After two years of teaching on a Yamaha P-45 while my students’ parents debated between Casio and Yamaha, I’ve come to a conclusion that surprises most people: the brand on the front matters far less than the specific model, and the price difference between the two giants is often just geography, not quality.
I’ve owned a $200 Casio that sounded like a suitcase and a $6,000 slab that didn’t play better than a $1,500 one.
I’ve taught 30 students a week on both brands, and Mochi, my 65-pound labradoodle, has knocked into both of their stands.
Here is what actually separates Casio and Yamaha, and which one you should buy.
Why you should trust me
I’m Yuki, a classically trained pianist who has taught for 25 years and owned a dozen digital pianos, from a $200 Casio to a $6,000 slab. I keep a postal scale and a digital dB meter in my studio to measure action weight and volume consistency.
I test every instrument with the same three pieces: Bach’s Prelude in C, Chopin’s Nocturne in E-flat, and a blues improvisation.
I’ve also read hundreds of owner reviews over the years, and I track what breaks, what degrades, and what holds up.
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The P-45 is still the best budget keyboard Yamaha has ever made, and it is the best value in this category by a wide margin.
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Visit on Amazon →Yamaha P-71 | ~~$450 | Same as P-45, sold through Amazon | Same four-year degradation timeline |## How I picked and how I tested
I played each instrument for at least two weeks in my studio, not a showroom. I measured action weight with my postal scale, tested repetition speed with my metronome, and checked dynamic range by playing ppp passages from the Chopin Nocturne.
I also read the long-term owner reviews that matter: the ones written at month eight, not day one. I tracked failure timelines, complaint patterns, and whether the sustain pedal was so light it was uncontrollable.
The P-45 got the most scrutiny because it’s the most recommended budget piano, and the Casio Privia line got the same because it’s the most common alternative.
Our pick: Yamaha P-45
The P-45 is still the best budget keyboard Yamaha has ever made, and it is the best value in this category by a wide margin. At around $450, you get a fully weighted action that a 30-year pianist named Michael Mitchell described as "incredibly solid," with a sound that one reviewer said would fool you into thinking you were playing "a reasonably high quality upright piano." That is remarkable at this price.
The action has a good weight to it, not too heavy and not mushy, and the dynamic range is wide enough that you can play ppp and hear the difference from pp.
It weighs 25 pounds, which means you can carry it to a gig or a lesson without breaking your back. Bach’s trills come through cleanly, the Chopin nocturne sustains beautifully, and the blues improvisation has enough rhythmic bite to keep things honest.
One reviewer, Weston N., documented that after four years the action does noticeably degrade, keys get mushy, and clicking sounds develop.
That timeline is the real review. But for $450, you’re getting a real instrument that will last long enough to know if your kid is serious.
If they are, you’ll be ready to upgrade to something in the $1,000 range. If not, you’re out $450, not $1,500.
This is the piano I recommend to every parent with a 10-year-old who has been asking for lessons.
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Flaws but not dealbreakers: The sustain pedal is too light and hard to control, a common complaint in owner reviews. The high-end octave sounds a bit thin, and there’s no Hammond organ sound built in. The action degradation at year four is real, but by then you’ll know if you’re still playing.
Runner-up: Casio Privia PX-S1100
The Casio Privia PX-S1100 is the closest competitor to the P-45, and it wins on paper in a few ways: it’s slimmer, it has more sounds, and it has Bluetooth built in. But in my studio, it lost on feel. The action is lighter and less connected than the Yamaha’s, and when I played the Bach prelude, the trills felt less crisp.
The Chopin nocturne sustained fine, but the dynamic range felt narrower, and the blues improvisation lacked the same rhythmic punch.
The PX-S1100 costs around $500, which is $50 more than the P-45, and it has a few extra features you might use once.
The Bluetooth is nice if you want to connect to a learning app, but the P-45 works fine as a MIDI controller anyway.
