Find out which iPad model you have.
Identify your iPad model - Apple Support
Which iPad do I have?
Find the software version on your iPhone, iPad, or iPod - Apple Support
Identify your iMac model - Apple Support
Identify your iPad model - Apple Support
How to check which iPad model you have - Android Authority
Two-factor authentication for Apple ID - Apple Support
Identify your iMac model - Apple Support
Identify your iPad model - Apple Support (PH)
iPad Generations and Models: Which Tablet Do I Have?
How to Identify Your iPad Model and Generation (2 Ways)