The catch
Yamaha P-45
The USB port talks to MIDI software. It cannot record the internal piano sound directly.
Side by side
Get the P-145BT if you want phone backing tracks, direct USB audio and a shallower body. The P-45 stays in the running when it costs meaningfully less and you mostly play alone on wired headphones.
Before you buy
Over Bluetooth, a phone can feed a backing track to the P-145BT and the piano stays ready to play. The P-45 has no Bluetooth audio receiver. When your phone is the source of your practice material, that spares you a separate speaker arrangement. If you read paper music and play without accompaniment, the difference counts for less.
Where this comes from
Included Bluetooth audio reception: P-45 No, P-145BT Yes. Headphone sockets: P-45 1, P-145BT 1. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
The catch
The USB port talks to MIDI software. It cannot record the internal piano sound directly.
The catch
It offers one headphone connection and has no onboard recorder.


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Yamaha P-45 vs Yamaha P-145BT, compared on keyboard mechanism, depth before music rest and live USB audio interface, plus the practice routines that decide the better choice.
These are simple, lightweight 88-key starting points from Yamaha. What matters when upgrading is whether phone-backed practice and recording justify moving beyond the P-45.
Which one fits
Over Bluetooth, a phone can feed a backing track to the P-145BT and the piano stays ready to play. The P-45 has no Bluetooth audio receiver. When your phone is the source of your practice material, that spares you a separate speaker arrangement. If you read paper music and play without accompaniment, the difference counts for less.
USB audio comes alongside MIDI on the P-145BT. On the P-45, USB MIDI sends note instructions, so its internal sound has to be captured through an analog audio route. If you want a quick recording of the actual piano, tally up the recording chain before you compare keyboard prices.
Width is the same on both, at 1326 mm. Depth drops from 295 to 268 mm on the P-145BT, which is 27 mm less. A shallow practice surface benefits, but a narrow wall gains nothing. Before you decide it fits, allow for the music rest, cables and a stable playing position.
Hammer action, headphones and Duo still come with the P-45. Compare the current price of the complete setup.
In practice
Over Bluetooth, a phone can feed a backing track to the P-145BT and the piano stays ready to play. The P-45 has no Bluetooth audio receiver. When your phone is the source of your practice material, that spares you a separate speaker arrangement. If you read paper music and play without accompaniment, the difference counts for less.
Included Bluetooth audio reception: P-45 No, P-145BT Yes. Headphone sockets: P-45 1, P-145BT 1. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
USB audio comes alongside MIDI on the P-145BT. On the P-45, USB MIDI sends note instructions, so its internal sound has to be captured through an analog audio route. If you want a quick recording of the actual piano, tally up the recording chain before you compare keyboard prices.
Live USB audio interface: P-45 No, P-145BT Yes. USB MIDI: P-45 Yes, P-145BT Yes. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
Width is the same on both, at 1326 mm. Depth drops from 295 to 268 mm on the P-145BT, which is 27 mm less. A shallow practice surface benefits, but a narrow wall gains nothing. Before you decide it fits, allow for the music rest, cables and a stable playing position.
Listed width: P-45 1326 mm, P-145BT 1326 mm. Depth before music rest: P-45 295 mm, P-145BT 268 mm. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.

Yamaha, P-45
With ten voices and a graded hammer action, the P-45 stays focused on playing. It works for a plain headphone routine, as long as you can do without Bluetooth backing tracks and direct USB audio.

Yamaha, P-145BT
You get an 88-key hammer action, Bluetooth backing tracks and USB audio recording in the P-145BT. Before turning it into a permanent practice station, pair it with a compatible stand and check the pedal.
Spec by spec
| Spec | Yamaha P-45 | Yamaha P-145BT | In practice |
|---|---|---|---|
| Keyboard mechanism | GHS | GHC | Try out the documented mechanism before taking its name as a guarantee about feel or mechanical noise. |
| Depth before music rest | 295 mm | 268 mm | The music rest, cable route and comfortable playing clearance are all left out of bare depth. |
| Live USB audio interface | No | Yes | Whether compatible software can take the internal piano sound directly over USB depends on this. |
| Included Bluetooth audio reception | No | Yes | What audio reception brings in is backing music from a supported device. It does not send sound to wireless headphones. |
| Optional three-pedal route | No | Yes | Whether a compatible three-pedal station can be added later is decided here. |
Trade-offs
Change of plan
Go with Yamaha P-45. Hammer action, headphones and Duo still come with the P-45. Compare the current price of the complete setup.
Go with Yamaha P-145BT. Over Bluetooth, a phone can feed a backing track to the P-145BT and the piano stays ready to play. The P-45 has no Bluetooth audio receiver. When your phone is the source of your practice material, that spares you a separate speaker arrangement. If you read paper music and play without accompaniment, the difference counts for less.
Neither model fits. Manufacturer records contain no matched test for those outcomes. Try the instruments under the conditions you intend to play in.
Decision guide
Over Bluetooth, a phone can feed a backing track to the P-145BT and the piano stays ready to play. The P-45 has no Bluetooth audio receiver. When your phone is the source of your practice material, that spares you a separate speaker arrangement. If you read paper music and play without accompaniment, the difference counts for less.
USB audio comes alongside MIDI on the P-145BT. On the P-45, USB MIDI sends note instructions, so its internal sound has to be captured through an analog audio route. If you want a quick recording of the actual piano, tally up the recording chain before you compare keyboard prices.
Width is the same on both, at 1326 mm. Depth drops from 295 to 268 mm on the P-145BT, which is 27 mm less. A shallow practice surface benefits, but a narrow wall gains nothing. Before you decide it fits, allow for the music rest, cables and a stable playing position.
By the numbers
What we found across the digital pianos we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Yamaha P-45 |
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| Yamaha P-145BT |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

A simple solo-practice setup with GHS keys is what you are after
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You play along to phone backing tracks in brief practice sessions
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