The headphone jack met its end for many reasons, but Bluetooth getting good enough was the final nail.
By Andrew Martonik
A smartphone not having a headphone jack isn't a noteworthy thing anymore. Even Samsung, the bastion of features and expandability, has given it up on its most power-user Galaxy Note line. While there are many reasons for the death of the headphone jack in phones - not the least of which being simplifying hardware design and internal complexity - perhaps the biggest driving factor is that Bluetooth is now good enough for a vast majority of people.
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