Earable Neuroscience FRENZ Brainband 75g 7-in-1 EEG/EOG/EMG & Bone-Conduction Closed-Loop Sleep AI Band
75-gram medical-grade flexible neuro-sleep headband integrating a 7-in-1 polysomnography sensor suite (dry forehead EEG, eye-movement EOG, facial micro-muscle EMG, optical PPG SpO2/HRV, and 3D IMU) with dual pressure-proof hanging bone-conduction speakers for real-time closed-loop slow-wave pink-noise and CBT-i acoustic stimulation.
Editorial Rating Methodology (★ 4.7 / 5.0): This score is an internal editorial evaluation compiled by the RECIWO Labs editorial team—not a user poll or crowd-voted rating. It assesses published silicon compute efficiency (25%), optical/sensor/actuator engineering (25%), battery & thermal envelope (20%), SDK/software openness (15%), and price-to-specification value (15%) based on official manufacturer datasheets and public technical documentation. Learn more about our evaluation rubric →
Key Engineering Highlights
- Captures true clinical polysomnography signals—simultaneously separating cortical EEG waves, REM rapid-eye-movement EOG, and chin/facial muscle-relaxation EMG without gel
- Delivers partner-silent CBT-i voice guidance and phase-locked slow-wave pink noise through patented pressure-proof hanging bone-conduction transducers that never press into ear canals
- Automatically fades audio upon detecting N1/N2 sleep onset, boosts deep N3 slow-wave oscillations overnight, and triggers smart circadian wake-up during light sleep stages
Full Hardware Specifications
| Processor / Edge SoC | Multi-Channel Mixed-Signal Polysomnography AFE (EEG/EOG/EMG + Optical PPG) & Low-Latency BLE Audio SoC |
|---|---|
| AI Model Stack | Closed-Loop Real-Time Sleep-Stage Classifier (~88%+ PSG Concordance) Driving Dynamic Pink-Noise, Binaural & CBT-i Audio |
| Display & Optics | Screenless Zero-Light-Leakage Flexible Crown Band Wrapped in Hypoallergenic Breathable Fabric |
| Camera & Vision | None (Forehead Biopotential EEG/EOG/EMG + Optical Pulse Oximetry Telemetry Only) |
| Measured Weight | 75.0g Flexible Side-Sleeper Ergonomic Band w/ Patented Non-In-Ear Hanging Bone-Conduction Acoustic Chambers |
| Battery & Runtime | Up to 8–10 Hours Continuous Overnight Biopotential & Bone-Conduction Audio Runtime via Magnetic Charging Dock |
| Connectivity & I/O | Bluetooth Low Energy Sync w/ FRENZ Companion Sleep & Focus Neuroscience App |
| Sensors & Acoustics | Dry Forehead EEG + Eye-Movement EOG + Facial-Tone EMG + Optical PPG (HR, HRV, SpO2) + 3-Axis Accel/Gyroscope |
⚖️ Side-by-Side Comparison: Earable Neuroscience FRENZ Brainband 75g 7-in-1 EEG/EOG/EMG & Bone-Conduction Closed-Loop Sleep AI Band vs. AI Wearables & Audio Peers
Direct specification comparison against leading competing devices in the AI Wearables & Audio category.
| Specification | Earable Neuroscience FRENZ Brainband 75g 7-in-1 EEG/EOG/EMG & Bone-Conduction Closed-Loop Sleep AI Band (Current) | PLAUD NotePin Pro Magnetic AI Memory Capsule → | Limitless Pendant 2 All-Day AI Clasp → | Omi DevKit 2 (Open-Source nRF5340 AI Necklace) → |
|---|---|---|---|---|
| Brand | Earable Neuroscience | PLAUD.AI | Limitless | Based Hardware |
| Retail Price | $680 | $179 | $129 | $89 |
| Editorial Rating | ||||
| Edge SoC | Multi-Channel Mixed-Signal Polysomnography AFE (EEG/EOG/EMG + Optical PPG) & Low-Latency BLE Audio SoC | Custom Dual-Core Noise-Canceling DSP + BLE 6.0 SoC | ARM Cortex-M55 + Ethos-U55 microNPU | Nordic nRF5340 Dual Arm Cortex-M33 |
| AI Model Stack | Closed-Loop Real-Time Sleep-Stage Classifier (~88%+ PSG Concordance) Driving Dynamic Pink-Noise, Binaural & CBT-i Audio | Whisper-Large-v3 + Claude 4 / GPT-4o | Limitless Cloud Memory Engine | Custom Webhook / Local Whisper + Llama |
| Display / Optics | Screenless Zero-Light-Leakage Flexible Crown Band Wrapped in Hypoallergenic Breathable Fabric | Micro-perforated status LED + Linear haptic motor | Privacy Recording Status LED | Screenless + Programmable RGB Ring |
| Camera | None (Forehead Biopotential EEG/EOG/EMG + Optical Pulse Oximetry Telemetry Only) | None | None | Optional OpenMV Camera Hat |
| Weight | 75.0g Flexible Side-Sleeper Ergonomic Band w/ Patented Non-In-Ear Hanging Bone-Conduction Acoustic Chambers | 22.0g | 17.5g | 14.5g |
| Battery | Up to 8–10 Hours Continuous Overnight Biopotential & Bone-Conduction Audio Runtime via Magnetic Charging Dock | 24h continuous recording / 45-day standby | 100 hours active recording | 32h Continuous Opus Streaming |
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