Identify your iPhone model - Apple Support (SA)

Use Check In on iPhone to let your friends know you've arrived - Apple Support

How Long Does Apple Support Older iPhones For With Software Updates?

iPhone 8 - Technical Specifications

About privacy and Location Services in iOS, iPadOS, and watchOS - Apple Support

Identify your iPhone model - Apple Support

Find your Mac model name and serial number - Apple Support

Set up Find My - Apple Support (PH)

Find the model number of your iPhone, iPad, or iPod touch - Apple Support

How long does Apple support older iPhone models? : r/apple