The official name is a Lightning connector or USB-C connector, depending on your iPhone model

Apple calls the physical port on your iPhone a Lightning connector if you have an iPhone 14 or older. If you have an iPhone 15 or newer, it is a USB-C connector. The cable itself — the thing you hold — is called a Lightning cable or USB-C cable. The power brick that plugs into the wall is called a power adapter or USB power adapter.

Most people just say "iPhone charger" in conversation, and that works fine. But when you are shopping for a replacement or troubleshooting a problem, knowing the real names saves you from buying the wrong thing or getting confused by support articles.

Key Takeaways

  • iPhones 14 and older use Lightning connectors; iPhones 15 and newer use USB-C connectors.
  • The cable is called a Lightning cable or USB-C cable; the wall plug is called a power adapter.
  • A Lightning cable will not work with a USB-C iPhone, and vice versa.
  • When shopping for replacements, search for the specific connector type your phone uses, not just "iPhone charger".

Lightning connectors: what iPhones used until 2023

The Lightning connector is the eight-pin rectangular port that Apple designed and used on iPhones from the iPhone 5 (2012) through the iPhone 14 (2022). It is smaller and more durable than the older 30-pin connector that came before it. If your iPhone has a small rectangular port that is flat on both sides, you have a Lightning connector.

Lightning cables come in different lengths — usually 1 meter (about 3 feet) or 2 meters (about 6 feet). They also come in different speeds. A standard Lightning cable charges your phone, but a Lightning to USB-C cable (yes, that is the name) charges faster if you use it with a USB-C power adapter. The cable itself does not determine speed; the power adapter does.

USB-C connectors: what iPhones use now

Starting with the iPhone 15 in 2023, Apple switched to USB-C connectors. This is the same oval-shaped port you probably already have on Android phones, tablets, and laptops. A USB-C connector is reversible — you can plug it in either way — and it supports faster charging than Lightning did.

If you have an iPhone 15, 15 Plus, 15 Pro, or 15 Pro Max, you need a USB-C cable and a USB-C power adapter. The good news is that USB-C cables are cheaper and more common than Lightning cables were, because they work with dozens of other devices. The bad news is that your old Lightning cables will not work at all.

Power adapters and what wattage means

The power adapter is the brick that plugs into the wall. It converts wall electricity into the right voltage and current for your phone. Apple sells power adapters in different wattages: 5W, 20W, 30W, and higher. The wattage tells you how fast it can charge.

A 5W adapter (the oldest kind) charges slowly. A 20W adapter charges a modern iPhone to 50 percent in about 30 minutes. A 30W or higher adapter charges even faster, but your iPhone will only draw as much power as it needs, so a more powerful adapter will not damage your phone. You can use any USB-C power adapter with any USB-C iPhone, even if it came from a different brand.

The difference between cables and adapters

People often use "charger" to mean the whole setup, but technically the cable and the adapter are separate things. You can have a Lightning cable plugged into a USB-C power adapter (if you buy the right cable), or a USB-C cable plugged into a 5W adapter. The cable carries the electricity; the adapter controls how much electricity flows.

If your phone charges slowly, the problem is usually the power adapter, not the cable. If your phone will not charge at all, the problem is usually the cable or the port on your phone. Testing with a different cable or adapter tells you which one is broken.

Why Apple changed from Lightning to USB-C

Apple used Lightning for 11 years because it was smaller and more durable than the USB connectors available at the time. By 2023, USB-C had become the standard on almost every other device — phones, tablets, laptops, headphones. The European Union also passed a law requiring phones to use USB-C by 2024, which pushed Apple to make the switch.

The benefit to you is that you now have one cable type that works with your iPhone, your laptop, your tablet, and your friends' phones. You do not need a drawer full of different cables anymore. The downside is that all your old Lightning cables and adapters became obsolete if you upgraded to an iPhone 15.

What to look for when buying a replacement

Before you buy a new cable or adapter, check which iPhone model you have. Open Settings, tap General, then tap About. Look for the model name — it will say "iPhone 15" or "iPhone 14" or whatever you own. If it says 15 or higher, you need USB-C. If it says 14 or lower, you need Lightning.

When you search for a replacement, use the specific name: "USB-C cable" or "Lightning cable", not just "iPhone charger". This narrows the results to the right product. Apple's official cables cost more but come with a warranty. Third-party cables from brands like Anker or Belkin are cheaper and work just as well, as long as they say they are certified for your connector type.

Frequently Asked Questions

Can I use a Lightning cable with an iPhone 15?

No. iPhone 15 uses USB-C, and Lightning cables will not fit the port. If you upgrade from an iPhone 14 to an iPhone 15, your old Lightning cables will not work. You will need to buy USB-C cables.

Do I need to buy Apple's official power adapter?

No. Any USB-C power adapter will work with a USB-C iPhone, even if it came from another brand. Third-party adapters are usually cheaper and work just as well. Just make sure it is USB-C, not an older USB-A adapter.

Why does my iPhone charge slowly with a new cable?

The cable is probably fine. Slow charging usually means your power adapter is low wattage (like a 5W adapter) or your phone is too hot. Try a higher-wattage adapter, or let your phone cool down before charging again.

Is a "fast charger" different from a regular charger?

A fast charger is just a higher-wattage power adapter — usually 20W or more. The cable does not determine speed. A 20W adapter with any USB-C cable will charge faster than a 5W adapter with the same cable.

What does "MagSafe" mean on iPhone chargers?

MagSafe is a magnetic ring that attaches to the back of your iPhone and lets you snap a wireless charger onto it without plugging in a cable. It is optional — your iPhone charges fine with a regular wired cable. MagSafe chargers are more expensive but convenient if you charge wirelessly.