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The Moto Z looks like an awesome phone.

The lack of a headphone jack is a complete and utter deal-breaker. I'm not carrying a dongle around so I can use my headphones. (A quality dongle will need to have some size and heft; see the Schiit Fulla. It can't even run off of Micro USB power alone as it stands, though it does work with some phones with some work.)

I think the point is that this is a step towards consumers purchasing headphones with a digital usb/lightning/whatever connector, not to carry around an adaptor.

I guess we'll see in time whether the idea takes off.

Since it doesn't actually solve any problem that any consumer actually has, I predict that it's going to go away in about 2021 and the 3.5mm jack will stick around. Personally I don't care about USB-C because it doesn't actually solve any problems for me. At least when we went to Micro-USB my device chargers became interchangeable and I didn't have to go home to charge my phone anymore.

I have USB-C on my laptop at work, and so far I'm pretty unimpressed with it. I'd much rather just have a second DisplayPort.

I understand why manufacturers are keen to get rid of the 3.5mm jack. Phones are constantly getting thinner, and the jack isn't. It's also another part on the BOM that manufacturers have to allocate PCB space for and pay money for the jack.

But here's the thing. 3.5mm jacks are analogue, and they're everywhere. They're out dated by modern standards, but overall they just work. If the industry actually cares about thickness, they'll put a 2.5mm jack on the phone, or cut the 3.5mm jack in half (this was talked about a few years ago, but I haven't seen any production phones implementing this).

As the article points out, the phone still needs a DAC and an amplifier to, you know, be a phone. Phones will typically have an earpiece speaker and a loud speaker, so you still need a DAC and amp to power those.

So, apart from reducing the port count (cheaper BOM, yay!) and making phones thinner, what is this really about?

It's about DRM.

As soon as headphones are digital, manufacturers can start locking down headphones.

Oh, you want HiFi audio? Well, the iPhone 9AB is only HiFi certified with Beatz(TM) headphones, so those fancy Bose headphones you bought for $500 last year, yeah, those are gonna give you ear-bud quality music.

Connectors are the #1 failure point in any electronics design. Substituting one connector for another isn't going to be an improvement in this respect but I can see why getting rid of a connector by itself could be a good thing (and then they'd need a wireless replacement, none of the bluetooth headsets I've used were good enough for day-to-day or prolonged use).
I've never had a 3.5mm jack fail me. The wires die, the PCB dies, but the connectors live forever.
Actually I just gave up my 8 year old iPod Classic because of that. Everything else worked fine, probably the most reliable piece of hardware I ever bought.
Anecdotal evidence. You got lucky. Due to the sheer length of a 3.5 plug, and the sturdy design of most of these plugs, a small amount of lateral force can easily wreck the socket in a split-second; and small amounts of damage over time can easily accumulate.

I don't know if the lightning connectors are any better, but just by the fact that they're shorter, i'd hope they'd get removed from the socket, or just have the plug break, instead of the socket.

Are you actually arguing that a USB-C / Lightning connector will be more reliable than a 3.5mm analog connector?

You'll have to produce data to back that up.

I was using the wrong word, s/jack/socket/, now it should make more sense.

As to your data: Basic physics. Any plug in a socket is a lever. Its length determines to how much force any force impacting the part outside the device is translated to, at the end of the lever; inside the device.

USB-C plugs are shorter than 3.5mm plugs.

Thus, they're less likely to wreck your phone, and more likely to wreck themselves.

> Its length determines to how much force any force impacting the part outside the device is translated to, at the end of the lever; inside the device.

> Thus, they're less likely to wreck your phone, and more likely to wreck themselves

It's not about the force, since that goes both ways (because Newton's third law). It's about how deep damage may happen or how sooner will a jack give in before the socket does. 3.5mm plugs usually have more strength than lightning plugs (but not more than the USB-C plugs I've seen), so it is understandable if lightning plugs destroy themselves before dealing much damage to the socket.

But a shorter lever (of considerable strength to not break first) will apply the same amount of force over a smaller area than a longer lever. Less area => more pressure => more damage to socket.

This is exactly why I can (and have done so for the last three years, same phone) pick my phone up with the earphones, but not with the end of its microUSB cable: the shorter socket cannot handle the weight of the phone.

