How to Check What iPhone You Have: A Complete Guide

Not sure which iPhone model is sitting in your pocket? You're not alone. With Apple releasing new models every year — and older devices still in active use — it's genuinely easy to lose track. Whether you're checking compatibility for a new app, preparing to sell, or troubleshooting a software issue, knowing your exact model matters.

Here's every reliable way to find out.

Check Directly on the iPhone Itself

The fastest method requires no extra tools — just your device.

Using Settings:

1. Open the Settings app
2. Tap General
3. Tap About
4. Look for the Model Name field — this shows a plain-English label like iPhone 14 Pro or iPhone SE (3rd generation)

Directly below that, you'll also see a Model Number. This alphanumeric code (starting with M, F, or LL) gets more specific — it identifies the exact hardware variant, including regional differences and whether the unit was sold, refurbished, or distributed as a replacement.

Model Name vs. Model Number — what's the difference?

For most everyday purposes — software updates, app compatibility, selling the device — the Model Name is sufficient.

Check the Physical Device (No Software Required) 📱

If the phone won't turn on, or you're examining a device before purchasing it, the physical hardware itself carries identifying information.

On the back of the device:

Older iPhones (iPhone 6s through iPhone 11, depending on model) have the model number engraved in small print near the bottom of the back panel. It begins with an A followed by four digits — for example, A2111.

This A-number is the internal model identifier. Apple maintains a full reference list matching A-numbers to product names, which is searchable on Apple's support pages.

On the SIM tray:

Some models also carry the model number on the SIM card tray itself. This is less common but worth checking if back text has worn down.

Newer models with no back text:

iPhone 12 and later removed back-panel model text in many regions. For these, Settings or iTunes/Finder is the most reliable path.

Use iTunes or Finder on a Computer

If the phone screen is damaged or inaccessible:

1. Connect the iPhone to a Mac or PC with a USB cable
2. On Mac (macOS Catalina or later): Open Finder, select the device in the sidebar
3. On Mac (older macOS) or Windows: Open iTunes, click the device icon
4. The summary screen displays the iPhone model name

This method is particularly useful for locked or damaged phones — you get the model information without needing to navigate the screen.

Check Your Apple ID or Purchase Records

Through Apple's website:

1. Go to appleid.apple.com and sign in
2. Scroll to the Devices section
3. Each device linked to your Apple ID is listed by model name

This works even if you don't have the physical device in front of you — useful for tracking multiple devices or checking a device that's been lost or reset.

Through your original purchase receipt:

If you bought directly from Apple or a carrier, your email receipt includes the full model name and sometimes the model number. Retail receipts from Apple Stores typically list the model name clearly.

What the Model Tells You — and Why It Matters

Knowing the model name is the starting point. What you do with that information depends heavily on your situation.

Software support is one key variable. Apple typically supports iPhones for five to six years with major iOS updates, but that timeline differs by model. An iPhone XR and an iPhone 15 are both "supported" devices right now, but they sit at very different points in that lifecycle — with meaningfully different futures ahead of them in terms of upcoming feature compatibility.

Hardware capabilities vary significantly across generations. Features like ProMotion displays (adaptive 120Hz refresh), LiDAR scanners, MagSafe charging, USB-C vs Lightning, satellite connectivity, and Action buttons are model-specific — not every iPhone has them, and knowing your exact model clarifies which features you actually have access to.

Chip generation is another dimension. iPhones use Apple Silicon chips (A-series), and each generation brings improvements to CPU performance, GPU output, and the Neural Engine that powers on-device AI tasks. An iPhone 13 runs an A15 Bionic; an iPhone 15 Pro runs an A17 Pro. The gap between those chips is real and affects things like video processing, gaming performance, and machine learning workloads.

Storage and RAM aren't directly visible from the model name alone — but once you know your model, the About screen in Settings also shows your storage capacity, and Apple's technical specifications pages document the RAM configuration for each device.

The A-Number Reference Approach 🔍

If you have an A-number from the back of the device and want to decode it:

• Search Apple's support article "Identify your iPhone model"
• This official resource maps every A-number to its corresponding product name, chip, display size, and release year

This is particularly useful when buying secondhand — the A-number on the physical device can't be easily altered, making it a trustworthy identifier even if the box or receipts are missing.

When the Model Number Isn't Enough

There's a layer beneath the model name worth knowing: regional variants. The same "iPhone 14" sold in the US, Europe, and Japan may have slightly different A-numbers due to differences in 5G band support, camera shutter sound behavior (legally required in Japan), or SIM tray configuration (physical SIM vs. eSIM-only).

For international travelers or anyone using a device purchased abroad, the regional variant can affect carrier compatibility and network band performance — even if the model name looks identical.

Your specific use case — which carrier you're on, which countries you travel to, whether you're replacing a SIM or using eSIM — determines whether the regional variant detail is relevant to you, or a non-issue entirely.