Digital Piano: A Complete Buyer's Guide

Choosing the right digital piano is one of those decisions that rewards a bit of patience. Get it right and you have an instrument you will want to sit at every day; get it wrong and you end up with a piece of furniture that gathers dust. This guide walks through every decision — from key action to connectivity — so you can buy with confidence.

Set Your Budget First

Digital pianos span an enormous price range, from around £200 to well over £3,000, and the differences at each tier are real. Before looking at specific models, decide what you can comfortably spend. As a rough guide:

• Under £400 — entry-level weighted action, adequate sound. Suitable for absolute beginners who are not yet committed long-term.
• £400–£800 — noticeably improved key feel, better speaker systems, richer sampling. The sweet spot for most home buyers.
• £800–£1,500 — graded hammer action with escapement simulation, high-quality polyphony, superior speaker placement. Instruments that will last a serious student for years.
• £1,500 and above — concert-grade action, multi-speaker cabinet systems, physical modelling alongside sampling. For the dedicated player who wants to avoid compromising at home.

The Single Most Important Spec: Key Action

Nothing matters more in a digital piano purchase than how the keys feel. If the action does not encourage you to sit and play, the instrument will not be used. Look for:

• Graded hammer action (GHA) — heavier in the bass, lighter in the treble, mirroring a real grand. This is what you want for genuine piano technique.
• Escapement simulation — a slight notch in the key travel that replicates the let-off point of an acoustic piano action. Found on mid-to-upper-range instruments and genuinely useful for serious playing.
• Ivory and ebony simulation textures — textured key surfaces that absorb moisture slightly, reducing slipping during long practice sessions.

If at all possible, visit a shop and play the instrument before committing. No description quite captures how an action feels; ten minutes at the keyboard tells you more than any specification sheet.

Sound Source: Sampling vs Physical Modelling

Most digital pianos use multi-layer sampling — recordings of an acoustic grand at different velocities, layered so the instrument responds dynamically. High-quality sampling (Yamaha CFX, Roland Grand Model C, Kawai SK-EX) produces excellent results. More advanced instruments add physical modelling, which mathematically simulates string resonance, damper noise and the acoustic interactions of a real piano. The best implementations — Kawai's Harmonic Imaging XL, Roland's SuperNATURAL Piano Modelling — are impressive enough that many players find them indistinguishable from recorded samples at a blind test.

Polyphony — the maximum number of simultaneous notes — should be at least 128 voices. Complex pieces with sustained pedal use can eat through voices quickly, and cheap cut-offs are audible and distracting.

How Many Keys Do You Need?

The standard acoustic piano has 88 keys, and for any serious piano study — especially classical repertoire — you want all 88. Some entry-level models offer 73 or 76 keys, which covers most pop and jazz repertoire but will be limiting for Beethoven sonatas or anything that uses the extreme registers. The full 88-key range is the right choice for anyone studying with a teacher or working towards exams.

Console vs Portable: Which Type Suits You?

This depends entirely on how and where you plan to use the instrument.

• Console digital piano — a fixed cabinet with built-in stand and speaker system, three pedals, and a lid. Designed to live in one place. Looks most like a real piano and typically sounds best, because the cabinet is designed to complement the speaker system. The right choice for home practice.
• Portable stage piano — no built-in cabinet or speakers; connects to an amplifier or headphones. Light enough to transport. Ideal for musicians who gig or teach in multiple locations, or who already have a good audio setup.

Connectivity: What You Might Actually Use

Modern digital pianos offer a range of connections. Here is what each does and whether you are likely to need it:

• USB-MIDI (USB to Host) — connects to a computer or tablet for use with apps (Flowkey, Simply Piano), notation software (Sibelius, MuseScore) or a DAW (GarageBand, Logic, Ableton). Highly recommended; it is the most useful connection on the instrument.
• Bluetooth MIDI/Audio — wirelessly connects to apps and devices. Convenient, though latency can occasionally be an issue with older devices.
• Headphone output — essential for quiet practice. Better instruments include a binaural mode through headphones, which adds spatial realism.
• Line out — connects to an external speaker or amplifier. Useful for performance or for connecting to a home hi-fi.
• Aux in — plays backing tracks through the piano's speaker system. A small but practical convenience.

Pedals: Do Not Overlook Them

A proper three-pedal unit — sustain, soft (una corda) and sostenuto — is worth having, especially if you plan to work through classical repertoire. Half-pedal sensitivity on the sustain pedal is important for expressive playing; it allows you to add partial sustain rather than the binary on/off of cheaper pedal systems. Most console models include this as standard; portable models often ship with a simple single sustain pedal and offer an optional triple-pedal unit as an accessory.

Worth Knowing Before You Buy

A few practical points that do not always appear in product listings:

• Check the bench height — many bundled benches are not height-adjustable. An adjustable stool is worth purchasing separately.
• Speaker placement matters — forward-facing speakers project sound toward you; downward-facing speakers bounce sound off a surface, creating a more acoustic-like resonance. Both have merits; the arrangement affects the perceived sound of the instrument in the room.
• Factory warranty — most reputable brands offer two to three years. Keep the receipt and register the instrument.

Once you have narrowed down your requirements, our guide to the best digital pianos for the money highlights which models deliver the most at each price point. And if you are brand new to the instrument, the beginner's guide has specific advice on starting out. For a full explanation of what these instruments are and how they work, see our digital piano explained article.

The Bottom Line

Buy the best key action your budget allows. Sound quality matters, but feel is what keeps you coming back to practise. Graded hammer action, at least 128-voice polyphony, 88 keys and a USB-MIDI port cover the essentials for the vast majority of buyers. From there, it is a question of cabinet type, speaker quality and how much connectivity you anticipate needing.

Frequently Asked Questions