Casio
AP-750
$3,199
Casio AP-750: a clear digital piano review for practice and comparison
10.0 Beginner 8.0 Night Practice 1.5 Portability 8.8 Touch Reality 6.5 Value
88 53.6 kg
Casio GP-310 Review
Casio GP-310: a clear digital piano review for practice and comparison
88 Keys 78.5 kg Natural Grand Hammer Action
Bluetooth
Advanced
In our TOP 10 Touch Reality #1
Scores
Where to Buy
MSRP
$4,999
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
10.0| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 3.0 |
| Lesson Function | Yes | +1.5 |
| App Connectivity | Yes | +1.5 |
| Recording | Yes | +1 |
| Metronome | Yes | +0.5 |
| Transpose | Yes | +0.3 |
| Layer / Split | Yes | +0.3 |
| Preset Songs | 60 | +1.5 |
| Sound Variety | 35 sounds | +0.5 |
Night Practice
8.5| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 2.0 |
| Headphone Jacks | 2 | +2 |
| Headphone Type | 6.3mm, 3.5mm | +1.5 |
| Headphone Optimization | Yes | +1.5 |
| Key Action Quietness | Natural Grand Hammer Action | +0 |
| Volume Control | Yes | +1 |
| Bluetooth Audio | Yes | +0.5 |
Portability
1.5| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 5.0 |
| Weight | 78.5 kg | -3 |
| Width | 1434 mm | -0.5 |
| Battery | No | +0 |
| Foldable | No | +0 |
| Key Count | 88 keys | +0 |
Touch Reality
9.8| Factor | This Piano | Points |
|---|---|---|
| Key Action Quality | Natural Grand Hammer Action (grade 10) | +6 |
| Key Count | 88 keys | +1.5 |
| Polyphony | 256 notes | +1.5 |
| Sound Modeling | AiR Grand Sound Source | +0.5 |
| Key Surface | wood | +0.3 |
Casio GP-310 review verdict
This Casio GP-310 review reads the published specifications from a comparison-first point of view: touch, sound, practice fit, value, and limits.
Casio GP-310 is best read as a console digital piano for experienced players comparing serious practice instruments. 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: 88 keys, a clear basis for digital piano comparison.
- • Touch: weighted hammer action, so the review stays focused on practice feel.
- • Quiet practice: Headphone practice support.
- • Connectivity: USB MIDI, Bluetooth and app support.
- • Use case: Its best fit is home practice.
Cons
- • Main limit: the need for maximum portability.
- • Furniture footprint should still be checked.
- • Nearby current models may offer a better match for some players.
Casio GP-310 is a console digital piano that makes most sense when its strengths are matched to the right practice situation. The useful points are 88 keys, weighted hammer action, 256-note polyphony, 100W speakers, and a weight of 78.5 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 GP-310 evaluation points
Casio GP-310 key action and touch
Casio GP-310 uses a weighted hammer 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 wood key surface is a useful comfort detail. The specification lists 256-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 GP-310 is for
Casio GP-310 is most relevant for experienced players comparing serious practice instruments. The main use case is home practice. Strengths: a more piano-like touch. Limits: the need for maximum portability. Buyers comparing digital pianos should also check the stand, pedal, headphone jack, app support, and local availability before deciding.
Casio GP-310 sound and speakers
Casio GP-310 offers 35 sounds and 100W 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, Bluetooth and app support.
What to know before buying the Casio GP-310
Before buying Casio GP-310, compare it with nearby alternatives on touch, sound, portability, and value. The stand is included, which simplifies the purchase. A damper pedal is included, though some players may still want a fuller pedal unit. It is still worth comparing as a current buying candidate. For searchers looking for a Casio GP-310 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
Video coming soon for this model
We embed videos from manufacturer official channels and trusted reviewers. As soon as a suitable demo or review is available, it will appear here.
Specifications
| Keys | 88 |
| Key Action | Natural Grand Hammer Action |
| Polyphony | 256 notes |
| Sounds | 35 |
| Weight | 78.5 kg |
| Speakers | 100W (×6) |
| Bluetooth | Audio + MIDI |
| Key Surface | Wood |
| Sound Modeling | AiR Grand Sound Source |
| Headphone Jacks | 2 |
| Headphone Type | 6.3mm, 3.5mm |
| Headphone Optimization | Yes |
| USB MIDI | Yes |
| Line Out | No |
| Lesson Function | Yes |
| App Connectivity | Yes |
| Recording | Yes |
| Metronome | Yes |
| Transpose | Yes |
| Layer / Split | Yes |
| Preset Songs | 60 |
| Battery | No |
| Foldable | No |
| Dimensions (W×D×H) | 1434×489×963 mm |
| Stand Included | Yes |
| Pedal Included | Yes |
Spec terms are explained in the glossary. Glossary →
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Recommended Accessories
🪑
Stand
Stand included
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
$4,999
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
GP-310 vs CLP-845
The GP-310 and CLP-845 score very similarly across the main review axes. The CLP-845 costs $1,000 less.
