You can find your iPhone’s total storage capacity (in GB) right on the device in a couple of quick ways. Direct on the iPhone

• Open Settings.
• Tap General.
• Tap About (or the device name area on newer iOS).
• Look for Capacity. This number shows the total storage your iPhone has, in GB, alongside Used and Available storage on some iOS versions.

If you want a quick check without going through About

• Open Settings.
• Tap General.
• Tap iPhone Storage (or [Device] Storage on some versions). The top line typically shows the total capacity and how much space is free.

Notes

• The capacity you see is the advertised total plus some space reserved by the system or formatting, so the exact numbers may not align perfectly with the label on the box or default marketing specs for the model. If you’re unsure which model you have, you can also check the model name in Settings > General > About, or look up your model number (also shown there) to confirm its official storage options.