Hey there terrell230,
That is a fantastic question that you have in regards to the Nike Run Club app's compatibility with the various Apple Watches. We are here to help answer this question for you.
The Nike Run Club app is compatible with both the Series 5 Apple Watch and the Series 5 Nike Watch. This application is compatible with any Apple Watch that is running watchOS 5.0 or later.
To find out more details about the Nike Run Club app, check out this resource: Nike Run Club
Hope this information helps.
Take care!