Yamaha CLP-845 →GP-310 vs CLP-785
The GP-310 scores higher in piano-like touch. The CLP-785 costs $499 less. Choose the GP-310 if piano-like touch matters most.
Yamaha CLP-785 →GP-310 vs CA-501
The GP-310 scores higher in piano-like touch. The CA-501 costs $1,000 less. Choose the GP-310 if piano-like touch matters most.
Kawai CA-501 →Related Guides
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Read more →What reviewers say online
A synthesis of recurring points from price-comparison sites, Amazon reviews, music-store staff videos and forum threads. Not a star-rating average — we read across multiple reviews and pulled out the points that came up repeatedly.
The Casio GP-310 is the mid-range model in the Celviano Grand Hybrid line, co-developed with the piano maker C. Bechstein. Across specialist reviews and retailer assessments, many reviewers rate it highly, saying "the wooden keybed's playing feel is close to a real grand" and "its three grand voices and 100W sound are among the best in its price class," while others point to the weakness of the voices other than piano and the weight.
Praised most often
-
Playing feel from a genuine wooden keybed and hammer mechanism
On the Natural Grand Hammer Action, co-developed with C. Bechstein, most say "I can't tell the difference in feel from an actual grand" and "the hammers move on the same arc as a grand, with a natural return." The view is that the more advanced the player, from intermediate to advanced, the easier the difference is to feel.
-
The quality of the three grand piano voices
On the three lines — Berlin (warm and balanced), Hamburg (powerful) and Vienna (clear and slender) — reviewers say they "capture well the character of the pianos they are based on."
-
The spread of the 100W, 6-speaker sound
On the Grand Acoustic System, reviewers notably find that it "resonates in three dimensions across the whole room without an external amp." They report high satisfaction playing it at home.
-
Value for money against higher-end rivals
Reviewers find it is "cheaper than comparable models from more famous brands, and in some respects its authenticity of feel actually surpasses them." The smaller footprint than an upright is also credited.
Common cautions and criticisms
-
Voices other than piano are weakly developed
Reviewers point out that "with the effort going into the grand voices, the other voices are thin." Some say the harpsichord has no key-off samples and the electric pianos leave something to be desired.
-
Heavy, so its location is fixed
At 78.5kg it is heavy, so the standard framing is that it is "treated entirely as furniture and cannot be moved casually."
-
In the same price class as higher-end consoles
It sits in a price class compared with higher models of the Yamaha CLP and Roland HP and with Yamaha's AvantGrand line, and reviewers say that in the end a side-by-side play-test is needed.
By source
-
Specialist review sites
Specialist sites such as MusicRadar and azpianoreviews centre on the wooden keybed's playing feel and the grand voices, rating it highly as a serious instrument for advanced players.
-
Retailer reviews & videos
Retailers such as Merriam Music and Thomann credit the playing feel that approaches an acoustic grand and the space saving, while flagging the weakness of the voices other than piano as a caveat.
-
Head-to-head comparisons (vs GP-510 / higher-end rivals)
In comparisons with the GP-510 and higher models from other brands, reviewers note that the keybed and sound source are shared, and that the difference from the GP-510 lies mainly in the build of the cabinet and speakers.
Net take
On balance, the GP-310 is a model that earns high marks in international reviews as "a serious instrument for those who put playing feel first." The wooden keybed co-developed with Bechstein, the three grand voices and the 100W sound are the central plus points, making it a candidate for those left wanting more by plastic keys. The weakness of the voices other than piano and the weight call for some acceptance, however, and a side-by-side play-test against same-price higher-end Yamaha and Roland models is the realistic course.
We do not compute a numeric star average. The points below are recurring themes we identified by reading across multiple reviews.
Sources & transparency
This page is written by the operator, who has run the piano-learning site Piano Juku since 2017, based on published manufacturer specifications. We are not a retailer or tied to any maker — every model is compared by the same criteria. About the operator
- 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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Casio GP-310