No. Only iPhone 5s and later.
Look here for specifics: iOS 11 is compatible with these devices - Apple Support
No. Only iPhone 5s and later.
Look here for specifics: iOS 11 is compatible with these devices - Apple Support
No. Only iPhone 5s and later.
Look here for specifics: iOS 11 is compatible with these devices - Apple Support
iOS 11 requires an iPhone 5S or newer.
The simple answer is NO. Only iPhones newer than yours can be updated to IOS 11.
Is the iOS 11 update available for an iPhone 5?