Garmin fenix 5 - Jamie Foxx - Project Power
Looking at the images it does look like the Garmin Fenix 5, in Slate Gray with Black Band, ref. number 010-01688-00.
The watch has a dark steel case, rubber strap and a large round digital screen. The Garmin Fenix is a multisport GPS watch with wrist-based heart rate, advanced fitness features.
Note that the watch comes in different sizes and different color combinations.
Complete the look
Jamie Foxx wears Randolph Engineering Intruder sunglasses in the same film.
And Joseph Gordon-Levitt wears a Casio B650WD watch in the same film.