Leather is leather, regardless of its form; so whether it be a bracelet or a wallet or shoes, you should take care of it! (At least in my opinion.)
Then again, I’m lazy. So no, you don’t “have” to per se. As for care, Obenauf’s LP is a popular go-to, and I know many that would agree, haha.
http://www.corterleather.com/leather-care/