Which is better for a beginner?

Both work for a beginner. The P-45 saves about $70 and has the same 88 weighted keys and 64-note polyphony. The P-143B adds matte keytops and a USB audio interface, which helps if the student will record.

Is the P-143B worth the extra $70?

Yes if you will record into a computer or want the newer action and keytops. If you only practice with headphones and never record, the P-45 covers the same basics for less.

Which has the better keyboard action?

The P-143B uses Yamaha's newer GHC action with matte black keytops. The P-45 uses Graded Hammer Standard, which is older but still graded heavier in the low register. Try both if you can.

Can I record with the P-45?

Only as MIDI over USB. It has no built-in audio interface, so you need a separate interface or a cable from the headphone jack to record sound. The P-143B records audio over USB directly.

Do both include a pedal and power supply?

Both include a sustain pedal and music rest. The P-45 listing does not include a power adapter, so budget for a Yamaha PA-150. The P-143B includes an AC adaptor.

Which is more portable?

They are close. The P-143B weighs 24 lb 8 oz and is 52-3/16 inches wide. The P-45 is about 25 lb. Both fit in a slim 88-key gig bag.

Yamaha P-143B Digital Piano vs Yamaha P-45 Digital Piano

Buy the P-143B if you want the newer Yamaha action, matte black keytops and a USB audio interface that records straight into a computer. Buy the P-45 if you want the lowest price on a weighted 88-key Yamaha and can live with the older GHS action and no USB audio. The P-45 is $429.99 at Micheo Music as of November 5, 2026, and the P-143B is $499.99 at eBay as of November 5, 2026, a $70 gap.

Today the Yamaha P-45 Digital Piano costs $70.00 less at its best price.

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