Pretty much all locks are re-keyable. Kwikset’s “smart key” system is different only in that you don’t have to buy new pins and take the lock apart to do it.
(I’m switching from Kwikset to commercial-grade Schlage because I wanted to upgrade the durability of my interior locks and wanted the exterior ones to match, so I’m about to find out how much more difficult normal re-keying is. Wish me luck!)