Check the phone’s Settings app
Tap About phone or About device
Look for Model number or Device name
Check the back of the phone or SIM tray
Remove the battery if the phone has a removable battery
Check the original box or receipt
Dial `*#06#` to view the IMEI, then use the IMEI to identify the model
Check the manufacturer’s support app or website
Look in the phone’s user manual
Search the model number online