The catch
Korg B2+
A USB-C port does not make the piano battery powered, and not every cable can carry data.
Side by side
Korg B2+ vs Yamaha P-145BT: Korg centers on a wired USB-C setup, while Yamaha plays phone music wirelessly
Quick verdict
For wireless phone music and a shallower practice spot, go with the P-145BT. The B2+ is the better fit when its USB-C connection and NH keyboard suit your wired setup.
Before you buy
Why, and what it costs you
A shallow body frees up space for whatever sits behind it
At 268 mm deep, the P-145BT saves 68 mm against the B2+'s 336 mm. When the piano shares a desk with a monitor or papers, that is useful room before the rest and cables go on. Keyboard width stays roughly similar, so check the whole support surface.
Where this comes from
Depth before music rest: B2+ 336 mm, P-145BT 268 mm. Listed width: B2+ 1312 mm, P-145BT 1326 mm. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
The catch
Yamaha P-145BT
It offers one headphone connection and has no onboard recorder.
Korg B2+
- Why pick it
- Your computer or phone setup is compatible and centered on USB-C
- The catch
- A USB-C port does not make the piano battery powered, and not every cable can carry data.
Yamaha P-145BT
- Why pick it
- Desk depth is the measurement that limits placement
- You want music from your phone with no audio cable
- The catch
- It offers one headphone connection and has no onboard recorder.
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What this page compares
Korg B2+ vs Yamaha P-145BT, compared on keyboard mechanism, depth before music rest and computer USB connector, plus the practice routines that decide the better choice.
Direct USB audio and an optional three-pedal setup are supported by both of these simple weighted 88-key pianos. The buying boundary lies between a USB-C-led routine and Bluetooth backing tracks with a shallower body.
Which one fits
Pick the situations that sound like you
Desk depth is the measurement that limits placement
At 268 mm deep, the P-145BT saves 68 mm against the B2+'s 336 mm. When the piano shares a desk with a monitor or papers, that is useful room before the rest and cables go on. Keyboard width stays roughly similar, so check the whole support surface.
- Korg B2+
- Good
- Yamaha P-145BT
- Better fit
You want music from your phone with no audio cable
The P-145BT receives Bluetooth audio and provides USB audio. For the B2+, the documentation lists USB-C audio and MIDI plus an analog audio input, and no Bluetooth reception. Planning a phone music routine is easier with Yamaha, whereas a deliberately wired setup can work well with Korg.
- Korg B2+
- Caution
- Yamaha P-145BT
- Better fit
Your computer or phone setup is compatible and centered on USB-C
A Type-C port handles MIDI and audio on the B2+. You still need to check the data cable, device compatibility and any phone adapter, and the piano still needs its power adapter. It matters when a beginner sees USB-C and expects a battery-powered instrument that works with any charging cable.
- Korg B2+
- Better fit
- Yamaha P-145BT
- Good
A particular key action feel is a must for you
Try out Korg NH and Yamaha GHC for yourself. What has been published about the mechanisms does not establish which feels better under your hands.
- Korg B2+
- Caution
- Yamaha P-145BT
- Caution
In practice
Differences you will notice
A shallow body frees up space for whatever sits behind it
At 268 mm deep, the P-145BT saves 68 mm against the B2+'s 336 mm. When the piano shares a desk with a monitor or papers, that is useful room before the rest and cables go on. Keyboard width stays roughly similar, so check the whole support surface.
How we worked this out
Depth before music rest: B2+ 336 mm, P-145BT 268 mm. Listed width: B2+ 1312 mm, P-145BT 1326 mm. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
Yamaha lets wireless backing tracks and wired recording live together
The P-145BT receives Bluetooth audio and provides USB audio. For the B2+, the documentation lists USB-C audio and MIDI plus an analog audio input, and no Bluetooth reception. Planning a phone music routine is easier with Yamaha, whereas a deliberately wired setup can work well with Korg.
How we worked this out
Included Bluetooth audio reception: B2+ Not established in the checked record, P-145BT Yes. Live USB audio interface: B2+ Yes, P-145BT Yes. Computer USB connector: B2+ Type C, P-145BT Not established in the checked record. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
USB-C cuts down on connector mismatch but not on what you have to check
A Type-C port handles MIDI and audio on the B2+. You still need to check the data cable, device compatibility and any phone adapter, and the piano still needs its power adapter. It matters when a beginner sees USB-C and expects a battery-powered instrument that works with any charging cable.
