While comprehensive insurance and full coverage insurance may sound like the same thing using two different adjectives, sadly, they are not.
While comprehensive insurance only covers damage caused by negative incidents outside a collision with another vehicle and collision coverage does cover collisions with another vehicle, full coverage insurance combines comprehensive and collision coverage into one insurance type that covers both.
In fact, your insurance company may offer full-service coverage at a cheaper rate than it would cost to buy both collision and comprehensive coverage individually.