A source told the publication: “Emma and Chord kept quiet about their relationship at first but they really hit it off.
“They spent a lot of time together in Los Angeles and were photographed quite a bit just a couple of months ago.
“But things just haven’t worked out between them and they are both now single again.”
The reports also claim that Watson, 28, and the Glee star have unfollowed each other on Instagram.
Standard Online have contacted representatives for Watson for comment.
Chord starred in hit teen show Glee as Sam Evans from 2010 to 2015 and is also a musician.
Watson was previously dating William Knight, a tech entrepreneur, before they split last year.