Casio
PX-770
$899
Casio PX-770: a clear digital piano review for practice and comparison
8.4 Beginner 6.5 Night Practice 3.0 Portability 6.4 Touch Reality 7.0 Value
88 31.5 kg
Casio PX-850 Review
Casio PX-850: a clear digital piano review for practice and comparison
Discontinued 88 Keys 34.3 kg Tri-Sensor Scaled Hammer Action II Intermediate
Scores
Where to Buy
MSRP
$900
This model is discontinued. New-old-stock or used listings may still appear, so confirm the current listing status at retailers.
This model is discontinued; links may show used listings, remaining stock, or unrelated search results. 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
8.4| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 3.0 |
| Lesson Function | Yes | +1.5 |
| App Connectivity | No | +0 |
| Recording | Yes | +1 |
| Metronome | Yes | +0.5 |
| Transpose | Yes | +0.3 |
| Layer / Split | Yes | +0.3 |
| Preset Songs | 60 | +1.5 |
| Sound Variety | 18 sounds | +0.3 |
Night Practice
8.0| 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 | Tri-Sensor Scaled Hammer Action II | +0 |
| Volume Control | Yes | +1 |
| Bluetooth Audio | No | +0 |
Portability
3.0| Factor | This Piano | Points |
|---|---|---|
| Base Score | — | 5.0 |
| Weight | 34.3 kg | -1.5 |
| Width | 1393 mm | -0.5 |
| Battery | No | +0 |
| Foldable | No | +0 |
| Key Count | 88 keys | +0 |
Touch Reality
7.6| Factor | This Piano | Points |
|---|---|---|
| Key Action Quality | Tri-Sensor Scaled Hammer Action II (grade 6) | +3.6 |
| Key Count | 88 keys | +1.5 |
| Polyphony | 256 notes | +1.5 |
| Sound Modeling | Multi-dimensional Morphing AiR | +0.5 |
| Key Surface | ivory-feel | +0.5 |
Casio PX-850 review verdict
This Casio PX-850 review reads the published specifications from a comparison-first point of view: touch, sound, practice fit, value, and limits.
Casio PX-850 is best read as a console digital piano for players who already practise regularly. 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.
- • Use case: Its best fit is home practice.
Cons
- • Main limit: the need for maximum portability.
- • Furniture footprint should still be checked.
- • Used-market condition and support need careful checking.
Casio PX-850 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, 40W speakers, and a weight of 34.3 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. Because it is discontinued, the condition, accessories, and local support matter more than the original launch position. 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 PX-850 evaluation points
Casio PX-850 key action and touch
Casio PX-850 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 ivory feel 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 PX-850 is for
Casio PX-850 is most relevant for players who already practise regularly. 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 PX-850 sound and speakers
Casio PX-850 offers 18 sounds and 40W 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 PX-850
Before buying Casio PX-850, 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. Because it is discontinued, the condition, accessories, and local support matter more than the original launch position. For searchers looking for a Casio PX-850 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:
Kraft Music Watch on YouTube ↗
Specifications
| Keys | 88 |
| Key Action | Tri-Sensor Scaled Hammer Action II |
| Polyphony | 256 notes |
| Sounds | 18 |
| Weight | 34.3 kg |
| Speakers | 40W (×4) |
| Bluetooth | No |
| Key Surface | Ivory Feel |
| Sound Modeling | Multi-dimensional Morphing AiR |
| Headphone Jacks | 2 |
| Headphone Type | 6.3mm, 3.5mm |
| Headphone Optimization | Yes |
| USB MIDI | Yes |
| Line Out | No |
| Lesson Function | Yes |
| App Connectivity | No |
| Recording | Yes |
| Metronome | Yes |
| Transpose | Yes |
| Layer / Split | Yes |
| Preset Songs | 60 |
| Battery | No |
| Foldable | No |
| Dimensions (W×D×H) | 1393×299×815 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
$900
This model is discontinued. New-old-stock or used listings may still appear, so confirm the current listing status at retailers.
This model is discontinued; links may show used listings, remaining stock, or unrelated search results. These buttons open retailer search results and may include affiliate tracking where available. Stock and listing status can change without notice.
How It Compares
PX-850 vs AP-S200
the AP-S200 is stronger in beginner support. The PX-850 costs $199 less. Choose the AP-S200 if beginner-friendly features matters most.
Casio AP-S200 →PX-850 vs YDP-145
The PX-850 scores higher in piano-like touch, while the YDP-145 is stronger in beginner support. The PX-850 costs $200 less. Choose the PX-850 if piano-like touch matters most.
Yamaha YDP-145 →PX-850 vs SE-1
The PX-850 scores higher in quiet practice and piano-like touch, while the SE-1 is stronger in beginner support. The SE-1 costs $201 less. Choose the PX-850 if quiet practice matters most.
Donner SE-1 →Related Guides
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The number of keys on a digital piano seems like a simple spec, but the decision affects how you learn, what you can play, and how much you spend. The honest answer isn't "always get 88" — it depends on your goals. This guide walks through who genuinely needs a full keyboard, who is better served by fewer keys, and what the practical differences look like in daily practice.
Read more →Best Console Digital Pianos for the Home (2026)
A console digital piano is the closest thing to an acoustic upright you'll find without tuning and hammers. With a fixed cabinet, built-in three-pedal unit, and speakers voiced for the room, it behaves like a piece of furniture first and an instrument second. This guide explains what separates a great console from a middling one, which features actually matter at home, and which models deliver the best balance of touch, tone, and craftsmanship.
Read more →Best digital pianos for beginners: what actually matters in 2026
Choosing a first digital piano can feel harder than starting the music itself. A good beginner instrument is not the one with the longest feature list. It is the one that lets you sit down every day, change the volume quickly, practise with headphones, and build hand strength without making the keyboard feel like a toy. This guide focuses on what helps during the first six months, what is easy to overvalue, and when it is sensible to start with a portable model instead of a heavy console piano. If you learned piano years ago and are returning rather than starting fresh, the priorities are different — see our [guide for returning players](/en/guides/digital-piano-for-returning-senior-players/).
Read more →Best Digital Pianos for Church and Worship Use (2026)
A church piano has a harder job than a home piano. It needs to cover hymn accompaniment on Sunday morning, lead a praise set on Saturday night, back a choir rehearsal midweek, and survive the move between sanctuary and youth room. This guide explains what matters most in a worship context — reliable sounds, simple controls under stage lighting, clean connection to the sound desk — and which models serve that role without overspending. It also addresses when a stage piano or an arranger keyboard is a better fit than a standard digital piano.
Read more →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 PX-850