Main trade-off
Audio-Technica ATH-M50x
There is no Bluetooth or active noise cancellation.
Head-to-head
Choose ATH-M40x for a lighter wired recording pair if the included long cables suit your desk. Choose ATH-M50x when you also use a laptop or portable player and want the short 1.2 m lead in the box. Neither adds Bluetooth, a microphone or ANC.
Before you choose
M40x is about 16% lighter than M50x before adding the cable.
What this is based on
(285 - 240) / 285 × 100 = 15.8%, using manufacturer weights without cable.
Main trade-off
There is no Bluetooth or active noise cancellation.
Main trade-off
The box does not include the M50x short straight cable.


Compare the ATH-M50x and ATH-M40x by supplied cables, weight and recording setup. Find out whether the short lead is worth paying extra for.
Choose ATH-M40x for a lighter wired recording pair if the included long cables suit your desk. Choose ATH-M50x when you also use a laptop or portable player and want the short 1.2 m lead in the box. Neither adds Bluetooth, a microphone or ANC.
Winner by situation
The M50x 1.2 m cable creates less loose lead than a 3 m cable.
M40x is 45 g lighter, though clamp and pad fit still need a trial.
Both include a straight 3 m lead.
Neither supplied cable contains a microphone.
What matters in practice
M40x is about 16% lighter than M50x before adding the cable.
(285 - 240) / 285 × 100 = 15.8%, using manufacturer weights without cable.
At a laptop, the M50x short straight cable is 60% shorter than the M40x supplied straight lead.
3 - 1.2 = 1.8 m. 1.8 / 3 × 100 = 60%.
Both already provide the same 3 m straight reach and a replaceable cable.
Manufacturer package lists include a detachable 3 m straight cable for both models.
Check your own setup
Start with the way you listen. USB charging is not the same as USB audio, and some headphones need power even with a cable. These choices are examples until you apply yours.
This model does not play over Bluetooth.
This model does not play over Bluetooth.
Battery figures are manufacturer claims for the stated mode, not measured travel time. Volume, codec, calls and battery age change runtime. Closed earcups can still leak sound. Weight alone does not predict comfort. USB audio needs a compatible source and cable. This check does not assess sound quality, microphone quality or amplifier power.

Audio-Technica, ATH-M50x
A foldable wired pair that comes with short, long and coiled cables. Move between a laptop and audio interface without buying a second lead.

Audio-Technica, ATH-M40x
A 240 g wired studio model that folds into a bag and keeps the cable replaceable. The supplied leads favor an interface or desktop setup.
Meaningful differences
| What changes | Audio-Technica ATH-M50x | Audio-Technica ATH-M40x | Why it matters |
|---|---|---|---|
| Weight without cable | 285 g | 240 g | M40x removes 45 g before any cable weight is counted. |
| Shortest supplied straight lead | 1.2 m | 3 m | M50x leaves less spare cable on a small desk. |
| Longest supplied straight lead | 3 m | 3 m | Both reach the same interface position using their long lead. |
| Supplied audio cables | Three | Two | The extra M50x lead is a short straight cable, not an additional connection type. |
| Cable replacement | Detachable | Detachable | Both avoid a fixed-cable repair if the lead fails. |
| Storage | Folds inward | Folds inward | Portability is not exclusive to M50x. |
| Impedance | 38 ohms | 35 ohms | This small difference does not rank loudness or sound quality. |
What you give up
Recommendation switch
Choose Audio-Technica ATH-M50x. At a laptop on the same desk, the M50x short cable can save more inconvenience than the larger model number suggests. It does not improve the source or add a microphone.
Choose Audio-Technica ATH-M40x. For a fixed interface or keyboard, M40x already has a 3 m straight cable. If weight matters more than a short lead, its 45 g reduction is a tangible reason to choose it.
What matters in practice
At a laptop on the same desk, the M50x short cable can save more inconvenience than the larger model number suggests. It does not improve the source or add a microphone.
For a fixed interface or keyboard, M40x already has a 3 m straight cable. If weight matters more than a short lead, its 45 g reduction is a tangible reason to choose it.
Driver diameter and response endpoints cannot establish which tuning you will prefer. These are connection and handling recommendations, not a listening-test winner.
What the facts say
Useful conclusions from the current headphones comparison, followed by the checked facts used to reach them.
Only 17 of 60 models checked match every need here: “I want music when the battery is empty”, “My bag is already full”, and “I plug into a headphone jack”.
17 matching models from 60 checkedMatch countThe count uses the current product-to-need assignments for “I want music when the battery is empty”, “My bag is already full”, and “I plug into a headphone jack”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Audio-Technica ATH-M50x |
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| Audio-Technica ATH-M40x |
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Ready to choose?
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