Review

Casio PX-S1100 review

Research-based editorial · Published 2026-09-24 · Updated 2026-09-24

Current model

Scout take

The PX-S1100 has a clear purpose: fit an 88-key piano into a slim, movable setup. Battery operation and line outputs add practical flexibility. The right buyer values that convenience and likes the action; the wrong buyer chooses it only because the case is thin without checking the playing position and controls.

Who it fits

Who should skip it

Model overview

The PX-S1100's strongest argument is convenience: a slim body and portable workflow. Compare its key feel and speaker behavior with Yamaha P-series, Roland FP, and Kawai ES models rather than choosing on thinness alone. Add the cost of a stable stand and proper pedal setup to the real budget.

Keyboard action

Piano Tone’s account includes ownership and a preference for the lighter Casio action compared with other instruments the reviewer used. That is useful individual experience, not a universal action ranking. Try chords farther back on the keys and repeated notes. The compact mechanism is a reason to audition carefully rather than a reason to rule the instrument in or out from photographs.

Piano sound

MusicRadar reviews the updated sound and speaker presentation positively in the context of this portable design. Listen at the volume you would use in a bedroom or apartment. A speaker demonstration and a direct audio recording answer different questions: one includes the room and the built-in drivers, while the other may bypass them. Compare headphones separately.

Controls and usability

Touch controls help keep the case visually uncluttered, but appearance and operation are different priorities. Check how easily you can change a sound, adjust a layer and confirm a setting. The included WU-BT10 handles Bluetooth audio and MIDI; keep track of the adapter when moving the instrument. USB audio recording to storage should not be confused with a computer USB audio interface.

Buyer fit

Choose the PX-S1100 if a shallow case, flexible placement and optional battery use solve real problems for you. Budget for a stable stand and a pedal arrangement that stays in place. Compare the P-225 and FP-30X if you want to prioritise another action or workflow. There is no benefit in saving a few centimetres if you prefer playing the alternative.

Pricing

A current US selling price has not been verified for this article. Check the instrument, stand, pedal, bench, delivery and return conditions as a complete purchase. Historical review prices are not current offers or MSRP.

Owner evidence

The evidence collected for this article does not establish a rate of failures or a recurring long-term ownership problem. We do not generalise from isolated comments or present reviewer preference as owner consensus.

Key specifications

Casio PX-S1100 — manufacturer facts; checked 2026-09-23
Statuscurrent
Observed priceNot verified — request a current regional quote
Keyboard actionSmart Scaled Hammer Action
Key constructionNot verified
Key surfaceNot verified
Escapement / let-offNot verified
Maximum polyphonyNot verified
Piano sound technologyNot verified
SpeakersNot verified
AmplificationNot verified
PedalsSP-34 optional
Bluetooth audioVia included WU-BT10
Bluetooth MIDIVia included WU-BT10
USB audio interfaceNot verified
USB MIDINot verified
Line outputsYes
HeadphonesNot verified
Dimensions (mm)Not verified
Weight (kg)Not verified
AppsCasio Music Space
WarrantyNot verified

Research disclosure

Digital Piano Scout has not physically tested this instrument. This is original research-based analysis using manufacturer documentation for facts and attributed third-party reviews for playing impressions. The source publications may have their own commercial relationships. No star rating or universal winner is assigned.

Sources and research

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