Smith suited up in five games for the Dolphins this year, working mainly in a special-teams role before being waived and landing with the practice squad. With T.J. McDonald (ankle) listed as doubtful, Smith will provide depth to the team's secondary.
Smith was waived by the Dolphins on Monday, Joe Schad of The Palm Beach Post reports.
Smith signed with the Dolphins earlier in October after having been waived, and will now once again be cut by the team. The depth safety will be free to search for a reserve role elsewhere in the league if he goes unclaimed on waivers.
Smith should serve in a reserve role in the secondary and will likely contribute on special teams as well, taking the place of Chase Allen (foot) on the active roster. He has appeared in four games for the Dolphins this season prior to being waived just two days ago, recording three tackles.
The Dolphins waived Smith on Monday, Matt Maiocco of NBC Sports Bay Area reports.
Smith was promoted to the active roster Sept. 18 but has been a healthy inactive for four straight games. If he clears waivers, he'll likely land on the team's practice squad.
Smith will be promoted to Miami's 53-man roster, Safid Deen of the Sun Sentinel reports.
Smith will occupy the open roster spot created by Josh Sitton's (shoulder) placement on injured reserve. The second-year safety played a rotational role in six games for the Dolphins last season, and will serve as a depth safety and special teams option going forward. Miami can make an addition to its practice squad after promoting Smith.