Hello and welcome to Apple Support Communities whittenc27,
I see that you're not seeing the latest update for iOS 11 on your iPhone 6s. I know how exciting it is to be able to update to the latest software and start using the new features on your iPhone and I'd be happy to help.
Let's start by having you restart the iPhone and then check to see if the update is showing:
I see that you're not seeing the latest update for iOS 11 on your iPhone 6s. I know how exciting it is to be able to update to the latest software and start using the new features on your iPhone and I'd be happy to help.
Let's start by having you restart the iPhone and then check to see if the update is showing:
Restart your iPhone, iPad, or iPod touch
If after restarting the update is still not showing, you have another option to update using iTunes. This article will guide you through updating your iPhone using iTunes:
Update the iOS on your iPhone, iPad, or iPod touch
Thank you for using Apple Support Communities.
Have a great day!