Main trade-off
Yamaha P-145BT
There is one headphone connection and no onboard recorder.
Head-to-head
Yamaha P-145BT vs Casio PX-S1100: Casio supports two listeners and battery practice, Yamaha sends USB audio
The short answer
Choose the PX-S1100 for two listeners, battery operation and onboard recording. Choose the P-145BT when direct USB audio to a computer is the priority.
Before you choose
The reasoning and the trade-offs
Two listeners change a solo-looking purchase
The Casio has two headphone sockets and the Yamaha has one. If another person listens to your practice in the same room, the Casio supplies the second physical connection. Check the headphones and practice-mode routing rather than assuming a duet setting gives each player isolated sound.
What this is based on
P-145BT: Headphone sockets 1. PX-S1100: Headphone sockets 2. P-145BT: Two-player mode Yes. PX-S1100: Two-player mode Yes. Conditional workflow inference from these documented inputs. No matched performance measurement.
Main trade-off
Casio PX-S1100
The music rest and cables need space beyond the bare body.
Yamaha P-145BT
- Choose it for
- Your recording software needs the internal sound over USB
- Main trade-off
- There is one headphone connection and no onboard recorder.
Casio PX-S1100
- Choose it for
- A teacher or partner listens through headphones
- You save practice takes without opening a computer
- Main trade-off
- The music rest and cables need space beyond the bare body.
About this comparison
Yamaha P-145BT vs Casio PX-S1100: compare headphone sockets, internal recorder tracks, battery operation and the practice routines that change the better choice.
These compact home pianos appeal to players who want weighted keys without a furniture cabinet. Their headphone count and recording routes matter when a small room is shared.
Winner by situation
Start with what you need it to do
A teacher or partner listens through headphones
The Casio has two headphone sockets and the Yamaha has one. If another person listens to your practice in the same room, the Casio supplies the second physical connection. Check the headphones and practice-mode routing rather than assuming a duet setting gives each player isolated sound.
- Yamaha P-145BT
- Caution
- Casio PX-S1100
- Better fit
You save practice takes without opening a computer
The PX-S1100 offers two-track MIDI recording and USB flash-drive audio recording. The P-145BT relies on a connected device to capture a performance. For someone who wants to record a short passage and immediately hear it back, that difference changes how many devices need to be ready.
- Yamaha P-145BT
- Caution
- Casio PX-S1100
- Better fit
You move between two small practice spaces
Casio's 232 mm body is 36 mm shallower than Yamaha's 268 mm body and can run on AA batteries. Those two facts help if the piano moves between a desk and another room. They do not guarantee that either will fit with its rest, stand and cables installed.
- Yamaha P-145BT
- Good
- Casio PX-S1100
- Better fit
Your recording software needs the internal sound over USB
The Yamaha provides a USB audio interface. Casio's USB MIDI connection and flash-drive recorder are different routes.
- Yamaha P-145BT
- Better fit
- Casio PX-S1100
- Caution
What matters in practice
The differences that matter
Two listeners change a solo-looking purchase
The Casio has two headphone sockets and the Yamaha has one. If another person listens to your practice in the same room, the Casio supplies the second physical connection. Check the headphones and practice-mode routing rather than assuming a duet setting gives each player isolated sound.
How we reached this conclusion
P-145BT: Headphone sockets 1. PX-S1100: Headphone sockets 2. P-145BT: Two-player mode Yes. PX-S1100: Two-player mode Yes. Conditional workflow inference from these documented inputs. No matched performance measurement.
A laptop-free recording favors Casio's built-in tools
The PX-S1100 offers two-track MIDI recording and USB flash-drive audio recording. The P-145BT relies on a connected device to capture a performance. For someone who wants to record a short passage and immediately hear it back, that difference changes how many devices need to be ready.
