Step 1: You can dial *#06# on your phone to get your IMEI number. Also, you'll get it by going to Settings>About Device>Status.
Step 2: Once you get the IMEI, go to imei.****, input the number on the dialog box and hit Check
Step 3. The system will automatically phone's information. If it shows something else than what your phone is saying, it is likely to be a fake brand.
Verify Counterfeit or Original for iPhone
The same way you have checked your phone's originality in android, the same way you can do for iPhones.
Step 1: Find your device's serial number either on your SIM card slot or by going to Settings>General>About
Step 2: Once you get it, go to checkcoverage.apple.***
Step 3: You'll be asked to enter your serial number and verify code. Now hit Continue. It'll show 'invalid serial number' if the handset is fake.
Step 1: Dial ##786# on your phone
Step 2: Click on View option.
Step 3: View option will take you to 'Reconditioned Status'
Step 4: If it shows Yes that means your phone is refurbished otherwise it'll show No.
TRY YOURSELF!