And they are easy and inexpensive to fix and replace.
They do wear out if you're plugging and unplugging it several times a day for several years.
Counter-example: I did have issues with my old Samsung Galaxy S3's 3.5mm jack. Luckily the sound board was a relatively cheap and replaceable part and I only had to shave a little bit of plastic off to make it fit in my specific model :)
I've given up using the 3.5mm jack in situations where there might be stress on the plug (e.g. when you have your phone in your pocket). I've destroyed so many sets of headphones (or, in my case, replaced the cord on so many headphones) that it's just not worth it.

But there are situations in which I do use the 3.5mm jack, e.g. in my car.

In any case, it seems to me that co-locating the audio port with the USB port has another potential downside. If you destroy the 3.5mm headphone port you can still use and charge the phone (and use bluetooth headphones, for example). But if you destroy the USB port because your headphone cable torques in badly you have maybe 15 hours of life left in your phone before it's completely useless.

Sorry I'm with snovv_crash here. I can only speak for iphones, but I have never had a 3.5mm jack fail on me, and I used to go through a pair of headphones every 6 months or so.
I have broken one iphone's 3.5mm jack by biking in probably-too-tight pants while listening to something on my headphones, so if you're looking for anecdata, it does happen.
I believe that it happens, I am just saying that I believe the 3.5mm to be the toughest port on the phone in my experience.
I've had three die in the past 3 years: one on a desktop PC, two in phones.

I switched to bluetooth and lived with a muddier sound.

The 3.5 mm connector actually is pretty flaky.
and if it's lightning now I'm using that port significantly more than it was used initially, going from plugging into it once a day to 8+ times
Yesterday I spent hours trying to find a dedicated sound card. What I found instead is that my pci Audigy SE (one of the weakest soundblaster models) costs here new 120 usd and used 90 usd.

All this pain due to DRM.

DVD and HDMI companies (mostly Hollywood, but also directtv and some other subscription tv companies) pressured MS to get rid of all loopholes in Windows that let people ignore DRM.

Microsoft complied, removed HAL for audio, killing 3D sound as side effect, and created WDDM with draconian rules to get certified, among them that drivers weren't allowed to setup custom resolutions that weren't in EDID, requiring hacks (like CRU) to be able to use monitors to full capacity, effectively being the final strike against analog video, as most people could not figure how to use their 2560x1600 @80hz screens (on ms forums complaints are usually that they can't go beyond 1280x1024 @75hz even when they were sure it was 85hz in windows xp)

PCI Sound card? That sounds like an obsolete and out-of-date model. Why not a PCIe sound card for cheaper?

http://www.newegg.com/Product/Product.aspx?Item=N82E16829102...

$35 new.

But my understanding is that the ASUS Xonar is getting better reviws recently anyway. And that's $5 cheaper. Neither of these are "Audiophile grade" (which gets into $100+), but that's because Audiophiles demand higher-quality components.

http://www.newegg.com/Product/Product.aspx?Item=N82E16829132...

I am from Brazil.

Using a search engine that search all online stores, for "sound blaster" 3 models are available:

Audigy SE PCI (not PCI-e) for 100 USD Zx for 350 USD. ZxR 550 USD.

Xonar in that search engine, or any other, return 0 results.

Looking into "sound card" categories, there are lots of PCI sound cards, a incredible amount of USB "sound cards", and a couple different PCI-e 25 USD generic sound cards (with VIA, Realtek, etc... chips).

Also from what I've heard Xonar doesn't do OpenAL correctly anymore, because it relied on some Sensaura code in their drivers, and Creative in their typical jerk behaviour bought Sensaura and refused to renew the license.

Hmm, I dunno whats going on then. Maybe the market for PCIe cards in your country has dried up, so its not worth selling it. Simultaneously, I don't think that manufacturers are making PCI cards anymore, so naturally supply is going to dwindle and prices would go up.

On the other hand, USB DACs are a preferred choice by many audiophiles (many prefer PCIe of course... but a good chunk prefer USB). I wouldn't discount any of the USB DACs, although I'm personally not familiar with that market. I'd say just get a USB one, possibly one that has been verified by that insane audiophile community.

What's the purpose of a "dedicated" soundcard?

I'm an audio professional - from consumer to prosumer to pro, the best soundcards these days use USB (well, except for the Avid stuff).

I don't think this has anything to do with DRM. I think it has to do with the logic of building one device that works on everyone's computer and doesn't need drivers.

