Uwakah, a Daly City resident, was shot at about 3:30 p.m. Sunday near Mendell Street and Hudson Avenue in the city's Bayview District.
Uwakah had agreed to meet with the suspect to sell him the gaming console, but instead the suspect stole it and shot Uwakah while he was still in his car, according to police.
He was taken to San Francisco General Hospital and pronounced dead a short time later, police spokesman Officer Albie Esparza said.
The suspect, described only as a man in his 20s or 30s, had not been found as of this morning, Esparza said.
Anyone with information about the case is encouraged to call the Police Department's homicide detail at (415) 553-1145, the anonymous tip line at (415) 575-4444 or send a tip by text message to TIP411 with "SFPD" in the message.