NFL Network Insider Ian Rapoport reported it's a one-year deal for Hawkins. The wideout turned down more lucrative offers elsewhere to join New England.
"It was never really about the money." Hawkins said. "And to be honest, I passed up on deals that were probably double the compensation. But like I said, it was all about winning for me at this point and putting myself in the best position to do so."
Hawkins, who excels as a slot receiver, spent the past three seasons with the Browns. In 2016 he earned 33 receptions for 324 yards and three touchdowns.
If the 31-year-old makes the Patriots' roster, he'll likely work as a reserve from the slot position.