Main trade-off
Roland FP-E50
It needs AC power and has a 322 mm body depth. Audio overdubs must start from the beginning, with no punch-in/out.
Head-to-head
Roland FP-E50 vs Casio PX-S3100: Roland records vocals, Casio saves depth but its drive competes with Bluetooth
The short answer
Choose FP-E50 for singing, staged WAV recording and a direct USB-audio route to a computer. Choose PX-S3100 for accompaniment in a much shallower body or practice away from an outlet. Casio lacks a microphone input and its Bluetooth adapter shares the recording-drive port, though its separate analog input can accept a suitable wired backing source. Both base packages include a switch pedal rather than a half-pedal.
Before you choose
The reasoning and the trade-offs
A family sing-along adds an input problem before a sound problem
A household may picture one person playing and another singing, then sharing the result with relatives. FP-E50 supplies the dynamic mic input and layered WAV recording for that sequence. PX-S3100 has an analog Audio In, but it is a line-level connection for a suitable player, not a substitute for a microphone input. It also sends MIDI rather than the piano’s sound through computer USB. Casio can still form part of that setup with separately suitable equipment. Its larger tone library does not remove those connection jobs.
What this is based on
Exact connector lists and recorder paths. The consequence concerns additional equipment and operations, not vocal quality or automatic recording of every connected source.
Main trade-off
Casio PX-S3100
No microphone input or live USB-audio interface. Its single USB-A port cannot simultaneously hold the supplied Bluetooth adapter and a flash drive.
Roland FP-E50
- Choose it for
- You want a dynamic microphone, onboard audio overdubbing and live USB audio without building a separate recording setup.
- You want built-in Bluetooth available while a USB flash drive is connected, with the intended recording route checked.
- Main trade-off
- It needs AC power and has a 322 mm body depth. Audio overdubs must start from the beginning, with no punch-in/out.
Casio PX-S3100
- Choose it for
- The piano moves out of a shared room, and its 232 mm body depth or six-AA battery option solves a real placement problem.
- You need accompaniment and can record to a flash drive while using a separately suitable wired backing source.
- Main trade-off
- No microphone input or live USB-audio interface. Its single USB-A port cannot simultaneously hold the supplied Bluetooth adapter and a flash drive.
About this comparison
Two weighted arranger pianos for making music at home. Compare singing, Bluetooth during recording, battery practice and space in a shared room.
Both combine weighted keys with accompaniment rather than restricting the buyer to solo piano. The real choice is a more complete singing and recording setup versus a smaller battery-capable instrument.
Winner by situation
Start with what you need it to do
Piano and singing should become one recording without extra input equipment
FP-E50 supplies the mic connection and overdubbing. Casio Audio In is not a mic preamp.
- Roland FP-E50
- Better fit
- Casio PX-S3100
- Caution
Practice moves to a suitable corner without an outlet
PX-S3100 supports batteries. Its runtime is conditional and batteries add weight.
- Roland FP-E50
- Caution
- Casio PX-S3100
- Better fit
A Bluetooth backing track and USB-drive recording are both wanted
Casio uses one port for its Bluetooth adapter or recording drive. Its wired Audio In can be an alternative with suitable equipment.
- Roland FP-E50
- Better fit
- Casio PX-S3100
- Caution
A compatible computer already handles arranging and recording
Roland transfers the piano sound directly. Casio requires an audio-input path or a transferred WAV to use its own sound, rather than a software instrument.
- Roland FP-E50
- Better fit
- Casio PX-S3100
- Caution
What matters in practice
The differences that matter
A family sing-along adds an input problem before a sound problem
A household may picture one person playing and another singing, then sharing the result with relatives. FP-E50 supplies the dynamic mic input and layered WAV recording for that sequence. PX-S3100 has an analog Audio In, but it is a line-level connection for a suitable player, not a substitute for a microphone input. It also sends MIDI rather than the piano’s sound through computer USB. Casio can still form part of that setup with separately suitable equipment. Its larger tone library does not remove those connection jobs.
How we reached this conclusion
Exact connector lists and recorder paths. The consequence concerns additional equipment and operations, not vocal quality or automatic recording of every connected source.
The backing track can change the recording setup
PX-S3100 can play Bluetooth music and record to a flash drive, but the two accessories occupy the same socket. If you want both jobs together, a suitable wired source through Audio In avoids that physical conflict. Do not assume the headphone mix will all be captured without checking the recording route. FP-E50 keeps Bluetooth built in and the USB memory port free. That is useful when a child’s practice track is on a phone and the adult wants fewer adapters to connect before recording.
How we reached this conclusion
WU-BT10 and flash drive share Casio USB-A, with a separate analog input. FP-E50 has built-in Bluetooth and a distinct USB memory socket. No Bluetooth-latency guarantee is made.
