Technologies

IPhone 15 and USB-C: Expect a Cable Mess, but It Might Not Bug You

Commentary: USB-C’s versatility in charging and data transfer brings complications that millions of customers will now get to experience firsthand.

I love USB-C, the data and charging port I first encountered in my 2016 MacBook Pro that’s now spread to almost every device in my life.

I wanted a USB-C iPhone in 2018, back when Apple first added that tech to the iPad Pro. I grew more optimistic in 2021, when Apple spread USB-C to lower-end iPads. And though I’m skeptical that regulation is the best way to direct product development, I’m not displeased that the European Union has now pushed Apple toward USB-C. Charging everything with USB-C is great for me.

So I’m psyched the iPhone 15 models all get USB-C ports. But here’s the bad news Apple didn’t share at its iPhone launch event Tuesday: Millions of people entering the USB-C ecosystem will encounter the technology’s ugly side, too.

The utility and flexibility of USB-C are tainted by confusion over just what the heck comes along with that USB-C port on the side of a device and the cable you plug into it. In short, it’s not always obvious whether your device or cable supports high-speed data transfer, high electrical power for fast charging, both, or neither.

As the rumors predicted, the iPhone 15 will ship with a USB-C port and charging cable that’ll give customers a taste of the trouble. That cable reportedly will be fine for charging but will transfer data at a mere 480 megabytes per second, the poky speed that arrived with the USB 2.0 standard from 2000.

During its launch event, Apple conspicuously avoided saying anything about how fast the iPhone 15 USB-C port is, but the spec sheet says it’s only slow USB 2.0. The iPhone 15 Pro models will work at the more useful 10Gpbs speed of USB 3.

More from the Apple event

For most folks, the problem is likely to be merely an inconvenience. But it reflects the difficulties of the vast USB ecosystem, where the pressure to keep costs low is fierce and certification isn’t required. USB-C is a much faster, more useful connection technology than the Apple Lightning port iPhone users have had since 2012, but Apple customers will have to endure some pain leaving the cozy Lightning world.

Apple didn’t respond to a request for comment for this article. But it did tout this major change on what’s arguably the single most important gadget on the planet. For one thing, USB-C means a single charging cable is all you need for many Apple devices. For another, you’ll be able to use your iPhone to charge your AirPods. And on iPhone 15 Pro phones, you’ll be able to record data-intensive 4K 60fps ProRes video to an external storage device.

The triple whammy USB mess

Part of the problem with USB is that the term actually refers to three separate standards. Let me explain.

The original standard, Universal Serial Bus, governs how devices identify themselves and send data across a connection. USB arrived in 1996 with a top speed of 12Mbps, but USB 2.0 was much more useful at 480Mbps, enough for printers and thumb drives. The first big speed jump after that was USB 3.0 in 2008 at 5 gigabits per second, better for external hard drives. Successors hit 10Gbps, 20Gbps, and most recently 40Gbps with USB 4. The upcoming USB 4 version 2 should reach 80Gbps. That’s good for high-performance storage systems, fast networks, and big, high-resolution monitors.

The next standard is USB-C, which refers only to the oval-shaped connector technology. Earlier in USB-C’s history, it was common for Android phones to support only slow USB 2.0 data transfer speeds, though that problem has faded with newer models. The newest USB standard, USB 4.0, requires USB-C ports, so as time goes by, it’ll be fairer to equate USB-C with high speed.

Last is USB PD, short for Power Delivery, which governs how USB is used for charging at rates up to 240W. Most devices don’t require that much power, but they do need to know how to negotiate electrical matters — for example, whether a portable battery should charge your laptop or vice versa.

A compact USB-C charging cable with dark gray aluminum cable ends on one side and a keychain loop at the other. The cable rests across three fingers of a person's hand.

Having three standards — USB, USB-C and USB PD — makes it harder to understand the abilities of all your devices and cables.

Worse, plenty of device manufacturers trying to cut costs and quickly ship products skip the certification process that the USB Implementers Forum offers. Unlike with Intel’s Thunderbolt, which developed the fast data transfer approach in modern USB, there’s no requirement to pass tests.

Low costs fuel USB-C’s problems

Nobody wants to spend $60 instead of $15 for a USB cable. But be careful: You get what you pay for, roughly. It’s more expensive to build cables that support high-speed data or high-power charging. One rule of thumb: Cables billed as «charging cables» in my experience don’t bother with the extra cost of high-speed data support. That includes the USB-C cables Apple itself shipped with MacBooks for several years.

One affordable cable I saw billed itself as a USB 4 product, but on deeper inspection, it turned out to support only USB 2.0 data transfer. Either the manufacturer was confused, lying, or trying to argue that the cable would work in a USB 4 port even if it only supported slow data rates. (USB’s good backward compatibility means slower, older products generally still work fine when attached to newer ones.)

I haven’t struggled too much with the slow cable problem. Mostly I use USB-C for charging, and my devices that need fast connections stay attached to their own fast cables.

But problems can happen. A couple of months ago, when I got a new Canon mirrorless camera, I was caught on a trip with slow cables that really bogged down the process of transferring photos to my laptop.

