"Harry's song...I heard...and I'll be honest with you...It's not my sort of music, so it's not something I'd listen to, but I think he did a great job of doing what he wanted to do," Payne told Music Choice.
"That's the way I'd put it best, I think."
Payne added: "I think the funny thing is he'd say the same thing about me. He doesn't really listen to hip-hop music. My song is more brazy, and his song's more of a different era."
"Sign of the Times" is one of 10 tracks on Styles' self-titled album, which was made available to fans May 12 via his own label, Erskine Records.
Payne said he also listened to the rest of the solo singles of fellow 1D members, but he specifically praised Niall Horan's "Slow Hands" and "This Town."
"I love it that Niall has gone down this singer-songwriter route, which is really cool," Payne said.