Roland
FP-10
$500
Roland's entry point — premium key feel at a budget price
8.5 Beginner 4.5 Night Practice 5.0 Portability 7.1 Touch Reality 6.7 Value
88 12.6kg
View Details Casio
PX-S1100
The world's slimmest 88-key digital piano
MSRP
$700
Source: Sweetwater product page (manufacturer site unavailable) (2025-04-06)
88 Keys 11.2 kg smart scaled hammer action
Bluetooth
Scores
Our Verdict
If you want a piano that fits your life rather than the other way around — sitting on a desk, running on batteries, tucked away in a closet — the PX-S1100 makes it possible without compromising on key quality.
Pros
- ● Ultra-slim design — only 102mm deep, fits anywhere
- ● Battery powered (6×AA) — true portability
- ● Smart Scaled Hammer Action with ivory/ebony texture
- ● 192-note polyphony with Multi-dimensional Morphing AiR
- ● Bluetooth MIDI for Chordana Play app
- ● Touch-sensitive front panel controls
Cons
- ● Single 3.5mm headphone jack
- ● No Bluetooth audio (only MIDI)
- ● Bluetooth requires optional adapter (WU-BT10)
- ● No built-in lesson function
The PX-S1100 is for people who thought they didn't have room for a piano. It's thinner than most laptops are wide, light enough to carry in one hand, and runs on AA batteries. But unlike most ultra-portable instruments, it doesn't feel like a toy — the keys have real weight and the sound has genuine depth. You'll pay more than the CDP-S110, but the better key feel, richer sound, and battery capability make it worth the step up.
Technical Deep Dive
About the Key Action
The keys feel noticeably better than budget Casio models. Each key has its own individual weight, so the bass feels heavy and authoritative while the treble feels light and responsive. The white keys have a subtle ivory-like texture and the black keys feel like smooth ebony — both designed to keep your fingers from slipping and make playing feel more natural.
Who Is This Piano For?
You want a full piano but your living situation demands flexibility. Maybe you practice at the kitchen table and put the piano away before dinner. Maybe you bring it to the sunroom on weekends. Or maybe you simply don't have a permanent spot for an instrument. The battery power means you can play anywhere — even on the patio — without an outlet.
Specifications
| Keys | 88 |
| Key Action | Smart Scaled Hammer Action |
| Polyphony | 192 notes |
| Sounds | 18 |
| Weight | 11.2 kg |
| Speakers | 16W (×2) |
| Bluetooth | MIDI |
| Key Surface | Simulated Ebony Ivory |
| Sound Modeling | Multi-dimensional Morphing AiR |
| Headphone Jacks | 1 |
| Headphone Type | 3.5mm |
| Headphone Optimization | No |
| USB MIDI | Yes |
| Line Out | No |
| Lesson Function | No |
| App Connectivity | Yes |
| Recording | Yes |
| Metronome | Yes |
| Transpose | Yes |
| Layer / Split | Yes |
| Preset Songs | 60 |
| Battery | Yes |
| Foldable | No |
| Dimensions (W×D×H) | 1322×232×102 mm |
| Stand Included | No |
| Pedal Included | Yes |
Recommended Accessories
🪑
Stand
Stand not included (sold separately)
A sturdy X-stand or furniture-style stand is essential if one isn't included.
🎧
Headphones
Closed-back headphones with good bass response make practice sessions more enjoyable.
🎹
Sustain Pedal
The included pedal is usually basic. A half-damper pedal upgrade is worthwhile for expressive playing.
💺
Bench
An adjustable-height bench helps maintain proper posture during long practice sessions.
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