Cosmonaut: Pavel R. Popovich [1]
Backup: Vladimir M. Komarov
Launch:
    Date: 12 August 1962
    Time: 08:02 UTC
Landing:
    Location: Karaganda region
    Date: 15 August 1962
    Time: 07:09 UTC
Orbits: 48
Duration: 2 days, 23 hours, 7 minutes
Call Sign: Berkut (Golden Eagle)

This was the second launch of what was the first double spaceflight. Vostok 3 had been launched the day before with Andrian G. Nikolayev aboard. The two craft passed within 6.5 km of each other. Vostok 3 and Vostok 4 landed within 15 minutes and 193 km of each other.