How to Find the Serial Number on Your iPhone

Every iPhone has a unique serial number — a manufacturer-assigned identifier that Apple uses to verify your device, check warranty status, process repairs, and confirm authenticity. Knowing where to find it (and understanding why you might need it) can save you real time when dealing with Apple Support, carrier unlocks, insurance claims, or second-hand purchases.

What Is an iPhone Serial Number?

An iPhone serial number is a 12-character alphanumeric string that uniquely identifies your specific device. It encodes information like the manufacturing location, production date, and model configuration. Unlike the IMEI (which identifies your device on cellular networks), the serial number is Apple's internal identifier — used primarily for warranty lookups, service records, and hardware verification.

Both are useful, but they serve different purposes. When Apple Support asks for your serial number, they're checking your device's service history and coverage. When a carrier asks for your IMEI, they're verifying network eligibility.

Method 1: Find It in iPhone Settings 📱

This is the easiest method when your iPhone is powered on and accessible.

1. Open the Settings app
2. Tap General
3. Tap About
4. Scroll down to Serial Number

You can tap and hold the serial number to copy it to your clipboard — useful when filling out forms or contacting Apple Support online.

This method works on all iPhone models running any modern version of iOS.

Method 2: Check the Physical Device

If your iPhone won't turn on, is locked, or you're inspecting a device before buying it secondhand, you can find the serial number without accessing the software.

For most modern iPhones, Apple removed the engraved serial number from the device body starting with the iPhone 7 generation. The physical hardware simply doesn't carry it anymore.

Method 3: Check the Original Packaging

The retail box your iPhone came in has the serial number printed on a label — usually on the back or side of the box. This label also includes the model number, storage capacity, and IMEI.

This is particularly useful if you're verifying that a device matches its original packaging, or if you're registering a device before activating it.

Method 4: Find It Through iTunes or Finder

If you need the serial number for a device you can't easily navigate through, connecting to a computer works well.

On a Mac running macOS Catalina or later:

1. Connect your iPhone via USB
2. Open Finder
3. Select your iPhone in the sidebar
4. The serial number appears on the Summary screen

On a Windows PC or older Mac (macOS Mojave or earlier):

1. Connect your iPhone via USB
2. Open iTunes
3. Click the iPhone icon near the top left
4. Click Summary — the serial number is listed there

You can click the serial number in iTunes/Finder to toggle between it and the IMEI.

Method 5: Check Your Apple Account

If you've already registered your device with an Apple ID:

1. Go to appleid.apple.com in a browser
2. Sign in with your Apple ID
3. Scroll to the Devices section
4. Select your iPhone — the serial number is listed there

This method is especially useful if your iPhone is lost, broken, or no longer in your possession.

Method 6: Check Apple's Coverage Page Directly

Apple provides a dedicated lookup tool at checkcoverage.apple.com. If you already know your serial number and want to verify warranty status, enter it there. But if you're trying to find an unknown serial number, you'll need one of the other methods above first.

Why the Method You Use Depends on Your Situation 🔍

The right approach varies significantly depending on your circumstances:

• Device is working normally → Settings > General > About is fastest
• Device is locked or powered off → Packaging or computer (iTunes/Finder) is more reliable
• Device is lost or stolen → Apple ID account lookup is often the only option
• Buying secondhand → Physical box check plus Settings verification together offer the best confirmation
• Older iPhone model → May still have an engraving on the back; newer models won't

There's also a difference between needing the serial number right now for a quick task versus needing to record and store it for future reference. For the latter, copying it from Settings and saving it somewhere secure — like a password manager or a notes app with cloud backup — is a habit worth building.

Serial Number vs. IMEI: A Quick Distinction

These two identifiers are often confused because they appear near each other in Settings.

When dealing with Apple Support or warranty claims, use the serial number. When dealing with carriers, insurance providers, or IMEI blacklist checkers, use the IMEI. Some situations — like a lost device report — may require both.

When the Serial Number Becomes Critical

Most iPhone owners rarely think about their serial number until something goes wrong. The situations where it becomes immediately important include:

• Filing an AppleCare+ or warranty claim
• Checking whether a used iPhone has been reported stolen
• Confirming a device is not refurbished when sold as new
• Processing a trade-in through Apple or a carrier
• Reaching Apple Support for a repair estimate or service history

How you access and store that number — and which method makes sense — depends on where your device is, what condition it's in, and what you're trying to accomplish with the information.