There has been rumors flying around that the next iPhone, the iPhone 7, won't have a headphone jack. At first, I thought this wasn't likely, as lots of people (including myself) still use it. After some research, however, I realized that the chances of them removing it are more likely than I thought. I know the new iPhone isn't due to be released for another 8-9 months, and none of this could be true. I'm just wondering, why would they remove it? Thickness isn't an issue, as the iPod touch is 1mm thinner, yet still has a headphone jack. So why?
It's not necessarily just about the size of the connector opening on the side of the iPhone, at least initially. More importantly is the amount of room the 3.5mm connector takes up inside the phone. The connector is large enough that Apple already moved it from the top to the bottom in order to free up more room at the top, for cameras and sensors, etc. if Apple wants to make a device thinner, the internal components have to be spread out. At a certain point after miniaturization, there's nowhere for those components to spread out without elmininating things. And even if the device doesn't go thinner, but adds more power drawing features (like always listening Siri), they are likewise going to need additional room to increase the battery capacity, at the expense of something else inside the phone.
And none of this addresses likely the most important reason for Apple to remove it -- pushing customers to wireless audio and Lightning connected audio products, all of which benefits Apple's other products and services. While we can debate the similarities of removing the 3.5mm Jack vs. removing the floppy disk drive from the iMac, one thing remains certain -- Apple knows that unless a customer has no other convenient choice to use legacy technology, they are probably going to resist adopting the new technology. Did Apple remove the floppy disk drive because it was unnecessary, old and dying technology that nobody was using? Or did they remove it because it allowed them to design a better-looking product without accommodating a rather sizeable device that took up a fair amount of internal real-estate for what it does, which also allowed them to lower the price of the iMac? I'll wager from everything we've seen over the years from Apple, it was the latter. Apple put a substantial amount of R&D into changing the 30-pin connector to a Lightning connector, and I'll bet they would have put that off as long as possible, except they needed to free up internal space for new components, and increase the battery. It also had the benefit of allowing them to better gain control over licensing of the technology, and MiFi certification. So which was more important?
Currently Apple has Lightning audio certifications, but there aren't a lot of licensees making many products for it, despite the fact the iOS devices will support them already. Why should a manufacturer make a proprietary product for a device that can also use a legacy 3.5mm connection, which is far cheaper to manufacture? Add to that with Apple's current audio standard, there's not a lot to be gained for the average consumer by switching from the internal DAC to a higher quality external one. But if Apple plans on launching a much higher quality audio standard, there may be a compelling reason for a consumer to upgrade to a Lightning audio device -- if only via an adapter to use with existing audio products. And whether there actually is a benifit to this higher standard, it will make a great marketing spin, especially since the customer won't have a choice in the matter anymore. But that's a hard sell when there's no products for the consumer. It's a chicken and egg thing. I remember when the iMac came out, there was literally one USB compatible printer available that didn't work very well, and one USB floppy drive, which was notoriously difficult to get. This is one reason I think Apple might remove the 3.5mm Jack from the rumored early release of the new 4" iPhone -- it should kick developers into high gear to get products ready for the iPhone 7 update.
Another benifit is that Apple can then eliminate ports on their other products, like Macs, and replace them with proprietary Lightning ports which not only provide a dedicated audio port, but make that port far more useful by providing the option of alternately powering a device, providing USB 3 data speeds, and serve other functions in the same space, while also generating more license fees and profits for Apple.
In the end, Apple is pushing its proprietary tech. AirPlay for wireless audio, Bluetooth for its wireless Beats headphones, HQ audio for its Apple Music service, and software apps, Lightning for itself and its licensee's products, as well as setting up the iPhone for integration into CarPlay, and future technologies. At the same time, the move frees up space inside the iPhone which gives Apple greater design and functionality control.
So it's not just about how large the opening is on the edge of the device, but so much more with the potential to benifit both Apple and the consumer. Not everyone is going to be happy, and it's pointless for Apple to try to please everyone. I hated the change from 30-pin to Lightning -- I've had to buy a lot of new adapters and replace a lot of hardware -- but I love Lightning for its size and convenience. And I welcome any move that pushes manufacturers to innovate more products for it (subject for another post).