As compare to previous version 3
MOMENTUM 4 Wireless
Pro:
Lighter thus, provide a little more comfort
Non animals leather earcup, more sweat proof might last longer
Hard case more durable and protect the headphone better. Able to lay headphone flat in the case, thus, more portable and easier storage in bag. Case able to auto turn off headphone a useful feature.
Touch interface and only one button, provide better control as compare to MOMENTUM 3 Wireless, where the three buttons are too close together make confuse which button is for what.
Able to turn off headphone.
Very good battery life.
USB Type C with fast charging.
Improved mic.
Improved vocal clarity.
Con:
Unable to fold headphone into smaller size for better potability.
Unable to turn off ANC.
Earcup less deep thus might touch the tip of the ears, weaker passive noise cancellation.
Unable to adjust headband fitting with one hand.
Touch volume control may not be precise some time.
Unable to auto turn off headphone by turning the earcup, only can auto turn off when placed in the case provided.
Less airy and less open stage and less details sound quality compared to version 3.
Sound quality had less soul and feelings.