1st Note

Casio

Casio CT-S1 Review

Casio CT-S1: a clear digital piano review for practice and comparison

61 Keys 4.5 kg synth action Beginner

Scores

5.7 6.0 10.0 2.3 6.8 Beginner Night Practice Portability Touch Reality Value

Beginner

5.7

Night Practice

6.0

Portability

10.0

Touch Reality

2.3

Value

6.8

Where to Buy

MSRP

$219

Retail prices change, so check current pricing at retailers.

These buttons open retailer search results and may include affiliate tracking where available. Stock and listing status can change without notice.

How These Scores Were Calculated

Beginner

5.7
Factor This Piano Points
Base Score 3.0
Lesson Function No +0
App Connectivity No +0
Recording Yes +1
Metronome Yes +0.5
Transpose Yes +0.3
Layer / Split No +0
Preset Songs 11 +0.4
Sound Variety 61 sounds +0.5

Night Practice

6.0
Factor This Piano Points
Base Score 2.0
Headphone Jacks 1 +1
Headphone Type 3.5mm +0.5
Headphone Optimization No +0
Key Action Quietness synth action +1.5
Volume Control Yes +1
Bluetooth Audio No +0

Portability

10.0
Factor This Piano Points
Base Score 5.0
Weight 4.5 kg +3
Width 930 mm +1
Battery Yes +1.5
Foldable No +0
Key Count 61 keys +0.5

Touch Reality

2.3
Factor This Piano Points
Key Action Quality synth action (grade 2) +1.2
Key Count 61 keys +0.2
Polyphony 64 notes +0.4
Sound Modeling AiX Sound Source +0.5
Key Surface matte +0

How was this calculated? — Read our methodology

Casio CT-S1 review verdict

This Casio CT-S1 review reads the published specifications from a comparison-first point of view: touch, sound, practice fit, value, and limits.

Casio CT-S1 is best read as a compact keyboard-style piano for beginners and returning players. This review looks at weighted-key feel, sound, practice features, value, and realistic comparison points instead of treating the spec sheet as advertising copy.

Pros

  • Key count: 61 keys, a clear basis for digital piano comparison.
  • Touch: lighter keyboard action, so the review stays focused on practice feel.
  • Quiet practice: Headphone practice support.
  • Connectivity: USB MIDI.
  • Use case: Its best fit is home practice.

Cons

  • Main limit: the need for large sound reserves and heavy pedal work.
  • Stand cost and compatibility are separate checks.
  • Nearby current models may offer a better match for some players.

Casio CT-S1 is a compact keyboard-style piano that makes most sense when its strengths are matched to the right practice situation. The useful points are 61 keys, lighter keyboard action, 64-note polyphony, 5W speakers, and a weight of 4.5 kg. In a digital piano review, those details matter more than broad claims about being the best digital piano overall. For home practice, this model can be a sensible candidate if the layout and feature set match the way the instrument will actually be used. It is still worth comparing as a current buying candidate. The fairest comparison is with models in the same price and use class, where touch, speakers, headphone practice, and connectivity can be judged side by side.

Casio CT-S1 evaluation points

Casio CT-S1 key action and touch

Casio CT-S1 uses a lighter keyboard action. For a digital piano with weighted keys, the important question is not only whether the keys are heavy, but whether they help steady daily practice. The matte key surface is a useful comfort detail. The specification lists 64-note polyphony; that is enough for ordinary pieces, while more layered playing or heavy pedal use benefits from a higher number. This makes the key action a practical comparison point rather than a decorative specification.

Who the Casio CT-S1 is for

Casio CT-S1 is most relevant for beginners and returning players. The main use case is home practice. Strengths: portability and easy placement. Limits: the need for large sound reserves and heavy pedal work. Buyers comparing digital pianos should also check the stand, pedal, headphone jack, app support, and local availability before deciding.

Casio CT-S1 sound and speakers

Casio CT-S1 offers 61 sounds and 5W speakers. That is the sound side of the review: enough variety for practice, but the real experience depends on speaker power, headphone use, and the room where it will be played. The headphone output supports quiet practice. For lessons, apps, or recording workflows, the useful connectivity is USB MIDI.

What to know before buying the Casio CT-S1

Before buying Casio CT-S1, compare it with nearby alternatives on touch, sound, portability, and value. A stand may need to be budgeted separately. Pedal needs should be checked before purchase. It is still worth comparing as a current buying candidate. For searchers looking for a Casio CT-S1 review, the practical conclusion is to treat it as one candidate in a digital piano comparison, not as a universal answer for every player.

Demo Video

Source: Bonners Music Watch on YouTube ↗

Specifications

Keys 61
Key Action Synth Action
Polyphony 64 notes
Sounds 61
Weight 4.5 kg
Speakers 5W (×2)
Bluetooth No

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.

Where to Buy

MSRP

$219

Retail prices change, so check current pricing at retailers.

These buttons open retailer search results and may include affiliate tracking where available. Stock and listing status can change without notice.

How It Compares

CT-S1 vs NP-15

The CT-S1 scores higher in piano-like touch, while the NP-15 is stronger in quiet practice and value for money. Choose the CT-S1 if piano-like touch matters most.

Yamaha NP-15 →

CT-S1 vs PSR-E373

The CT-S1 scores higher in piano-like touch, while the PSR-E373 is stronger in beginner support and quiet practice. Choose the CT-S1 if piano-like touch matters most.

Yamaha PSR-E373 →

CT-S1 vs NP-35

The CT-S1 scores higher in portability, while the NP-35 is stronger in beginner support and piano-like touch. Choose the CT-S1 if portability matters most.

Yamaha NP-35 →

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Sources & transparency

Last verified
Data referenced from
Published spec sheet

How the 5-axis scores are calculated

We do not aggregate user reviews or star ratings (see methodology for why).

Spot a mistake or have a question about what's on this page? Let us know and we'll review it.

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