SereniBrain and FocusCalm are both consumer EEG headbands designed to help you train your brain. They both read your brainwaves and give you real-time feedback. But the similarities mostly end there.
These two devices take fundamentally different approaches to what they show you, how they train you, and what you can do with your data. Let's compare them honestly.
The Basics
| SereniBrain | FocusCalm | |
|---|---|---|
| Technology | EEG (electroencephalography) | EEG (electroencephalography) |
| Electrodes | Medical-grade hydrogel | Dry metal sensors |
| Brainwave bands tracked | 6 (delta, theta, alpha, SMR, beta, gamma) | Not disclosed (single composite score) |
| Price | $199.99 | $249 |
| Subscription | None | None (app is free) |
| Data export | Yes (CSV) | No |
Both devices use real EEG — they're reading actual electrical brain activity, not estimating from heart rate or movement. That puts them in a different category from devices like Mendi (which uses fNIRS) or basic meditation apps.
Brainwave Data: Granular vs Simplified
This is the biggest difference between the two.
SereniBrain shows you six individual brainwave frequency bands. You can see your alpha, theta, SMR, beta, delta, and gamma activity in real time and after each session. This means you can identify specific patterns — like whether your theta (associated with mind-wandering) is decreasing over time, or whether your SMR (associated with calm focus) is increasing.
FocusCalm takes a different approach. It processes your EEG data into a single "FocusCalm Score" from 0 to 100. Higher means more focused and calm. You don't see the individual frequency bands — just the composite number.
Which is better? It depends on what you want.
If you want simplicity — just a number that tells you "am I focused or not?" — FocusCalm's approach is easier to understand at a glance. There's no learning curve.
If you want to actually understand what your brain is doing — which frequencies are dominant, how they change across sessions, what patterns correlate with your best focus states — SereniBrain gives you significantly more information. You can't optimize what you can't see, and a single composite score hides a lot of detail.
Training Approach
FocusCalm uses brain-controlled games. You play simple games (like guiding a ball through obstacles) where the controls respond to your brain state. When you're focused, the game goes well. When you're distracted, it doesn't. It's gamified and engaging.
SereniBrain offers multiple training modes — focus, relaxation, meditation, and sleep preparation — each targeting different brainwave patterns. The feedback is real-time audio and visual cues that respond to your specific brainwave state. It's less "game-like" and more "training-like."
FocusCalm's gamification makes it more immediately fun, especially for people who find traditional meditation or neurofeedback boring. SereniBrain's approach is more flexible — you can train different states depending on your goal, not just "focus."
Electrode Technology
SereniBrain uses medical-grade hydrogel electrodes. These provide excellent signal quality because the gel creates consistent contact with your skin. The trade-off is that the gel pads need replacement every 2-3 months ($21.99 for a 3-pack).
FocusCalm uses dry metal sensors. No gel, no replacement parts, no ongoing cost. But dry electrodes are generally more susceptible to movement artifacts and can be less comfortable during longer sessions. Signal quality can vary depending on skin conditions, sweat, and how well the headband fits.
For short focus training sessions (5-15 minutes), dry electrodes work fine. For longer sessions or sleep tracking, hydrogel typically provides more reliable data.
Data Access and Export
SereniBrain lets you export your raw session data as CSV files. You can analyze trends in a spreadsheet, share data with a healthcare provider, or build your own visualizations. Your data belongs to you.
FocusCalm keeps your data within the app. You can view your scores and trends in the app, but there's no export function. If you want to do deeper analysis or keep a long-term record outside the app, you can't.
For casual users who just want to see their score improve over time, this doesn't matter much. For data-oriented users, researchers, or anyone who wants full control over their brain data, the lack of export is a significant limitation.
App Experience
FocusCalm's app is polished and game-focused. The brain-controlled games are well-designed and provide immediate, intuitive feedback. The UI is clean and modern. It also includes guided meditations and a "calm score" tracking feature.
SereniBrain's app is more data-focused. It shows your brainwave breakdown in detail, tracks trends across sessions, and provides feedback tailored to your chosen training mode. It's less flashy but more informative.
Comfort and Wearability
Both headbands are designed to be worn on the forehead. FocusCalm has a slightly thicker profile due to its rigid sensor housing. SereniBrain uses a soft fabric band with slim sensor modules.
Neither is uncomfortable for typical session lengths (5-20 minutes). For extended wear (sleep tracking), SereniBrain's softer design and hydrogel electrodes may be more comfortable, though individual preferences vary.
Pricing
| SereniBrain | FocusCalm | |
|---|---|---|
| Device | $199.99 | $249 |
| Subscription | None | None |
| Replacement parts | ~$44/year (gel pads) | None |
| Year 1 cost | ~$244 | $249 |
| Year 2 cost | ~$288 | $249 |
Pricing is very similar over the first year. SereniBrain is $50 cheaper upfront but has a small ongoing cost for gel pads. FocusCalm has no ongoing costs but a higher initial price.
Which One Should You Choose?
Choose FocusCalm if:
- You want brain-controlled games as your primary training method
- You prefer a single simple score over detailed brainwave data
- You don't need data export
- You want zero maintenance (no gel pads to replace)
- You find gamification more motivating than data
Choose SereniBrain if:
- You want to see all six brainwave frequency bands
- You care about data — tracking specific frequencies, exporting raw data, long-term analysis
- You want multiple training modes (not just focus — also relaxation, meditation, sleep)
- You want medical-grade signal quality (hydrogel electrodes)
- You prefer a lower upfront cost
- You want to use the headband for sleep tracking as well
The Bottom Line
FocusCalm and SereniBrain are both legitimate EEG devices for brain training. FocusCalm is the more polished, game-oriented option — it's fun, simple, and requires no maintenance. SereniBrain is the more data-rich, versatile option — it shows you more, lets you export everything, and costs less upfront.
If you're the kind of person who wants to understand what's happening under the hood — not just whether you're "focused" but which specific brainwave patterns are driving that state — SereniBrain gives you significantly more visibility for a lower price.