When USB-C is a problem and when it’s not

The good news for future iPhone owners is that most of them won’t have to care much about whether they have a slow cable. Indeed, iPhone 15 non-Pro phone owners won’t be able to benefit from the speeds of a fast cable even if they have one.

Data rates were more important in the olden days when we used iTunes to sync music and photos between laptops and iPhones. Even as photo and video files have exploded in size with 50-megapixel phone cameras and 4K video, most of us get that data off our phones with mobile networks, Wi-Fi and AirDrop, not with cables.

USB-C Everywhere

That’s the big reason Apple could mostly justify shipping an iPhone 15 with a USB 2.0 cable.

Now, for serious data hogs, the kind of person who’s shooting many gigabytes of 4K ProRes video, a faster cable is useful. It’s one reason I’ve been annoyed with the Lightning port on my iPhone. Those customers will, I hope, generally be discriminating enough to find a high-quality cable for their needs — or, if rumors are correct, just use the faster cable that Apple will ship with iPhone 15 Pro models. (Apple hasn’t yet revealed what’s ships with the new phones.)

I prefer buying USB-C products that have passed USB-IF’s compliance testing. I look for the USB-IF certifications, and I love it when companies like Plugable attach clear descriptive labels so we don’t have to decode USB-IF icons. (And most products don’t even have icons.)

A close-up view of the USB-C and Lightning connectors at the ends of an Apple charging cable.

But if you’re nervous about doing the product comparisons yourself, you can always let Apple sales staff steer you to higher-end Apple USB-C accessories that generally work well together even if they’re often more expensive than third-party products.

USB-C transition less painful than Lightning

There was plenty of kvetching when Apple switched to the Lightning port, even though it was clear Lightning was superior to the bulky, fragile 30-pin connector that preceded it. I’m expecting more complaints with the iPhone’s USB-C switch as people discover that all those cables they have stashed in glove boxes, office desks, school backpacks and bedside tables have become obsolete.

But the good news is that USB-C is already very well established, and not just on MacBooks and many iPads. The oval-shaped connector is on modern Android phones, Windows laptops, Nintendo Switch gaming consoles, iPad Pro and Air tablets, Sony noise-canceling headphones and countless other devices. There’s a good chance a lot of us already have some spare USB-C cables lying around.

When I talk to USB-IF executives about the USB-C’s labeling problems, they assure me that most people don’t notice any sort of bother, and that the gradually maturing technology will mean incompatibilities and product shortcomings eventually will slip into the back of our collective junk drawers.

I hope so. For me, the flexibility and power of USB-C is well worth the pain. But I do wish there wasn’t so much pain.

Technologies

Tariffs Explained: Latest on Trump’s Shifting Import Tax Plan, and What It Means

Technologies

Apple, I’m (Sky) Blue About Your iPhone 17 Air Color

Commentary: The rumored new hue of the iPhone 17 Air is more sky blah than sky blue.

I can’t help but feel blue about the latest rumor that Apple’s forthcoming iPhone 17 Air will take flight in a subtle, light-hued color called sky blue.

Sky blue isn’t a new color for Apple. It’s the featured shade of the current M4 MacBook Air, a shimmer of cerulean so subtle as to almost be missed. It’s silver left too close to an aquarium; silver that secretly likes to think it’s blue but doesn’t want everyone else to notice.

Do Apple employees get to go outside and see a real blue sky? It’s actually vivid, you can check for yourself. Perhaps the muted sky blue color reflects a Bay Area late winter/early spring frequent layer of clouds like we typically see here in Seattle.

«Who cares?» you might find yourself saying. «Everyone gets a case anyway.» I hear you and everyone else who’s told me that. But design-focused Apple is as obsessive about colors as they are about making their devices thinner. And I wonder if their heads are in the clouds about which hues adorn their pro products.

Making the case for a caseless color iPhone

I’m more invested in this conversation than most — I’m one of those freaks who doesn’t wrap my phone in a case. I find cases bulky and superfluous, and I like to be able to see Apple’s design work. Also, true story, I’ve broken my iPhone screen only twice: First when it was in a «bumper» that Apple sent free in response to the iPhone 4 you’re-holding-it-wrong Antennagate fiasco, and second when trying to take long exposure starry night photos using what I didn’t realize was a broken tripod mount. My one-week-old iPhone 13 Pro slipped sideways and landed screen-first on a pointy rock. A case wouldn’t have saved it.

My current model is an iPhone 16 Pro in black titanium — which I know seems like avoiding color entirely — but previously I’ve gone for colors like blue titanium and deep purple. I wanted to like deep purple the most but it came across as, in the words of Patrick Holland in his iPhone 14 Pro review, «a drab shade of gray or like Grimace purple,» depending on the light.

Pros can be bold, too

Maybe the issue is too many soft blues. Since the iPhone Pro age began with the iPhone 11 Pro, we’ve seen variations like blue titanium (iPhone 15 Pro), sierra blue (iPhone 13 Pro) and pacific blue (iPhone 12 Pro).