The real issue is the action: it’s good, but it’s not great, and for $50 more you’re getting less of what matters.
The PX-S1100 is a solid choice if you want the slimmer cabinet or the extra sounds, but the P-45 plays better, and that’s the whole point.
If you’re choosing between the two, play them both and pick the one that feels better. I bet you pick the Yamaha.
Flaws but not dealbreakers: The action is lighter and less connected than the P-45, which some players might prefer, but it makes the instrument feel less like a real piano. The Bluetooth is a nice addition, but it’s not a reason to choose this over the Yamaha.
Budget pick: Casio CDP-S100
The Casio CDP-S100 is the cheapest fully weighted digital piano you can buy, at around $250. That’s remarkable, and for a beginner who is serious about learning, it’s a legitimate option. But it’s a stripped-down instrument.
It has fewer sounds, a thinner sound quality, and the action, while weighted, feels less substantial than the P-45.
The keys are lighter and the dynamic range is narrower. When I played the Chopin nocturne on the CDP-S100, the sustain was decent, but the overall tone felt thin, like a good keyboard rather than a real piano.
The CDP-S100 is a better choice than a toy keyboard, and it costs half as much as the P-45. But if you can stretch the extra $200, the P-45 is a significantly better instrument.
The CDP-S100 is the right choice for a student who wants to learn proper technique without spending much, or for a family that isn’t sure the kid will stick with it.
It’s a great value, but it’s not a great piano.
Flaws but not dealbreakers: The sound is thin and the action feels lighter than the P-45. It has fewer sounds and no Bluetooth, which is fine if you just want to practice. The key degradation timeline is less documented, but the cheaper build quality suggests it won’t last as long as the Yamaha.
The other Yamaha: P-71
The Yamaha P-71 is essentially the same instrument as the P-45, sold exclusively through Amazon. The reviews confirm it: owners praise the build quality, the ease of use, and the classic Yamaha action.
One professional musician with 18 years of experience, Carrie Capell, chose it after "a significant amount of research." The complaints are the same as the P-45: the sustain pedal is too light, the high-end octave is thin, and there’s no Hammond organ sound.
The P-71 is a good option if you want the P-45 and it’s cheaper on Amazon. Buy whichever is cheaper, because they are the same piano.
Flaws but not dealbreakers: The same flaws as the P-45: light sustain pedal, thin high end, and the four-year action degradation. The Amazon-exclusive status means you’re dealing with Amazon’s return policy, which is fine, but not as personal as a local dealer.
The competition
The RockJam 61-key is a bundle, not an instrument, and it’s the one I tell parents to avoid. It costs around $100 and comes with a stand, bench, headphones, and a Simply Piano subscription. For a 6-year-old who wants to have fun, it’s fine.
But the failure rate is real: one owner reported it "worked well for six months" and then turned off permanently, and the manufacturer told them they hold no US stock and couldn’t help.
The headphones are cheap and often arrive broken. If you’re buying for a child under 8 who might not stick with it, this is fine.
If you’re buying for anyone who might actually practice for more than a year, spend the extra $200 on a P-45.
The Kawai ES110 is a step up from the P-45 at around $700, and it has a better action and a richer sound. But it costs $250 more, and for most beginners, the P-45 is good enough. The Roland FP-10 is another competitor at around $500, and it has a better action than the P-45, but the sound is less authentic. The P-45 remains the best value.
Who should buy what
If you’re a parent with a 10-year-old who has been asking for lessons, buy the P-45. It’s 25 pounds, has a real weighted action, sounds like a real piano, and will last long enough to know if your kid is serious.
If you’re on a tight budget and want a fully weighted action for under $300, the CDP-S100 is a legitimate option, but you’re getting what you pay for.
If you want the slimmer cabinet and extra sounds, the PX-S1100 is fine, but the P-45 plays better. And if you’re tempted by the RockJam bundle, remember that it might die at month six.
The P-45 costs more, but it’s a real instrument. That’s the difference.