Main trade-off
Casio PX-S3100
There is no microphone input. A suitable line-level player fits Audio In, but a bare microphone needs another route.
Head-to-head
Casio PX-S3100 vs PX-S6000: 6000 adds a microphone but its drum patterns do not replace 3100 accompaniment
The short answer
Choose PX-S3100 for chord-following accompaniment, a wired music-player input and a lighter movable setup. Choose PX-S6000 for hybrid keys, a microphone input and direct sound controls. Its drum-pattern metronome does not replace PX-S3100’s accompaniment styles. Both can record WAV files to a flash drive, but the drive shares the Bluetooth-adapter port and neither provides live computer USB audio.
Before you choose
The reasoning and the trade-offs
Moving up can remove the band you wanted to keep
Someone learning alone may rely on the piano to supply chords, bass and rhythm while they play a melody. PX-S3100’s accompaniment styles support that routine. PX-S6000 changes emphasis toward hybrid keys, microphone effects and hands-on tone control. Its drum-pattern metronome and arpeggiator do not recreate the same chord-following band. If accompaniment keeps practice enjoyable, choose around that activity first. A higher model number is not a complete replacement for a lower model’s way of making music.
What this is based on
PX-S3100 complete accompaniment specification versus PX-S6000 function list. The latter’s drum patterns and arpeggiator are distinct functions. No comparative motivation or learning outcome is promised.
Main trade-off
Casio PX-S6000
It is 3.4 kg heavier and does not supply the PX-S3100 accompaniment-style workflow. A drum metronome is not a backing band.
Casio PX-S3100
- Choose it for
- You want the piano to supply accompaniment around your chords, or need its stereo Audio In for an existing wired music source.
- You clear the room after practice and prefer an 11.4 kg body before batteries and accessories.
- Main trade-off
- There is no microphone input. A suitable line-level player fits Audio In, but a bare microphone needs another route.
Casio PX-S6000
- Choose it for
- You want to sing into a dynamic microphone and prefer the documented hybrid wood-and-resin key design after trying it.
- You use assignable controls and mic effects more than a chord-following backing band.
- Main trade-off
- It is 3.4 kg heavier and does not supply the PX-S3100 accompaniment-style workflow. A drum metronome is not a backing band.
About this comparison
The higher model does not replace every PX-S3100 feature. Compare accompaniment, microphone and line inputs, carrying weight and shared-room practice.
Both are slim, battery-capable 88-key Casio pianos with two headphone sockets. Moving up the range changes the creative emphasis as well as the action design.
Winner by situation
Start with what you need it to do
You want changing chords and bass behind your melody
PX-S3100 has accompaniment styles. PX-S6000’s drum patterns do not establish the same band function.
- Casio PX-S3100
- Better fit
- Casio PX-S6000
- Caution
You want to sing into a dynamic microphone
PX-S6000 has the mic input and effects. PX-S3100 Audio In accepts an appropriate line-level source instead.
- Casio PX-S3100
- Caution
- Casio PX-S6000
- Better fit
An existing wired player must remain connected during flash recording
PX-S3100 has separate stereo Audio In. Do not assume the PX-S6000 mic input accepts the same stereo source.
- Casio PX-S3100
- Better fit
- Casio PX-S6000
- Caution
Someone must carry the piano away after every lesson
PX-S6000 adds 3.4 kg before accessories despite the similar slim outline.
- Casio PX-S3100
- Better fit
- Casio PX-S6000
- Caution
What matters in practice
The differences that matter
Moving up can remove the band you wanted to keep
Someone learning alone may rely on the piano to supply chords, bass and rhythm while they play a melody. PX-S3100’s accompaniment styles support that routine. PX-S6000 changes emphasis toward hybrid keys, microphone effects and hands-on tone control. Its drum-pattern metronome and arpeggiator do not recreate the same chord-following band. If accompaniment keeps practice enjoyable, choose around that activity first. A higher model number is not a complete replacement for a lower model’s way of making music.
How we reached this conclusion
PX-S3100 complete accompaniment specification versus PX-S6000 function list. The latter’s drum patterns and arpeggiator are distinct functions. No comparative motivation or learning outcome is promised.
The input you lose can matter more than the one you gain
A family may use an older player or a phone adapter to feed wired backing music into PX-S3100. Its separate Audio In also avoids the Bluetooth-adapter conflict when the USB-A port holds a recording drive. PX-S6000 gains a mic input, but its full connector list has no separate stereo line input. Do not treat that mic socket as an interchangeable stereo-player connection. If the routine is singing into a dynamic mic, PX-S6000 is the direct fit. If it is playing along with an existing wired source, verify an alternative route before upgrading.
How we reached this conclusion
Exact connector lists distinguish stereo Audio In from dynamic mic input. Both models share USB-A between adapter and flash drive. No undocumented adapter or input-level compatibility is assumed.
