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Model comparisonYamaha U3 and YUS5: same height, different instrument.
The U3 is part of the standard U Series. The YUS5 is the top of the YUS line. The current reference models are both 131 cm tall. Their dimensions and features are reference information, not a description of every used example or an availability promise. This guide covers what the maker distinguishes between them and what only an inspection of the individual instrument can tell you.
Published 23 October 2026 · 3 minute read · Written for buyers, not for any one instrument
Same height, same lineage.
The U3 and YUS5 are Yamaha upright models. Current maker references list both at 131 cm high. Use the model name to begin a comparison, then identify the specific instrument and production variant.
Yamaha Singapore's U Series specifications page lists the U3 at 131 cm high, 153 cm wide and 65 cm deep. The YUS Series specifications page lists the YUS5 at the same 131 cm height. Equal height does not establish equal string lengths, soundboard area or floor footprint. Check width and depth as well, using the measurements for the actual piano being offered.
Sources: Yamaha Singapore U Series and Yamaha Singapore YUS Series specifications. These are current model references, not specifications for every used piano from every production year.
Specification, preparation and market position.
Yamaha describes the YUS series as a separate line with its own materials and preparation. The current USA YUS specification identifies concrete features for YUS5, including:
- Key surfaces: Ivorite/WPC is listed for the YUS5 in that regional reference, rather than treating every Yamaha upright as having the same surfaces.
- Hammer moldings: walnut is listed for the YUS5 in that reference. Check the individual used instrument rather than assuming its components remain original.
- Preparation: Yamaha describes factory voicing and regulation for the YUS line. This is a maker’s description, not an independent guarantee about how a used piano will sound today.
Source: Yamaha USA YUS specifications. These are regional reference details, not a feature guarantee for all production years. On a used piano, what the instrument left the factory with is one thing; what it has now, after years of use and possible servicing, is another. A U3 that has been professionally regulated and voiced may feel closer to a YUS5 than the model name suggests. A YUS5 that has not been touched in fifteen years may not feel like one.
The model name is the starting point.
Used U3 and YUS5 pianos in Singapore come from different production years. The YUS line has been updated over its production history, and a used YUS5 may not have every feature of the current model. The same applies to the U3.
What matters on a used piano:
- Serial number and year: date the instrument using Yamaha's own serial number reference. Two pianos with the same model name from different decades are different instruments in different condition.
- Condition: hammer wear, tuning pin torque, soundboard, action regulation. These are inspected, not assumed from the model.
- Service history: what work has been done and what is still outstanding. Ask for specifics.
- Previous environment: where it stood, how the room was managed, whether air conditioning ran. Singapore humidity affects pianos over time.
The viewing checklist covers the full inspection routine. The sale page lists what to have confirmed in the written quotation.
Play them in the same room, on the same afternoon.
If both a U3 and a YUS5 are available, the comparison is straightforward: play the same passages on both, back to back, at the same volume, and then quietly. What you are listening for:
- Touch: how the key feels going down and coming back. Press slowly and press quickly. Repeat notes on a single key as fast as you can.
- Tone: play the same chord in the bass, the middle and the treble. Listen for warmth, clarity and evenness.
- Control at low volume: play as softly as you can. The one that lets you shape quiet notes more easily is usually the one that will suit daily practice.
- The player's preference: if the student or their teacher can be present, their opinion matters more than the model hierarchy.
Write down which you preferred and on what basis. Then compare the full quotations, including the instrument price, delivery, the first tuning and any covered work after the sale. A more expensive model name does not automatically mean a more expensive complete purchase.
U3 vs YUS5, answered.
What is the difference between a Yamaha U3 and a YUS5?
Current Yamaha references list both at 131 cm and distinguish features such as key surfaces and factory preparation. Those references do not establish the condition or fitted features of an older used piano. Confirm the serial number, variant and service history, then compare the actual instruments.
Is a YUS5 always better than a U3?
Not necessarily. A well maintained U3 may play and sound better than a neglected YUS5. The model name tells you what specification the piano left the factory with; its current condition depends on how it has been kept and serviced since. Compare the individual instruments rather than relying on model hierarchy alone.
How do I confirm a used YUS5 is available?
This guide does not establish how common either model is or promise current stock. Ask which instruments are available before travelling, and request the particular piano’s model and serial number.
Do current YUS5 specifications apply to older used examples?
Not automatically. The YUS line has evolved through production years and variants. A used YUS5 from an earlier era may differ from the current manufacturer specification in its action, hammer type and fitted features. Confirm the serial number, production year and any suffix, and check what the actual piano has rather than assuming it matches today's catalogue.
Where the rest is set out on this site: Yamaha U3 → Yamaha YUS5 → U1 vs U3 vs K300 → Viewing checklist → What the quotation covers → All guides →
Comparing a U3 and a YUS5?
Tell us your budget and who plays. Ask what is available before travelling, then compare the actual instruments at IMM.