Very Good
Very good, links to research using muse devices would also also be interesting. . . . . including educational news and future development plans plus omparison graphs.

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Key Benefits
Athena - Opal is the first and only device combining EEG and fNIRS technology, offering unprecedented insights into brain activity, cognitive effort, and sleep optimisation. Its SmartSense EEG accurately detects brainwave patterns, refining your focus and boosting mental clarity. Complementing this, fNIRS blood flow tracking measures cognitive endurance, allowing you to build mental stamina effectively.
Athena delivers real-time feedback on focus and endurance, enabling smarter, data-driven cognitive training. Overnight, it tracks sleep stages, including light, deep, and REM sleep, and uses Digital Sleeping Pills, responsive bedtime stories that gently cue your brain for deeper, restorative rest. The ultra-light, breathable design ensures comfort during day or night, while a powerful battery sustains up to 10 hours of continuous use.
With Athena, you can enhance focus, improve mental endurance, and optimise recovery, ensuring peak cognitive performance and better daily productivity.
Specifications:
- Size Range: 43 - 63cm
- Weight: Approx. 41g
- Dimensions: Module: Approx. 6 × 3 × 1.5 cm; Headband: Adjustable length, approx. 48-63 cm, width approx. 3.25 cm
- Muse App Compatibility: Apple iOS 15, Android 8 or higher (Huawei devices not supported)
Materials:
- Pod: Polycarbonate plastic with soft-touch paint, magnets, and glue.
- Soft Band: 79.7% Cotton / 13.5% Polyester / 6.8% Spandex
- Electrodes: 20% silver content, 80% polyamide fabric (nylon)


Very good, links to research using muse devices would also also be interesting. . . . . including educational news and future development plans plus omparison graphs.
I definitely need to make sure I have sprayed water behind my ears and on the forehead to get a good connection
The best, I love it
I believe this is excellent and has contributed to enhancing my breathing techniques and meditation practices. The AI feedback is valuable; my sole recommendation is to focus on synchronizing the electrodes during sleep and maintaining the Musen, as movement during sleep often results in loss of synchronization and consequently, inaccurate data.
Totally redesigned for long lasting experience. Much better than Muse s II.
The Athena S is very well designed. The fit, build quality, and overall feel are excellent. All sensors connected very quickly, even though I have long hair. I followed the detailed setup instructions and had absolutely no problems. The app (I used the Pro version) worked very smoothly with the Athena S, and the Bluetooth connection was always immediate. The app is clear, intuitive, and nicely designed. The only small improvement I could mention would be the battery life. In the end, I decided to return the band because it didn’t provide the personal added value I had hoped for. This is purely my personal preference and not related to the device itself. The return process and refund also worked perfectly. Overall, a great company with excellent service. Keep up the good work!
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Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.