Buoyancy aids (also known as PFDs - Personal Flotation Devices) assist with buoyancy, you must be a competent swimmer as they only aid you in the water.
Lifejackets are tested to a standard which requires that the lifejacket turns an unconscious casualty over to allow them to breathe.
ALTO, Aero-Pro, WING & FOIL are Buoyancy Aids.
Deckvest VITO, Deckvest 6D, Deckvest LITE, Deckvest LITE+, Deckvest CENTO are Lifejackets.
