Electric Piano: A Complete Buyer's Guide

Buying an electric piano is one of those decisions that's easy to get right — once you know what to look for. There are a lot of options at every price point, and the differences between them matter more for some people than others. Here's a friendly, no-nonsense guide to the specs that actually affect your playing, and how to match them to what you need.

Start with How You'll Use It

Before you look at a single product, be honest with yourself about three things: who's playing it, where it'll live, and what you'll be playing. A child learning their first pieces at home needs something quite different from an adult gigging musician who needs a stage instrument to plug into the PA. Getting that context right first makes every other decision much easier.

• Home learner: prioritise weighted keys, built-in speakers, and a price you can live with if interests change.
• Serious player: graded hammer action, 88 keys, good pedal compatibility, and a quality sound engine.
• Performing musician: portability, a stage piano without internal speakers, multiple outputs, and robust build quality.

Key Action: The Most Important Feature

The feel of the keys is the single most important thing when choosing an electric piano. If the action doesn't feel right, no amount of beautiful tone will make up for it — your technique suffers, and practising feels like a chore rather than a pleasure.

Look for weighted keys as a minimum for anyone intending to develop real piano technique. The upgrade to graded hammer action (heavier in the bass, lighter in the treble, like an acoustic piano) is meaningful and worth the extra cost for players above beginner level. Some manufacturers label their graded actions differently: Yamaha uses GH3 and GH3X, Roland uses PHA-4 Standard and PHA-4 Concert, Kawai uses RHCII and GF actions. The naming varies but the principle is the same.

Try the action before you buy if you possibly can. Many music shops have floor models; half an hour on two or three different instruments tells you far more than a spec sheet.

Number of Keys

Acoustic pianos have 88 keys, and serious electric piano players should generally aim for the same. The notes at the extreme low and high end are used more than beginners expect — baroque and classical repertoire especially requires the full range. Stage pianos sometimes offer 73 keys as a lighter, more portable option; that's a reasonable compromise for gigging players focused on pop, jazz or contemporary styles.

76-key instruments occupy a middle ground but are less common. If you're unsure, start with the assumption that 88 is correct, and move to 73 only if weight and portability are genuine priorities.

Polyphony: Don't Overlook This

Polyphony is the number of notes the instrument can play simultaneously. This matters most when you're using the sustain pedal: every note continues to ring until it decays, and complex chords layer up quickly. Budget instruments with 64-note polyphony can run out mid-piece; 128 polyphony is a practical minimum for anything beyond simple melodies. Better instruments offer 256 or more.

Sound Engine Quality

How the instrument sounds depends on the quality of its samples and sound engine. At the entry level, instruments typically use a single recorded note per key, per velocity range — it works, but the transitions between velocity layers can be audible. Better instruments record multiple samples per note across many dynamic levels, and apply physical modelling of resonance (the way strings sympathetically vibrate in an acoustic instrument). The sonic difference is real, though it takes a trained ear to appreciate at lower dynamic levels.

Brands with consistently well-regarded sound engines include Yamaha (particularly the CFX and Bösendorfer samples used in premium models), Roland (SuperNATURAL modelling), and Kawai (Harmonic Imaging XL). For a steer on which instruments offer the best value at different price points, see the best electric pianos for the money.

Connectivity

Consider what you'll connect the instrument to:

• Headphone output: Essential for home practice; virtually all instruments have one.
• Line out / audio out: For connecting to a PA, amp or recording interface. Check whether it's stereo (two outputs) or mono.
• MIDI / USB: For connecting to a computer or recording software. USB-MIDI is now standard on most instruments; traditional 5-pin MIDI ports are still found on better models.
• Pedal inputs: At minimum, a sustain input. Better instruments add sostenuto and soft pedal inputs, and some support half-pedalling for more expressive control.

Built-in Speakers vs. Stage Piano

If the instrument is for home use, built-in speakers are a significant convenience — no need to source an amp or monitor. If it's primarily for live performance, a stage piano without speakers keeps weight down and gives you a cleaner signal to the PA. Some instruments, like the Roland FP series and Yamaha P series, occupy useful middle ground: adequate speakers for practice, plus good connectivity for performance.

What to Avoid

• Unweighted keys on a first electric piano. Technique learned on light, spring-loaded keys doesn't transfer well to acoustic or weighted instruments. If the first instrument has poor action, it actively works against the player.
• Very low polyphony (32 or below). Even for beginners, this will cause audible note-dropping with the sustain pedal engaged.
• Bundled stands and benches of poor quality. A wobbly stand makes practice uncomfortable; a poorly proportioned bench causes bad posture. These extras are worth sourcing separately if the bundled versions feel flimsy.

The Bottom Line

An electric piano with weighted or graded-hammer keys, 88 notes, and 128 polyphony covers most players' genuine needs from beginner level upward. Spend more to get a better sound engine and action; spend less only if the use case genuinely justifies it. For more on what different types of instrument offer, the electric piano overview covers all the key distinctions.

Frequently Asked Questions