Click the Apple Menu > System Settings > General > About .
For iPhone and iPad, Apple can ship you a replacement device before you even send your broken one back. What is NOT covered? does applecare cover cracked screens
AppleCare+ is designed for "accidental damage from handling." This includes: Click the Apple Menu > System Settings > General > About
Go to Settings > General > About > Coverage . you can check quickly:
If you aren't sure if you have AppleCare+, you can check quickly: