Muse S Athena vs Muse 2 — Side-by-Side

Muse S Athena vs Muse 2 (2026)

Muse 2 and Muse S Athena are the same brand’s entry and flagship — both four-channel dry EEG meditation headbands from Interaxon, both sharing the same mature content library. The Athena is the 2024 upgrade: it adds prefrontal fNIRS sensing, overnight sleep tracking and a soft sleep-friendly band, at roughly twice the price. The question is whether those additions are worth about $225 to you.

Muse S Athena or Muse 2: which is better?

WINNER: Muse S Athena

Muse S Athena wins overall — it does everything Muse 2 does, adds sleep tracking and fNIRS, and is the only Muse you can wear comfortably overnight. Muse 2 wins only on price.

Head-to-head breakdown

Muse S Athena vs Muse 2 — head-to-head comparison by criterion
Criterion	Winner	Why
EEG channels	Tie	Both: four dry EEG electrodes. Identical electrical brain signal.
Additional sensors	Muse S Athena	Athena adds prefrontal fNIRS optodes; Muse 2 has PPG heart rate. Athena’s sensor fusion is unique in the consumer market.
Sleep tracking	Muse S Athena	Athena includes EEG-based sleep staging; Muse 2 has none. The Athena is the only Muse you can sleep in.
Comfort and form factor	Muse S Athena	Athena: soft fabric band, designed for overnight wear. Muse 2: rigid headband, comfortable for 10–20 min sit-up sessions only.
Meditation content library	Tie	Both share the same mature meditation library — calm, focus, breath, body-scan, mood.
App and ecosystem	Tie	Same app, same Apple Health/Google Fit integration; Athena gets slightly more polish in the newest features.
Developer SDK access	Tie	Both: raw EEG via the third-party Muse Direct app; first-party SDK is limited on both.
Price	Muse 2	Muse 2: $249.99 one-time. Muse S Athena: $474.99 one-time. Muse 2 is about half the price.

Choose Muse S Athena

Choose Muse S Athena if you want sleep tracking on top of meditation, the most comfortable form factor for overnight wear, and the fNIRS addition for prefrontal sensing.

Choose Muse 2

Choose Muse 2 if meditation feedback is the only use case you have and the roughly $225 price difference matters.

The short version

Athena is Muse 2 with sleep tracking, fNIRS sensing and a sleep-friendly form factor, at about twice the price. If sleep matters, Athena. If you only want meditation feedback, Muse 2 covers it for about half the cost.

When is Athena the right pick?

For users who want one device that handles meditation by day and sleep tracking by night, Athena is the only Muse that works. The fNIRS addition gives the app a second, slower blood-flow signal, though there are no published data showing that it improves feedback accuracy. The soft sleep-friendly band is the form-factor reason most users move to Athena even before they value the new sensors.

When is Muse 2 the right pick?

Muse 2 remains the most cost-effective real-EEG meditation headband. If you wear another device for sleep (Oura, Whoop, Apple Watch) and only need EEG-feedback for sit-up meditation sessions, Muse 2 is the right shape — the content library is the same and the EEG signal is identical.

Common questions

Is Muse S Athena worth about $225 more than Muse 2?

If you want sleep tracking, yes — the Athena is the only Muse you can comfortably sleep in, and the EEG-based sleep staging is one of the strongest consumer sleep models on the market. If meditation is the only use case, Muse 2 covers it for about half the price.

Do Muse 2 and Muse S Athena use the same meditation content?

Yes — same app, same content library. The Athena adds sleep-specific sessions and a sensor-fusion neurofeedback module that Muse 2 cannot run, but the core meditation experience is identical.

Can I track sleep with Muse 2?

No. Muse 2 was not designed for overnight wear — the rigid headband is uncomfortable for sleep and the device has no sleep-staging pipeline. Sleep tracking is the headline upgrade in Muse S Athena.

What is fNIRS and does it matter?

Functional near-infrared spectroscopy — Athena’s prefrontal optodes measure blood-oxygenation changes in the prefrontal cortex alongside the EEG signal. In practical terms it adds a second, slower blood-flow signal to the EEG; there are no published data on whether it makes the app’s calm and focus scores more accurate.