Pacific blue is the boldest of the bunch, if by bold you mean dark enough to discern from silver, but it’s also close enough to that year’s graphite color that seeing blue depends on the surrounding lighting. By comparison, the blue (just «blue») color of the iPhone 12 was unmistakably bright blue.

In fact, the non-Pro lines have embraced vibrant colors. It’s as if Apple is equating «pro» with «sophisticated,» as in «A real pro would never brandish something this garish.» I see this in the camera world all the time: If it’s not all-black, it’s not a «serious» camera.

And yet I know lots of pros who are not sophisticated — proudly so. People choose colors to express themselves, so forcing that idea of professionalism through color feels needlessly restrictive. A bright pink iPhone 16 might make you smile every time you pick it up but then frown because it doesn’t have a telephoto camera.

Color is also important because it can sway a purchase decision. «I would buy a sky blue iPhone yesterday,» my colleague Gael Cooper texted after the first rumor popped online. When each new generation of iPhones arrive, less technically different than the one before, a color you fall in love with can push you into trading in your perfectly-capable model for a new one.

And lest you think Apple should just stick with black and white for its professional phones: Do you mean black, jet black, space black, midnight black, black titanium, graphite or space gray? At least the lighter end of the spectrum has stuck to just white, white titanium and silver over the years.

Apple never got ahead by being beige

I’m sure Apple has reams of studies and customer feedback that support which colors make it to production each year. Like I said, Apple’s designers are obsessive (in a good way). And I must remind myself that a sky blue iPhone 17 Air is a rumored color on a rumored product so all the usual caveats apply.

But we’re talking about Apple here. The scrappy startup that spent more than any other company on business cards at the time because each one included the old six-color Apple logo. The company that not only shaped the first iMac like a tipped-over gumdrop, that not only made the case partially see-through but then made that cover brilliant Bondi blue.

Embrace the iPhone colors, Apple.

If that makes you nervous, don’t worry: Most people will put a case on it anyway.

Technologies

Astronomers Say There’s an Increased Possibility of Life on This Distant Planet

Using the James Webb Space Telescope, astronomers are working to confirm potential evidence of life on a distant exoplanet dubbed K2-18b.

Astronomers are nearing a statistically significant finding that could confirm the potential signs of life detected on the distant exoplanet K2-18b are no accident.

The team of astronomers, led by the University of Cambridge, used data from the James Webb Space Telescope (which has only been in use since the end of 2021) to detect chemical traces of dimethyl sulfide (DMS) and/or dimethyl disulfide (DMDS), which they say can only be produced by life such as phytoplankton in the sea.

According to the university, «the results are the strongest evidence yet that life may exist on a planet outside our solar system.»

The findings were published this week in the Astrophysical Journal Letters and point to the possibility of an ocean on this planet’s surface, which scientists have been hoping to discover for years. In the abstract for the paper, the team says, «The possibility of hycean worlds, with planet-wide oceans and H2-rich atmospheres, significantly expands and accelerates the search for habitable environments elsewhere.»

Not everyone agrees, however, that what the team found proves there’s life on the exoplanet.

Science writer and OpenMind Magazine founder Corey S. Powell posted about the findings on Bluesky, writing, «The potential discovery of alien life is so enticing that it drags even reputable outlets into running naive or outright misleading stories.» He added, «Here we go again with planet K2-18b.Um….there’s strong evidence of non-biological sources of the molecule DMS.»

K2-18b is 124 light-years away and much larger than Earth (more than eight times our mass), but smaller than Neptune. The search for signs of even basic life on a planet like this increases the chances that there are more planets like Earth that may be inhabitable, with temperatures and atmospheres that could sustain human-like lifeforms. The team behind the paper hopes that more study with the James Webb Space Telescope will help confirm their initial findings.

More research to do on finding life on K2-18b

The exoplanet K2-18b is not the only place where scientists are exploring the possibility of life, and this research is still an early step in the process, said Christopher Glein, a geochemist, planetary researcher and lead scientist at San Antonio’s Southwest Research Institute. Excitement over the significance of the research, he said, should be tempered.

«We need to be careful here,» Glein said. «It appears that there is something in the data that can’t be explained, and DMS/DMDS can provide an explanation. But this detection is stretching the limits of JWST’s capabilities.»

Glein added, «Further work is needed to test whether these molecules are actually present. We also need complementary research assessing the abiotic background on K2-18b and similar planets. That is, the chemistry that can occur in the absence of life in this potentially exotic environment. We might be seeing evidence of some cool chemistry rather than life.»

The TRAPPIST-1 planets, he said, are being researched as potentially habitable, as is LHS 1140b, which he said «is another astrobiologically significant exoplanet, which might be a massive ocean world.»

As for K2-18b, Glein said many more tests need to be performed before there’s consensus on life existing on it.

«Finding evidence of life is like prosecuting a case in the courtroom,» Glein said. «Multiple independent lines of evidence are needed to convince the jury, in this case the worldwide scientific community.» He added, «If this finding holds up, then that’s Step 1.»