iPhone 15 USB-C Port: What it Can (and Can't) Do

Written by: Joanavi Fernan

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How Does the iPhone 15 USB-C Port Enhance User Experience?

The arrival of the iPhone 15 series sparked a significant conversation in the tech world, primarily due to its groundbreaking shift from Apple's proprietary Lightning port to a more universal standard - the USB-C port12. This change brings a host of new capabilities and potential challenges that users need to be aware of. What exactly does the USB-C port mean for iPhone users? Let's break it down and see what this new feature can do and what it can't.

USB-C Speeds and Cables

The iPhone 15 series introduces the USB-C port across all four models. However, the capabilities differ not just among the models but also with other USB-C accessories you may have.


One of the significant differences among the iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max lies in data speeds. The base models, iPhone 15 and 15 Plus operate at USB 2.0 speeds. That's the same speed as the Lightning connector they've replaced, offering you a data transfer speed of 480 megabits per second.



On the other hand, the Pro models step up their game. The iPhone 15 Pro and 15 Pro Max support USB 3 speeds, allowing you to reach up to 10 gigabits per second. But remember, to achieve these speeds, you'll need a cable that can handle it.



Are you confused about USB-C cables? You're not alone. Although these cables look similar, a charging cable differs from a data cable. Apple includes a charging cable with its phones, which provides enough power for your iPhone but operates only at USB 2 speeds.



You'll need to provide your own faster cable for the Pro models that support faster speeds. Why does Apple choose to include only a charging cable? There could be several reasons, from cost-saving to durability concerns. Most users don't transfer data with their cables, so including a faster, more expensive cable isn't necessary for everyone.

Charging Capabilities

iPhone 15 USB-C Speed

So, how fast can the new iPhones charge via USB-C? Well, the iPhone 14 series is the fastest. Both series can be charged at up to 27 watts of power when using an appropriate 30-watt power adapter or higher.



The USB-C port on the new iPhones can output power at 4.5 watts, which is plenty for many small accessories. You can charge your other Apple devices, like AirPods or an Apple Watch, directly from your iPhone using a USB-C to Lightning cable or a USB-C to USB-C cable if you're using the Pro models.


Imagine being out and about with only one cable in your car, and your iPhone and Apple Watch need a power boost. You can plug your Apple Watch into your iPhone and get that much-needed charge. Now, that's convenient!

Power Sharing Between iPhones

But what about charging another iPhone? Yes, you can do that too! If you connect one USB-C iPhone to another, the phone with a lower battery level will draw power from the one with a higher battery level.


For instance, if you have one phone with an 80% battery and a second phone with 40%, connecting them with a USB-C to USB-C cable will transfer power from the 80% phone to the 40% phone. This feature also works with Android devices, provided they support USB-C PD (Power Delivery).

A Word of Caution

While this feature is undoubtedly handy, there's a catch you should be aware of. If you connect a Lightning iPhone (iPhone 14 or earlier) to a USB-C iPhone. The Lightning phone will always draw a charge, regardless of its battery level.



Lightning doesn't support USB-C power delivery, so it cannot output power independently or determine which phone needs more power. This means if your iPhone 15 is at 10% battery and your Lightning iPhone is at 90%, the Lightning iPhone will still draw power from your iPhone 15. Therefore, be careful not to deplete your iPhone 15 battery by charging other devices.

Expanded Accessory Compatibility

With the new USB-C ports, a whole new market of USB accessories can now work with your iPhone. These include cameras, microphones, gaming controllers, external displays, storage devices, wired headphones, CarPlay vehicles, Ethernet adapters, and card readers. You can also connect keyboards and mice via USB-C. 

Lightning VS USBC

Display Output

When it comes to external display capabilities, you can use a USB-C to USB-C cable to connect a monitor for your laptop or desktop to your iPhone. It'll support an external monitor at 4K and 60Hz. If you're connecting a television, you can do so over HDMI using Apple's existing digital AV adapter that's USB-C to HDMI.



This works seamlessly with the new iPhone 15 series. This compatibility extends to third-party USB accessories, too. So, what does this mean for you? You can connect your iPhone to a TV using an HDMI cable. The new iPhones will support 4K resolution at a refreshing rate of 60Hz, HDR, and Dolby Vision, bringing your favorite shows and movies to life like never before.



One exciting application of this feature that we've noticed circulating on social media is the gaming potential to transform your iPhone into a mini gaming console. All you need to do is connect your iPhone to a national display, pair it with a wireless controller, and voila! You have your very own gaming console.



Imagine when Assassin's Creed launches on iPhone. You could plug your phone into your television, sit back on your couch, and immerse yourself in the game on the big screen. It's an incredibly cool concept and shows just how versatile the iPhone has become with the addition of USB-C.

Final Thoughts

The introduction of the iPhone 15 USB-C is undoubtedly exciting. The possibilities are endless, and we're eager to see how you will use this new feature. Will you use it to charge other devices, connect to a vast array of accessories, or transform your iPhone into a mini gaming console?



So go ahead, explore this feature, and unlock the full potential of your iPhone 15! Remember, innovation starts with curiosity and a willingness to experiment. With the power of USB-C at your fingertips, who knows what you might discover?

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Frequently Asked Questions

Why Apple moved to USB-C?

For quite some time, Apple has been known for using unique ports in its devices. With the iPod, we saw the 30-pin connector, and with previous iPhone models, the Lightning port was used. This is often seen as a tactic to maintain a closed system for their product range. However, there's been a shift in this approach recently.



With the release of the iPhone 15 series, Apple has made a significant change by adopting the USB-C port. This move comes after years of resistance to moving away from the Lightning port. The decision wasn't solely Apple's, however. The EU had a significant role in pushing for this transition. Despite the resistance, Apple has finally embraced the use of USB-C in its latest iPhones, marking a notable turn in its design philosophy.

What is the speed of USB-C charging for the iPhone 15?

When it comes to the iPhone 15, USB-C charging speeds are just as crucial as transfer speeds. Despite the switch to USB-C, the charging rate for the iPhone 15 series remains surprisingly consistent with previous models.

Interestingly, there's no increase in wired charging speed across all iPhone 15 models, even the Pro versions, which boast faster USB 3 transfer rates. The iPhone 15, 15 Plus, 15 Pro, and 15 Pro Max all maintain the same charging speed as their forerunners. According to Apple, the iPhone 15 and 15 Pro can reach a 50% charge in 30 minutes using a 20W power adapter, while the larger iPhone 15 Plus and 15 Pro Max take slightly longer, reaching 50% in 35 minutes.

Is there a possibility of more iPhones with USB-C ports?

iPhone 15 is the only model equipped with a USB-C port at this time. However, Apple has also declared that they will begin to offer AirPods charging cases with this port.

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Joan F.

I'm a tech nerd who's obsessed with technology and innovation. With plenty of experience in the tech world, I enjoy sharing tips and tricks to help folks get the most out of their devices. When I'm not glued to my screen, you can find me hiking or cooking up in the kitchen.