A ten-millimeter size change can still alter who can put it away
PX-S6000 is only 10 mm deeper, but its bare body is 3.4 kg heavier, about 7.5 lb. If a child practices in a room an adult must clear afterward, that load falls on the person setting up and packing away, not necessarily the player. PX-S3100 keeps accompaniment and batteries in the lighter body. Choose PX-S6000 when its mic and key design are worth the extra handling, and assess the complete lift with a suitable case. Neither body depth includes the stand or seated playing space.
How we reached this conclusion
242 minus 232 = 10 mm depth. 14.8 minus 11.4 = 3.4 kg, approximately 7.5 lb. Both weights exclude accessories and batteries.
Choice A
Casio, PX-S3100
PX-S3100
You want the piano to supply accompaniment around your chords, or need its stereo Audio In for an existing wired music source.
- Best matched use
- You want the piano to supply accompaniment around your chords, or need its stereo Audio In for an existing wired music source.
Checked facts
- Play with a backing band: 200 accompaniment rhythms with chord-following parts
- Bring in another sound source: Stereo line-level Audio In, no microphone input
- Keyboard action: Smart Scaled Hammer
- Carry between sessions: 11.4 kg without batteries or accessories
Choice B
Casio, PX-S6000BKC3
PX-S6000
You want to sing into a dynamic microphone and prefer the documented hybrid wood-and-resin key design after trying it.
- Best matched use
- You want to sing into a dynamic microphone and prefer the documented hybrid wood-and-resin key design after trying it.
Checked facts
- Play with a backing band: Drum-pattern metronome and arpeggiator, no matching accompaniment-style engine
- Bring in another sound source: Dynamic mic input with effects, no separate stereo line input in the connector list
- Keyboard action: Smart Hybrid Hammer
- Carry between sessions: 14.8 kg without batteries or accessories
Meaningful differences
What changes the fit
| What changes | Casio PX-S3100 | Casio PX-S6000 | Why it matters |
|---|---|---|---|
| Play with a backing band | 200 accompaniment rhythms with chord-following parts | Drum-pattern metronome and arpeggiator, no matching accompaniment-style engine | A metronome pattern does not supply the same changing chords and bass around a performance. |
| Bring in another sound source | Stereo line-level Audio In, no microphone input | Dynamic mic input with effects, no separate stereo line input in the connector list | Choose according to the source you actually want to connect. |
| Keyboard action | Smart Scaled Hammer | Smart Hybrid Hammer | The designs differ, but personal touch preference requires trying them. |
| Carry between sessions | 11.4 kg without batteries or accessories | 14.8 kg without batteries or accessories | PX-S6000 adds 3.4 kg to the repeated lift. |
| Body depth | 232 mm | 242 mm | Only 10 mm of extra depth does not reveal the full handling difference. |
| Bluetooth and audio recording | WU-BT10 and flash drive share USB-A | WU-BT10 and flash drive share USB-A | The higher model does not remove this port conflict. |
| Computer sound capture | USB-MIDI with analog line outputs | USB-MIDI with analog line outputs | Both need a separate audio path for live capture of the internal sound. |
What you give up
Every choice has a cost
If you choose Casio PX-S3100
- Its battery runtime estimate is conditional. SP-34 and a suitable stand are separate from the base box.
If you choose Casio PX-S6000
- The included SP-3 is still an on-off switch. USB computer MIDI is not live capture of the piano sound.
Recommendation switch
The decision flips if...
Chord-following accompaniment is essential
Choose Casio PX-S3100. PX-S3100 directly supports that activity.
Direct microphone use matters more than the backing band
Choose Casio PX-S6000. PX-S6000 adds the input and controls for that singing setup.
You expect the upgrade to remove Bluetooth-versus-flash port sharing
Choose neither. Both use the same USB-A socket for their Bluetooth adapter and recording drive.
What matters in practice
Before you choose
You want a more capable piano for making music at home, but the feature you use most may be the one the higher model changes. A backing band and a microphone input solve different jobs.
What this comparison cannot tell you
- No matched speaker, touch or battery-duration comparison is claimed.
- An absent feature claim is based on complete exact-model function and connector lists, not a missing marketing mention.
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 |
|---|---|---|---|
| Casio PX-S3100 |
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| Casio PX-S6000 |
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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.
Casio PX-S3100
You want the piano to supply accompaniment around your chords, or need its stereo Audio In for an existing wired music source.
You clear the room after practice and prefer an 11.4 kg body before batteries and accessories.
See price & reviews on AmazonCasio PX-S6000
You want to sing into a dynamic microphone and prefer the documented hybrid wood-and-resin key design after trying it.
You use assignable controls and mic effects more than a chord-following backing band.
See price & reviews on AmazonLinks open in a new tab.