloud-based platform for data analysis and reporting
Use Cases
- In-home sleep apnea testing and diagnosis
- Monitoring post-treatment effectiveness of Obstructive Sleep Apnea (OSA)
- Evaluating sleep-related breathing disorders in adult patients
- Assessing sleep quality and complete sleep architecture
- Providing data for personalized treatment options
- Identifying undiagnosed cases of sleep apnea
What Physicians Need to Know
The Belun Sleep System BLS-100 is an FDA-cleared, AI-powered wearable ring primarily designed for the evaluation of moderate to severe obstructive sleep apnea (OSA) and accurate sleep stage classification (Wake, NREM, REM) in a home setting. Physicians can leverage its multi-night testing capability for comprehensive trend analysis of OSA severity and autonomic nervous system responses. It's a valuable tool for convenient, patient-compliant home sleep apnea testing, offering clinically validated data for diagnosis and monitoring. It is not intended for acute neurological event detection or brain imaging analysis.
The Belun Sleep System BLS-100 utilizes proprietary deep-learning algorithms for data analysis, generating clinical reports in PDF format. Data is uploaded to a cloud for AI analysis (Belun Sleep AI). The device is part of an ecosystem that includes the Belun Management Software for healthcare professionals. Its integration into the broader Belun remoVital real-time remote vital signs monitoring system suggests capabilities for seamless data flow and alert generation for comprehensive patient management.
Details
| Category | Neurology AI, Wearables & Remote Monitoring (RPM) |
| Pricing |
Starts at $299.00 usd for hardware plus $85/month/device for ai-scoring subscription.
|
| Deployment | Wearable device (Belun Ring), standalone PC software (Belun Sleep AI), and cloud-based platform. |
| Compliance | |
| BAA Available | Unknown AI-estimated |
| HIPAA Compliant | Unknown AI-estimated |
| FDA Status |
1 AI-estimated The Belun Sleep System BLS-100 received FDA 510(k) clearance (K222579) on February 23, 2023, for in-home sleep apnea tests, intended to aid in evaluating moderate to severe sleep-related breathing disorders in adult patients suspected of sleep apnea. |
| Integrations | |
| EHR | Not specified |
| Specialties | Neurology, Pulmonology, Sleep Medicine |
What the Web Says
The Belun Sleep System BLS-100 is an FDA-cleared, AI-powered wearable ring designed for home sleep apnea testing (HSAT) and sleep stage classification. It offers a comfortable and convenient alternative to traditional in-lab polysomnography (PSG) by capturing high-resolution physiological data through a minimalist ring form factor. Clinical studies have shown a strong correlation between the Belun Ring's results and gold-standard PSG for detecting obstructive sleep apnea (OSA) and categorizing sleep stages.
Overall: PositiveStrengths
- FDA 510(k) cleared for both device and AI software for sleep apnea diagnosis and sleep stage classification.
- High diagnostic accuracy for moderate-to-severe OSA and sleep stage identification (Wake, NREM, REM).
- Comfortable, lightweight, and cableless ring design, minimizing sleep disturbance.
- Supports multi-night testing, which helps reduce the 'first-night effect' and averages out night-to-night variability for greater accuracy.
- Easy to use, with 100% of patients in trials completing the test without professional assistance.
- Provides comprehensive sleep architecture data, including AHI, sleep efficiency, and REM/NREM percentages.
Limitations
- Requires an active monthly subscription for AI-scoring, increasing long-term costs.
- May underestimate mild OSA cases, though it has excellent specificity for severe OSA.
- Limited specificity for mild OSA.
- Does not offer all-day tracking.
- Needs more frequent charging compared to some other options.
- Requires at least 6 hours of uninterrupted recording for accurate sleep parameters.
Based on reviews from: MedGrade, PubMed, Belun Technology, Sleep Review, ClinicalTrials.gov, ResearchGate, Reddit, Forbes Vetted, YouTube
Last updated: 2026-07-17
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