Android: Go to Settings > (Scroll all the way down) About phone or About device. The model name and number will be listed there.
iPhone: Go to Settings > General > About. Look at the Model Name or Model Number.
iPhone: For iPhone 8 and later, the model number is located inside the SIM tray slot. Remove the tray and look for a number starting with 'A' followed by four digits.
Android: Many Android phones have the model number/IMEI number stamped on the back, search via any free IMEI search online.
Open your phone app and dial *#06# to immediately display your IMEI and Serial Number. You can enter this IMEI on the manufacturer's website (like Apple Support, Samsung NZ) to identify the exact model.
If none of these methods work for you, you can bring your device in-store for an inspection and one of our friendly staff members can help identify your model.