How we worked this out
Computer USB connector: B2+ Type C, P-145BT Not established in the checked record. Live USB audio interface: B2+ Yes, P-145BT Yes. USB MIDI: B2+ Yes, P-145BT Yes. This is a conditional workflow inference drawn from these documented inputs. There is no matched performance measurement.
Option A
Korg, B2+
B2+
Korg's simple weighted-piano layout gets USB-C audio and MIDI in the B2+. It works with a compatible phone or computer, as long as you pick a data cable that suits that device.
- Best for
- Your computer or phone setup is compatible and centered on USB-C
Facts we checked
- Keyboard action: NH
- Depth ahead of the music rest: 336 mm
- Connector for computer USB: Type C
- Bluetooth audio reception included: The checked record does not establish it
Option B
Yamaha, P-145BT
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.
- Best for
- Desk depth is the measurement that limits placement
Facts we checked
- Keyboard action: GHC
- Depth ahead of the music rest: 268 mm
- Connector for computer USB: The checked record does not establish it
- Bluetooth audio reception included: Yes
Spec by spec
Where they really differ
| Spec | Korg B2+ | Yamaha P-145BT | In practice |
|---|---|---|---|
| Keyboard mechanism | NH | GHC | Try out the documented mechanism before taking its name as a guarantee about feel or mechanical noise. |
| Depth before music rest | 336 mm | 268 mm | The music rest, cable route and comfortable playing clearance are all left out of bare depth. |
| Computer USB connector | Type C | Not established in the checked record | Pair a data-capable cable with the host device. The shape of the connector does not by itself establish compatibility. |
| Included Bluetooth audio reception | Not established in the checked record | Yes | What audio reception brings in is backing music from a supported device. It does not send sound to wireless headphones. |
| Live USB audio interface | Yes | Yes | Whether compatible software can take the internal piano sound directly over USB depends on this. |
Trade-offs
What each pick costs you
With Korg B2+
- You buy the matching stand and half-pedal unit separately.
With Yamaha P-145BT
- The Bluetooth audio feature is for receiving music. It does not give you wireless headphones or Bluetooth MIDI.
Change of plan
When the answer changes
Your computer or phone setup is compatible and centered on USB-C
Go with Korg B2+. A Type-C port handles MIDI and audio on the B2+. You still need to check the data cable, device compatibility and any phone adapter, and the piano still needs its power adapter. It matters when a beginner sees USB-C and expects a battery-powered instrument that works with any charging cable.
Desk depth is the measurement that limits placement
Go with Yamaha P-145BT. At 268 mm deep, the P-145BT saves 68 mm against the B2+'s 336 mm. When the piano shares a desk with a monitor or papers, that is useful room before the rest and cables go on. Keyboard width stays roughly similar, so check the whole support surface.
You need a verified winner on mechanical key noise or on personal playing comfort
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
How to decide
A shallow body frees up space for whatever sits behind it
At 268 mm deep, the P-145BT saves 68 mm against the B2+'s 336 mm. When the piano shares a desk with a monitor or papers, that is useful room before the rest and cables go on. Keyboard width stays roughly similar, so check the whole support surface.
Yamaha lets wireless backing tracks and wired recording live together
The P-145BT receives Bluetooth audio and provides USB audio. For the B2+, the documentation lists USB-C audio and MIDI plus an analog audio input, and no Bluetooth reception. Planning a phone music routine is easier with Yamaha, whereas a deliberately wired setup can work well with Korg.
USB-C cuts down on connector mismatch but not on what you have to check
A Type-C port handles MIDI and audio on the B2+. You still need to check the data cable, device compatibility and any phone adapter, and the piano still needs its power adapter. It matters when a beginner sees USB-C and expects a battery-powered instrument that works with any charging cable.
What this page can’t tell you
- This comparison rests on documented specifications and conditional reasoning about your setup. We have not put key feel, mechanical noise or speaker performance side by side and measured them.
- The dimensions given are for the specified body or cabinet. Allow space as well for the rest, cables, bench and player.
- Before you order, verify the exact Amazon model, color, supplied accessories, condition and delivery date.
By the numbers
What the data shows
What we found across the digital pianos we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Korg B2+ |
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| Yamaha P-145BT |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Korg B2+
Your computer or phone setup is compatible and centered on USB-C
See price & reviews on AmazonYamaha P-145BT
Desk depth is the measurement that limits placement
See price & reviews on AmazonEach link opens in a new tab.
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