The quarterback lost his place in the 49ers' starting lineup in the second half of the season after sustaining a concussion, allowing Colin Kaepernick to impress in his absence.
Despite spending the last nine games as a spectator, the 28-year-old told Yahoo! Sports: "I'm so happy, man. This is so surreal. It's such a crazy time, such a crazy moment.
"Obviously, it's been a unique year, and it would be great to be in there. But I couldn't be happier. This is a great group of guys, and they're all Super Bowl-bound. I'm just so happy for all of them."
Smith has been linked to trades to a number of teams during the off-season, including the Jacksonville Jaguars and the Arizona Cardinals.
The 49ers sealed their place in this year's Super Bowl by beating the Atlanta Falcons 28-24 yesterday.