iPhone (iOS) · System Info
Find Your Model, Serial, and Firmware Details
The About screen under General is the definitive source for an iPhone's exact model name/number, serial number, IMEI/MEID, modem firmware version, and other identifiers often needed for support, insurance, or trade-in.
How to open System Diagnostics Info
- Open Settings → General → About.
- Scroll to find Serial Number, IMEI, or Model Number as needed.
- Tap and hold a field like Serial Number to copy it directly.
- Reference Modem Firmware if a carrier or support agent specifically asks for it.
What you should know
- Shows the device name, iOS version, model name and number, and serial number.
- Lists IMEI (or MEID) and eSIM details needed for carrier activation or support calls.
- Displays modem firmware version, useful for advanced cellular troubleshooting.
- Includes total storage capacity and available storage at a glance.
Why it matters
Almost every official interaction about your iPhone — a warranty claim, a trade-in appraisal, a carrier activation, an insurance claim — starts with one of the identifiers on this screen, so knowing exactly where to find them quickly saves real time. It's also the fastest way to confirm you have the exact model and storage capacity you think you have.
Best practices
- Tap and hold any field like Serial Number or IMEI to copy it instantly rather than retyping it manually.
- Screenshot or note your serial number somewhere safe before sending a device in for repair or trade-in.
- Double check your exact Model Number here if you need to verify compatibility with an accessory or carrier.
Common problems and fixes
- A support agent or carrier asks for the IMEI but you can't find the physical SIM tray label
- Skip the tray entirely and get the IMEI directly from Settings → General → About, where it's always accurate and easy to copy.
- Trade-in or insurance provider says the serial number doesn't match
- Re-copy the serial number directly from About rather than typing it manually, since a single mistyped character is a common cause of mismatches.
Tips and tricks
- The About screen's storage figure is the true usable capacity, which is always somewhat less than the marketed capacity due to system reserves.
Frequently asked questions
Where can I find my iPhone's IMEI without going into Settings?
It's also printed on the original box and etched on the SIM tray of some models, but the About screen in Settings is the most reliable and always-current source.
Does the Model Number here tell me if my iPhone is unlocked?
Not directly — model numbers can hint at regional variants, but carrier lock status is best confirmed through your carrier or Apple's official IMEI check tools.
Related settings
- General & AboutThe About screen lists identifying and technical details about your iPhone — name, iOS version, model and serial numbers, storage capacity, and carrier information — that support staff and other apps often need.
- CarrierThe Carrier entry (and the Carrier section under General → About) shows which cellular carrier your SIM or eSIM is currently registered with, along with the installed Carrier Settings update version.
- Software UpdateSoftware Update keeps iOS current with the latest security fixes, features, and app compatibility. You can update wirelessly, overnight while charging, or via a computer.
More System Info guides for iPhone (iOS)
- Date & TimeDate & Time settings normally keep your iPhone's clock accurate automatically using your current location and cellular network, but they can also be set manually and switched between 12-hour and 24-hour display.
- Legal & RegulatoryLegal & Regulatory, tucked under General, lists the legal notices, open-source license acknowledgments, and regulatory certification numbers (like FCC ID) tied to your specific iPhone model.
- Model, Serial Number & IMEISettings > General > About lists the exact model name and number, serial number, and IMEI/MEID identifiers needed for warranty checks, carrier activation, and insurance claims.
- Certificate Trust SettingsCertificate Trust Settings lets users enable or disable full trust for root certificates that were manually installed via a configuration profile, separate from Apple's built-in trusted certificate list.
- VPN & Device ManagementThis screen lists any VPN configuration profiles and shows whether the iPhone is enrolled in a Mobile Device Management (MDM) system, typically used by employers or schools to manage company- or school-owned devices.
- iPhone Device NameThe device name is what appears to others over AirDrop, Bluetooth pairing, and on the local Wi-Fi network, and can be personalized separately from the Apple ID name.