One good place
to start.

1. Open Settings.
2. Choose General, then About.
3. Scroll to Serial Number or IMEI. Touch and hold to copy.

An iPad has an IMEI only when it supports cellular service.

1. Open Settings.
2. Choose About phone or About tablet.
3. Find the model, serial number, and IMEI if available.

Older models may put details under Status. Wi-Fi-only devices do not need an IMEI.

1. On the watch, open Settings.
2. Choose General, then About.
3. Scroll to Serial Number or IMEI.

You can also use iPhone Watch app → My Watch → General → About. IMEI appears only on GPS + Cellular watches.

1. On the watch, open Settings.
2. Choose About watch, About device, or About band.
3. Find Serial number, Model number, and IMEI if available.

Menu names vary. Bluetooth-only watches have no IMEI.

1. Open the Apple menu in the corner of the screen.
2. Choose About This Mac.
3. Copy the model name and serial number shown.

If the Mac does not turn on, check the underside or original barcode packaging. If its logic board was replaced, the printed serial may be outdated.

1. For the model and specifications, open Settings → System → About.
2. For a serial number, check the manufacturer label underneath or on the back.
3. Dell calls the identifier a Service Tag; manufacturer support apps can also show it.

Do not use the Windows Device ID or Product ID as a hardware serial number. Windows About does not reliably show serial numbers on all brands.

1. Open Settings → System → System Software.
2. Select Console Information.
3. Find Serial Number.

The serial and model number can also be found at the bottom when the console is upright; the base may cover the label. Other PlayStation models differ.

1. From the HOME menu, open System Settings.
2. Choose System, then Serial Information.
3. The console serial appears at the top.

Standard/Lite physical sticker is on the bottom. OLED and Switch 2 stickers are under the adjustable stand.

1. Look for a label marked Model, Serial, S/N, or Service Tag on the back or underside.
2. Check original packaging if the label is missing.
3. If it is unreadable, send a clear photo and describe the device.

Locations vary by manufacturer. Do not ask users to open a case or remove a battery for this form. This is practical UI guidance rather than a universal manufacturer claim.