Historically, PCI / PCIe was required because it was the only way to move enough audio data at low latency back and forth to the computer. Historically what has plagued the manufacturers of dedicated devices is the difficulty of finding good driver developers and then getting drivers certified. I watched companies actually fail because they build a great audio device and couldn't get working drivers written for it once it was built (I'm thinking of Gadget Labs but I'm positive there was another one too).

Once USB became fast enough to do the job - and once USB Class drivers became a thing - the decision to build devices for USB (instead of for PCI which not all computers even have) became a no-brainer.

Dedicated soundcard, and drivers with direct access to hardware have nothing to do with audio professionals.

It is about processors on the card (that back then had about half of the amount of transistors that the PC main CPU had, so they could pack quite a punch in processing power) that could do realtime audio calculations.

I am not talking just about "effects" from the audio professional sense, I am talking about realtime creation of audio according to the scene geometry and stuff happening, for example A3D could calculate actual reflections, not just simulated reverb/echo.

If you want to see an example of this in real life: go near a window that has a barrier in front of it of some kind, in a relatively enclosed space.

Then wait for some noise to happen outside, in the direction opposite to the window.

Suppose you was facing "forward", the window (and the wall beyond it) is to your left.

Then an airplane passes by your right.

The naive way to do it (that is what most games today do without a soundcard to do it for them), is play sound from the right speaker (be it in a 5.1 or in the right speaker of a headphone), or to simulate it is "outside", play it muffled.

The correct way to do it, is play from the left, because it reflected on the wall, and came inside through the window. Vortex soundcards for example, made by Aureal, could calculate that (back then, only one reflection, so sequences of reflections that could go around corners didn't worked, but back then was 1996, this was already amazing, the Aureal+QSound sound card demo still impresses people to this day: https://www.youtube.com/watch?v=IUDTlvagjJA )

Mind you, these can't be done with USB, the protocol has too high latency (even with USB 3.1, due to the handshakes needed), in fact evne PCIe has too high latency compared to PCI, and when the switch from PCI to PCIe happened, soundcard makers had to put a ARM chip on the PCIe cards to do some calculations that originally were supposed to be done by the PC main CPU, because the latency of PCIe was too high.

Thanks for the lesson in acoustics but I'm not sure what any of this has to do with OP. He wanted a Soundblaster.

Also this doesn't add up:

> in fact evne PCIe has too high latency compared to PCI, and when the switch from PCI to PCIe happened, soundcard makers had to put a ARM chip on the PCIe cards to do some calculations that originally were supposed to be done by the PC main CPU, because the latency of PCIe was too high.

You say that the convolution was supposed to be performed by the host CPU, but had to be moved to the PCIe card due to latency. That doesn't add up. If the convolution can be calculated in realtime by the CPU, then the only data that has to travel to the soundcard is the 16/44 (or 2496) audio which is easily handled by PCI, PCIe, USB, etc. with negligible latency.

If a processor had to be introduced, it was to perform convolutions because the host CPU couldn't keep up.

> 3.5mm jacks are analogue, and they're everywhere

>As soon as headphones are digital, manufacturers can start locking down headphones.

The article is unclear, but the USB3.1 spec does specifically support analog audio over USB-C explicitly for compatibility with 3.5mm audio headsets. So if Motorola don't support this mode then you may have a point. But right now it's unclear exactly what this phone supports

> they'll put a 2.5mm jack on the phone, or cut the 3.5mm jack in half

If I need a passive adapter for my existing headsets, I'd rather get a USB-C port which supports analog audio. Atleast then my adapters would be standardized.

Doesn't the USB-C standard already have a well-defined way of connecting an analog headphone, using only a passive adapter? Download the standard and scroll to the end, it's an appendix. IIRC, it can even be used while charging, with the correct passive adapter.

The question then only becomes, is the phone's DAC connected to the USB-C connector, or did the manufacturer omit it to save a few traces in the board? Did anyone test that Moto-Z with a passive USB-C to 3.5mm socket adapter, to see what happens?

Assuming you mean the sideband pins, the article says that Intel is working on a standard to let those pins be used for analog audio.

If there's no standard way to communicate that "yeah, the sideband pins are now analog audio out from the host", I don't think you can buld USB-compliant accessories that assume that.

This would mean that the adapter (and/or low-cost headphones, I guess) would still need to include a CPU that can speak USB to negotiate with the host about the sideband pins, would be my assumption. A bit like how max current (used to) work.