A shallow body helps only if the rest of the setup can move too
Casio saves 90 mm of body depth, about 3.5 inches, while adding 22 mm of width. In a shared living room that can be enough to clear a narrow storage space, and batteries let practice move away from the nearest socket. FP-E50 favors leaving a more complete singing station assembled. Before choosing Casio for flexibility, include a stable stand, pedal cable, music rest and any wired backing source. The published battery estimate is about two hours under its test conditions, so plan AC for a longer session.
How we reached this conclusion
322 minus 232 equals 90 mm depth, 1322 minus 1300 equals 22 mm width. Casio six-AA operation and test-qualified runtime are documented. No stand footprint or fatigue calculation is invented.
Choice A
Roland, FP-E50
FP-E50
You want a dynamic microphone, onboard audio overdubbing and live USB audio without building a separate recording setup.
- Best matched use
- You want a dynamic microphone, onboard audio overdubbing and live USB audio without building a separate recording setup.
Checked facts
- Room footprint before accessories: 1300 mm wide and 322 mm deep
- Power away from the wall: AC supply
- Singing into the piano: Dynamic microphone input
- Record a song: WAV overdubs and USB audio/MIDI
Choice B
Casio, PX-S3100
PX-S3100
The piano moves out of a shared room, and its 232 mm body depth or six-AA battery option solves a real placement problem.
- Best matched use
- The piano moves out of a shared room, and its 232 mm body depth or six-AA battery option solves a real placement problem.
Checked facts
- Room footprint before accessories: 1322 mm wide and 232 mm deep
- Power away from the wall: AC or six AA batteries
- Singing into the piano: Stereo Audio In, no microphone input
- Record a song: Three-track MIDI and WAV to USB flash, computer USB-MIDI
Meaningful differences
What changes the fit
| What changes | Roland FP-E50 | Casio PX-S3100 | Why it matters |
|---|---|---|---|
| Room footprint before accessories | 1300 mm wide and 322 mm deep | 1322 mm wide and 232 mm deep | Casio is 90 mm shallower but 22 mm wider. Confirm the support and ready-to-play space. |
| Power away from the wall | AC supply | AC or six AA batteries | Casio can move to a suitable spot without a nearby outlet. Neither is weatherproof. |
| Singing into the piano | Dynamic microphone input | Stereo Audio In, no microphone input | A line-level audio input does not replace the required microphone input and amplification. |
| Record a song | WAV overdubs and USB audio/MIDI | Three-track MIDI and WAV to USB flash, computer USB-MIDI | Decide whether you want editable notes, a finished WAV or live audio in software. |
| Bluetooth with a recording drive | Built-in Bluetooth leaves USB memory port free | WU-BT10 adapter and recording drive share USB-A | Casio has a wired input alternative, but needs the correct source-level cable or adapter. |
| Pedal in base box | DP-2 on-off switch | SP-3 on-off switch | Budget a compatible continuous pedal if lessons require one. |
What you give up
Every choice has a cost
If you choose Roland FP-E50
- The base box does not include a furniture stand or continuous damper pedal.
If you choose Casio PX-S3100
- The roughly two-hour battery figure is conditional. Include the stand, pedal, batteries and any phone audio adapter in the setup.
Recommendation switch
The decision flips if...
Singing and recording become weekly activities
Choose Roland FP-E50. The microphone and recording paths remove repeated setup tasks.
The piano must fit shallow storage and work away from AC
Choose Casio PX-S3100. Casio’s body shape and battery option solve those placement constraints.
A tiny recorder correction must be made onboard by punching in
Choose neither. Do not buy either for an unverified punch-in workflow. FP-E50 explicitly lacks it. Choose suitable editing software if that is essential.
What matters in practice
Before you choose
You want a piano that can make a complete song, but the family room cannot become a permanent studio. Recording convenience and the work of packing it away pull in different directions.
What this comparison cannot tell you
- No measured action, sound or speaker-volume superiority is claimed.
- Piano body dimensions exclude the ready-to-play setup.
What the facts say
What the comparison shows
Useful conclusions from the current digital pianos comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Roland FP-E50 |
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| Casio PX-S3100 |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Roland FP-E50
You want a dynamic microphone, onboard audio overdubbing and live USB audio without building a separate recording setup.
You want built-in Bluetooth available while a USB flash drive is connected, with the intended recording route checked.
See price & reviews on AmazonCasio PX-S3100
The piano moves out of a shared room, and its 232 mm body depth or six-AA battery option solves a real placement problem.
You need accompaniment and can record to a flash drive while using a separately suitable wired backing source.
See price & reviews on AmazonLinks open in a new tab.