How we reached this conclusion
P-145BT: Internal recorder tracks No internal recorder. PX-S1100: Internal recorder tracks 2. P-145BT: Audio recording to USB memory Not established in the checked record. PX-S1100: Audio recording to USB memory Yes. P-145BT: Live USB audio interface Yes. PX-S1100: Live USB audio interface No. Conditional workflow inference from these documented inputs. No matched performance measurement.
Body depth and power work together in a temporary corner
Casio's 232 mm body is 36 mm shallower than Yamaha's 268 mm body and can run on AA batteries. Those two facts help if the piano moves between a desk and another room. They do not guarantee that either will fit with its rest, stand and cables installed.
How we reached this conclusion
P-145BT: Depth before music rest 268 mm. PX-S1100: Depth before music rest 232 mm. P-145BT: Battery operation Not established in the checked record. PX-S1100: Battery operation Yes. Conditional workflow inference from these documented inputs. No matched performance measurement.
Choice A
Yamaha, P-145BT
P-145BT
The P-145BT combines an 88-key hammer action with Bluetooth backing tracks and USB audio recording. Add a compatible stand and check the pedal before making it a permanent practice station.
- Best matched use
- Your recording software needs the internal sound over USB
Checked facts
- Headphone sockets: 1
- Internal recorder tracks: No internal recorder
- Battery operation: Not established in the checked record
- Live USB audio interface: Yes
Choice B
Casio, PX-S1100
PX-S1100
A 232 mm body depth, battery operation and two headphone sockets fit a flexible practice corner. The selected Amazon offer is white and includes the wireless adapter.
- Best matched use
- A teacher or partner listens through headphones
Checked facts
- Headphone sockets: 2
- Internal recorder tracks: 2
- Battery operation: Yes
- Live USB audio interface: No
Meaningful differences
What changes the fit
| What changes | Yamaha P-145BT | Casio PX-S1100 | Why it matters |
|---|---|---|---|
| Headphone sockets | 1 | 2 | Count physical listeners and check plug sizes and mode routing before planning a shared session. |
| Internal recorder tracks | No internal recorder | 2 | Track allocation and independent overdubbing matter more than a large number alone. |
| Battery operation | Not established in the checked record | Yes | Check this documented difference against the way you plan to practice. |
| Live USB audio interface | Yes | No | This determines whether compatible software can receive the internal piano sound directly over USB. |
| Depth before music rest | 268 mm | 232 mm | Bare depth excludes the music rest, cable route and comfortable playing clearance. |
What you give up
Every choice has a cost
If you choose Yamaha P-145BT
- Bluetooth audio receives music. It does not establish wireless headphones or Bluetooth MIDI.
If you choose Casio PX-S1100
- USB audio-file recording and Bluetooth share the USB-A socket, so check the connection plan.
Recommendation switch
The decision flips if...
Your recording software needs the internal sound over USB
Choose Yamaha P-145BT. The Yamaha provides a USB audio interface. Casio's USB MIDI connection and flash-drive recorder are different routes.
A teacher or partner listens through headphones
Choose Casio PX-S1100. The Casio has two headphone sockets and the Yamaha has one. If another person listens to your practice in the same room, the Casio supplies the second physical connection. Check the headphones and practice-mode routing rather than assuming a duet setting gives each player isolated sound.
You require a verified winner for mechanical key noise or personal playing comfort
Choose neither. The manufacturer records do not provide a matched test for those outcomes. Try the instruments in your intended conditions.
What matters in practice
Before you choose
What this comparison cannot tell you
- The comparison uses documented specifications and conditional setup reasoning. We have not measured key feel, mechanical noise or speaker performance side by side.
- Dimensions describe the specified body or cabinet. Leave room for the rest, cables, bench and player.
- Check the exact Amazon model, color, supplied accessories, condition and delivery date before ordering.
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 |
|---|---|---|---|
| Yamaha P-145BT |
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| Casio PX-S1100 |
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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.
Yamaha P-145BT
Your recording software needs the internal sound over USB
See price & reviews on AmazonCasio PX-S1100
A teacher or partner listens through headphones
See price & reviews on AmazonLinks open in a new tab.