> the article says that Intel is working on a standard to let those pins be used for analog audio

In that case, the article is wrong because the USB 3.1 spec already supports analog audio via the Audio Adapter Accessory Mode. Whether this phone supports this mode is unclear, but it's part of the existing spec explicitly to allow passive USB-C to 3.5mm adapters

Official spec: http://www.usb.org/developers/docs/

page 166 of the USB-C spec: http://www.those.ch/designtechnik/wp-content/uploads/2014/08...

One downside to the 3.5mm jack is that you hear a glitch whenever you plug-in or unplug a device. It would be nice if they could fix that.
Surely that's gotta be the least gripey gripe possible
I'm expecting with a digital connection, you'll instead have a long delay when it negotiates, and then if you have any lint in your port you can look forward to it disconnecting when you jostle the cable with a "this accessory is not supported by apple" error message like with chargers
Or you buy cheap ransomware earphones and hear a "to unlock your iPhone, please pay $xxx dollars to..".
Another downside is that when phone is in the pocket with headphones connected it is quite easy to accidentally yank it out - the jack turning around in the socket doesn't help the situation. I have USB Type-C devices for over a year now and so far the sockets are rock solid unlike micro USB used to be.
It's hard to see the upside of this, from a phone buyer end-user point of view. By looking at a USB C and 3.5mm jack next to each other for a moment, it is obvious this will enable only a minuscule additional thinning of devices. But at what cost? Most likely:

Significantly more expensive headphones for at least the next several years and possibly longer. If I were a headphone manufacturer I would be thrilled by this development. As a headphone buyer, less so.

In most cases we will give up being able to charge and listen at the same time, unless willing to add an additional external dongle. Meanwhile manufacturers will continue their, uh, curious belief that cell phone battery capacities are anywhere near good enough.

It's not minuscule at all. The 3.5mm jack is deeper than even the old dock connectors, and with a device as small as a phone every bit of space counts.
Having a single non-standard, unsupported (usb c) port for everything isn't progress, it's regress. No one wants this, especially for headphones but Apple and another clueless follower are pushing it anyway because they have the clout and they think people will buy it. Sounds like FireWire to me. That was an amazing success. Or thunderbolt. Or thunderbolt 2. Yeah I think it's clear by now Apple has an abysmal track record with such changes. Throw in something any knowledgeable consumer is against like removing the headphone jack and now you have a recipe for disaster. I hope so, not because I like others' pain but because this change, along with others, marks an anti consumer shift in policy. No longer does Apple even care what the consumer wants because it has the zombie sheep factor of millions of clueless idiots who will buy products that are clearly not in their best interests and require extra investment for no reason. Then again, Apple is hardly alone in such markets.
That's always been Apple's advantage. Trying to serve everybody's needs is what Windows was for a long time. Apple has a history of breaking compatibility and screwing over the few holdouts of the old products. I think that freedom is what allows them to design things that people really like. Now they have "zombie sheep", they can do even better without being forced to follow the market.
> Apple has an abysmal track record with such changes

Really?

Apple went all-USB, people complained. USB mice and keyboard became the standard.

Apple dropped the floppy drive, people complained. No floppy drive became the standard.

Apple dropped the CD drive, people complained. No CD drive (on laptops) became the standard.

Apple dropped full-size display connectors, people complained. This, too, became the standard on laptops.

> Apple dropped the CD drive, people complained. No CD drive (on laptops) became the standard.

> Apple dropped full-size display connectors, people complained. This, too, became the standard on laptops.

You need to step out of that Apple reality distortion field, not every laptop is an ultrabook.

Next time you go to a coffee shop, airport or train station, etc. look at the laptops you see and count how many have an optical drive.

Yes, some people do still have the older corporate IT bricks but even there the trend has clearly been to optimize for size and battery life. Display connectors are a bit of a confound since e.g. an HDMI connector is already a huge improvement over a VGA/DVI port but are clearly on a similar trajectory.

Yeah but it isn't like Apple invented the idea of the ultrabook.
The ultrabook was almost entirely a reaction to the MacBook Air. Read initial press reports about the ultrabook, they make that obvious. Like http://www.pcworld.com/article/246691/ultrabooks_laptops_as_...
The MacBook Air was almost entirely a reaction to the eeePC. Probably not really, but just as much as ultrabooks were to the macbook air.
Yes, the MacBook Air was a reaction to netbooks. But it was a different category of device, a high-end ultraportable. The same category of device that Ultrabooks fit into.
I don't see anyone making that claim. All of the major players experimented with small laptops – just as there were small PowerBooks, there were small ThinkPads, Vaios, etc. going back to the 1980s. – but for a long time the engineering tradeoffs were too extreme.
> Apple dropped full-size display connectors, people complained. This, too, became the standard on laptops.

