Complications in Nike Apple Watch

Ignore this... This forum doesn't seem to work on the iPhone browser. White text on white and even the iPhone paste button breaks... and now I can't find anywhere to delete the question trying from a PC. So -edit-

The initial question was about why I'd want a permanent complication with my Nike watch...

Apparently 'complication' is a thing. An unfortunate advertising word when you don't explain to prospective new watch users reading the specs that it is... uh... a good thing.