There are many reasons why smartphones have removed the 3.5mm headphone jack, such as making the design lighter and thinner, improving water and dust resistance, and enhancing sound quality. Of course, the main reason might be to promote the sale of Bluetooth headphones. For example, Sony’s entire lineup is waterproof, yet they still include the headphone jack, maintaining an IP68 level of waterproofing. Let’s take a closer look.
First, in terms of design, everyone wants to make smartphones lighter and thinner. Removing the 3.5mm headphone jack frees up valuable internal space, allowing the phone to be more slim while providing room for other important components, such as a larger battery or integration of other functional modules.
Secondly, the 3.5mm headphone jack is undoubtedly an opening in the phone’s casing, which can be vulnerable to water, dust, and mechanical wear. Removing this port improves the phone’s overall sealing, making it more resistant to harsh external environments and enhancing its overall lifespan. There have been rumors that Apple, in pursuit of “maximum protection,” plans to remove wired charging and only keep wireless charging. Therefore, eliminating wired ports is indeed a trend in the right direction.
Finally, with the advancement of Bluetooth technology, the sound quality and stability of wireless headphones have improved significantly. Removing the 3.5mm headphone jack encourages users to adopt wireless headphones, offering a more convenient audio experience.
On the other hand, it also encourages users to use Type-C headphones. The Type-C port has digital audio transmission capabilities, allowing audio to be transmitted directly via digital signals, providing better sound quality and compatibility, thus improving audio performance. Of course, from the perspective of phone manufacturers, after removing the 3.5mm headphone jack, consumers have no choice but to buy Type-C wired headphones or Bluetooth headphones, which can increase the manufacturers’ profits.
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