Not really. They had a few generations that just had a DisplayPort connector. Now Macbook Pros have HDMI plugs, which are full sized connectors these days.

> Apple went all-USB, people complained. USB mice and keyboard became the standard.

LOL. Apple started with Apple Desktop Bus and then when that failed they tried unsuccessfully to force Firewire on their users and only caved and went with USB when literally the rest of the world switched to USB.

> Apple dropped the floppy drive, people complained. No floppy drive became the standard.

I don't think Apple was the first company to make a computer without a floppy.

> Apple dropped the CD drive, people complained. No CD drive (on laptops) became the standard.

I don't think Apple was the first company to drop the CD drive.

Moreover how is "lack of something" a standard?

> Apple dropped full-size display connectors, people complained. This, too, became the standard on laptops.

You live in a bubble. Did you know that lots / most of non-Apple products use HDMI outputs?

Apple has a long history of foisting "nonstandards" on its users (and then selling them God-awfully-expensive cables). Starting with ADB and SCSI, AppleTalk, Firewire, Thunderbolt, DisplayPort, etc. I've been an Apple customer since before the Mac existed, and I've had to put up with Apple's insistence of constantly opposing whatever connector trend was mainstream with the rest of the world.

> LOL. Apple started with Apple Desktop Bus and then when that failed they tried unsuccessfully to force Firewire on their users and only caved and went with USB when literally the rest of the world switched to USB.

You really need to learn about the subject before trying to “correct” other people:

* ADB had a 13 year run starting in 1986: https://en.wikipedia.org/wiki/Apple_Desktop_Bus

* Firewire is a standard (IEEE 1394) and was intended as a replacement for high-performance SCSI interfaces, which is why it focused on transfer speed and scalability at the expense of cost — and was complete overkill for keyboards, mice, etc. https://en.wikipedia.org/wiki/IEEE_1394#History_and_developm...

* Apple was the first major manufacturer to standardize on USB and helped drive its adoption – in fact, it wasn't until the second generation iMac before they even added a Firewire port: https://en.wikipedia.org/wiki/USB#History https://en.wikipedia.org/wiki/IMac_G3#iMac_.28tray-loading.2...

This is particularly amusing for anyone who was around in the 90s because back then there were more than a few people like you were decrying USB as Apple's attempt to get consumers to waste a ton of money replacing perfectly good hardware just to have a new connector with, as they felt was obvious, no significant benefit to the user.

As for the rest of your “points” do note that you're arguing against “Apple was first” claims which were never made. Each of the actual statements made are simply factual — every time Apple dropped a feature, people complained. They got over it and most of the market turned out not to care but that doesn't mean that there weren't opinion pieces, angry rants, etc.

> This is particularly amusing for anyone who was around in the 90s

But that's just it: I was around in the 1990s and I owned Macs and PCs throughout that period.

ADB had a 13-year run, sure, but it wasn't a "standard" for any device except a Mac. PCs used PS/2 connectors.

Firewire is a standard, but Apple was the only company really pushing it.

You're right - and I'm dead wrong - about Apple pushing USB.

> it wasn't until the second generation iMac before they even added a Firewire port

I thought Firewire was a common option on G3s in the late 1990s? May be misremembering.

> was intended as a replacement for high-performance SCSI interfaces

Thanks for bringing that up. Yes at the time SCSI interfaces were more high-performance than IDE (and allowed more devices) but only at the expense of the more common emergent standard of IDE / EIDE.

You do raise some good points however, and you're also right that of course Firewire wasn't a replacement for ADB, I'm not really sure why I said that :(

Lack of an optical drive is not a result of innovation by the hardware makers.

The ability to install any OS from a USB (as well as USB capacity improvements), streamable music and Steam game libraries as well as overall penetration of broadband simply made including an optical drive pointless from a data density standpoint, especially on laptops, where space is at a premium.

The exact case goes for the floppy.

