Make sure you are respectful of other users' profile pictures and do not misuse images. Instagram users have the option to limit the visibility of their profile picture, and downloading or enlarging a profile picture without the user's consent could be considered a violation of privacy.
This guide shows how to enlarge Instagram profile photos on Android phones using third-party apps or online tools. However, please note that Instagram may update its privacy policies and features, and it is advisable to follow the latest guidelines and respect the privacy of other users.
Please note that you should be careful when using third-party apps and ensure that the app is reliable and does not request sensitive data.