Muse 2 vs Muse S: Which Brain-Sensing Headband Should You Buy?
Same brain-sensing channels, different jobs. Muse 2 wants you to meditate. Muse S wants you to fall asleep wearing it.
Muse 2 and Muse S Gen 1 both record the same 4-channel TP9/AF7/AF8/TP10 EEG at 256 Hz / 12-bit, and both run on the same Muse meditation app. The differences are everywhere else: Muse S uses a soft fabric headband you can sleep in, doubles the battery life to ~10 hours, adds a thermistor, and ships with sleep-onset programs that Muse 2 doesn't have. Muse 2 is cheaper and is still on choosemuse.com. Muse S Gen 1 is no longer sold direct — it's been replaced by Muse S Athena.
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Side-by-side specs
| Specification | Muse 2 | Muse S |
|---|---|---|
| Classification | ||
| Invasiveness | non-invasive | non-invasive |
| Primary modality | EEG | EEG |
| Direction | read | read |
| Electrodes | ||
| Total channels | 4 | 4 |
| Recording channels | 4 | 4 |
| Electrode type | dry-passive | dry-passive |
| Prep time | — | — |
| Acquisition | ||
| Sampling rate | 256 Hz | 256 Hz |
| ADC resolution | 12 bit | 12 bit |
| Connectivity | ||
| Protocols | bluetooth-le | bluetooth-le |
| Power | ||
| Battery life (active) | — | 10 hr |
| Physical | ||
| Weight | — | 41 g |
| Software | ||
| Raw data access | Yes | Yes |
| LSL support | — | — |
| SDK | ||
| Has SDK | — | — |
| Open source | — | — |
| Regulatory | ||
| FDA status | — | none |
| CE mark | — | — |
| Pricing | ||
| MSRP | USD 249.99 | USD 349.99 |
| Subscription required | — | — |
| Warranty | 12 months | — |
Verdict by axis
price
Muse 2
$249.99 vs $349.99 launch — Muse 2 is cheaper and still in the manufacturer's catalog.
Confidence: high
value-for-money
Muse 2
Muse 2 wins for buyers who want meditation and don't need overnight wear. Muse S Gen 1 is harder to recommend new because it's discontinued; on the third-party market, prices vary.
Confidence: medium
channel-count
tie
Both 4-channel, identical TP9/AF7/AF8/TP10 montage.
Confidence: high
signal-quality
tie
Same sampling rate, same bit depth, both dry-passive. Different electrode mechanics but no published SNR delta between them.
Confidence: medium
battery-life
Muse S
10 hours vs an unstated (community-reported ~5 hr) ceiling — Muse S clearly wins, and was designed for overnight wear.
Confidence: high
comfort
Muse S
Soft fabric headband vs rigid plastic + rubber. Muse S is the only one of the two you can comfortably sleep in.
Confidence: high
capabilities-meditation
tie
Same Muse meditation app, same brain-state feedback. Identical experience here.
Confidence: high
capabilities-sleep
Muse S
Muse S has the dedicated Go-to-Sleep Journeys; Muse 2 markets sleep but ships no equivalent program.
Confidence: high
capabilities-focus
tie
Both expose the same focus/calm metrics through the Muse app.
Confidence: high
raw-data-access
tie
Same Bluetooth-LE protocol; the Mind Monitor / Muse-LSL / BrainFlow paths work on both.
Confidence: high
availability
Muse 2
Muse 2 is currently for sale on choosemuse.com. Muse S Gen 1 is no longer sold direct — InteraXon ships Muse S Athena (MS-03) instead.
Confidence: high
ecosystem
tie
Identical: same Muse app, same third-party tooling.
Confidence: high
build-quality
tie
Different priorities — Muse 2 is the more durable build, Muse S the more comfortable. Both feel premium for the price.
Confidence: low
Pros & cons
Muse 2
In favor
- Cheaper ($249 vs $349 launch)
- Still on choosemuse.com — easy to buy new with full warranty
- Same Muse meditation experience
- Raw EEG accessible via Mind Monitor / Muse-LSL / BrainFlow
- Confirmed 12-month warranty
Against
- Rigid plastic + rubber — uncomfortable lying down
- No dedicated sleep program
- Battery life around half of Muse S (community-reported ~5 hr)
- No thermistor; gyro is present but not always exposed in apps
- Several spec leaves still unknown on primary sources (battery, weight, BT version)
Muse S
In favor
- Soft fabric headband — actually wearable in bed
- ~10 hours of continuous streaming
- Adds gyroscope, thermistor, and breath sensing on top of Muse 2's stack
- Go-to-Sleep Journeys: adaptive audio that responds to brain state
- Lighter (41 g) and head-circumference-adjustable (50–56 cm)
Against
- Discontinued by InteraXon — no longer on choosemuse.com
- Launched at $349.99 (vs $249 for Muse 2)
- Sleep staging is consumer-grade, not validated against polysomnography
- Glasses-wearers report poor fit
- Charges via micro-USB (USB-C only arrived with Muse S Athena)
Recommendations by use case
| Use case | Pick | Why |
|---|---|---|
| Daily meditation | Muse 2 | Same app experience, $100 cheaper, currently sold. |
| Overnight wear / sleep onset | Muse S | Soft fabric and the Go-to-Sleep Journeys are why Muse S exists. |
| Long sessions (> 4 hours) | Muse S | 10 hours vs ~5; Muse S also rests on the head more comfortably for extended wear. |
| Beginner neurofeedback | Muse 2 | Lower price and same metrics. |
| Travel | Muse S | 41 g, soft form, longer battery. |
| Recording raw EEG for research | Either | Same channels and protocol; the third-party tools are identical. |
| Buying new today with manufacturer support | Muse 2 | Muse S Gen 1 is no longer sold on choosemuse.com. |
| Multiple users sharing the device | Muse 2 | Plastic-and-rubber wipes down more easily than fabric. |
| Clinical EEG / sleep diagnosis | Neither | Neither device is FDA-cleared for diagnosis. |
Frequently asked
›Are the EEG signals identical?
Effectively yes. Both record from the same four sites (TP9, AF7, AF8, TP10) at 256 Hz with 12-bit resolution. The mechanical electrode design differs — Muse 2 uses silver and conductive silicone rubber, Muse S uses conductive silver ink on flexible fabric — but the resulting signal is comparable for the same montage.
›Can I sleep wearing Muse 2?
You can try, but it's not designed for it. The plastic-and-rubber shell sits proud on the forehead and isn't comfortable lying down. Muse S was specifically engineered for sleep — that's the headline difference.
›Is Muse S still being sold?
Not by InteraXon directly. The original Muse S (Gen 1, MS-01) is no longer on choosemuse.com — the line has moved through Gen 2 (MS-02, 2022) to Muse S Athena (MS-03, 2025). Third-party stock of Gen 1 still circulates, but if you're buying new, look at Athena.
›Which is better for sleep tracking?
Muse S — and it's not close. Muse 2 has no dedicated sleep program. That said, neither device is validated against polysomnography; both are consumer-grade sleep estimators.
›Do I need a different app for each?
No. Both pair with the same Muse app, and both work with the same third-party tools (Mind Monitor, Muse-LSL, BrainFlow). The differences are in firmware features and which programs unlock — not in the platform.
Bottom line
If meditation is the goal, buy Muse 2 — it's cheaper, currently in the catalog, and the experience is identical to Muse S during the day. If overnight wear and sleep tracking matter, you want a Muse S — but consider Muse S Athena (the 2025 MS-03) instead of hunting down the Gen 1 second-hand.