Sure, it's not an innovation, but dropping it early or first, to push people to move to alternatives, is a bold move.
> non-standard

Check again. "The USB Type-C Specification 1.0 was published by the USB Implementers Forum and was finalized in August 2014." (https://en.wikipedia.org/wiki/USB_Type-C)

USB Type C is a de jure standard only: the de facto standards are 3.5mm TRSS for analog audio and Micro-USB for charging and PC connections.
> And here's the problem: The DAC and amp inside that $50 pair of digital headphones are not going to be of the same quality as those in a $500 pair. Nor will the sound they output be afforded the same time and effort. Instead of trusting in your phone's DAC and amp to output decent-quality audio at decent volumes, you'll now be contending with the choices of a company that has had to cut corners to put out headphones on a tight budget.

This sounds like a good reason for the change rather than an argument against it.

Audio performance is determined by the quality of the DAC, the amp, the speakers, and the enclosure. If the DAC and amp are part of the headphones, then all factors affecting audio performance are independent of the phone. You can decide what level of audio performance you want and then buy headphones that provide that performance.

Also, many people use the same set of headphones with multiple devices. When I'm buying devices I consider how they fit in with my other devices. If I have a higher end tablet I might buy a lower end phone because many of the things I would have done on the phone had I only had a phone will be done on the tablet. Device makers tend to put the better DACs and amps in the higher end devices, and so under the current approach if I want the best audio on all my devices, all of them have to be higher end devices (and I have to get expensive headphones too).

> You can decide what level of audio performance you want and then buy headphones that provide that performance.

That's a great point. And for people like me who don't use audio on their phones ( other than the occasional voice call ) it means I'm not paying for other people's use-cases.

I've been using a SonyEricsson MW600 Bluetooth adapter for my headphones for a couple of years - it pairs with up to three devices, the audio quality is pretty good (audiophile colleagues tried it with their hideously expensive headphones and said it was "surprisingly decent"), the battery lasts me around a week depending on use, and it charges via a standard micro-USB connector.

Love it so much that when the tieclip-style clip broke, I ordered a new clip off eBay instead (Sony has a couple of successors to it, but I'll pass until this one completely dies on me).

I think this is a more interesting solution than changing physical connectors.

I don't want a thinner phone.

Cellphone thinness reached the "good enough" stage a very long time ago. Then all making them thinner did was start to make compromises for that thinness. For one example, while components and software continue to get more and more power efficient, they're removing more raw battery capacity within the phone so they can shave 1mm.

No 3.5mm is a deal breaker for me. I don't want to have to remember to charge my headphones, or add extra weight to my IEMs, plus now I cannot charge and listen at the same time (or use the port for anything else).

All this move will result in is more people sitting on public transport blasting audio through the front speakers because their headphones died or they cannot afford $100 IEMs or $150 headphones. I think it will be extremely telling if the iPhone continues to ship with free IEMs, if not then that is proof enough that even Apple cannot make the economics work.

Overall this is a horrible step backwards.

> Cellphone thinness reached the "good enough" stage a very long time ago. Then all making them thinner did was start to make compromises for that thinness

100% agree. Instead of my phone being 1.5mm thicker, I'm carrying around a huge silicon case with a battery and a bunch of circuitry included.

Although I'm sure that's all based on studies that 85% of users don't need more battery life on 90% of the days out of the year, and 96% of users when confronted with a prototype phone that was 0.5mm thicker replied "oooh I would buy this". The tyranny of the market.

That said...

> No 3.5mm is a deal breaker for me

I switched to using bluetooth headphones in 2006 (was that really a decade ago?), so the disappearance of the 3.5mm jack in particular doesn't affect me at all.

I must be one of the few who is actually not against this move. I am all for not having a 3.5mm anymore. I really see no need. Things should start becoming more wireless. Heck get rid of the usb-c/lightning and just use wireless charging.
I assume the switch away from 3.5mm will come along with the elimination of the physical home button (replaced with a purely force-touch version) and the extension of the screen to more fully cover the full face of the phone.

I do hope they put a lightning connector on both ends. That way we're not losing a port but at least trading it for something which is arguably better. I frequently could use a top-side power port, e.g when the phone is sitting in a cup-holder showing GPS but needs a charge, and the app won't rotate 180'.

For backward compatibility, could the lightning port drive an analog output that would just require an analog adaptor to allow connecting existing headphones?

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The elephant in the room is Bluetooth - Bluetooth 5.0 spec is coming out this week, I think. And there are the codecs like AptX, etc.

I'm shocked at how good the sound quality is on my Sennheiser Momentum 2.0 Bluetooth headphones. If anyone had told me that I could get that kind of dynamic range and nuance in the audio over Bluetooth, I wouldn't have believed him. And that's with Bluetooth 4.x.