Both reproduce sexually but in different ways. Angiosperms use flowers, while gymnosperms use cones.

There reproduction process are:

1. Angiosperms:

• Flowers produce male (pollen) and female (ovules) gametes.
• Pollination - Fertilization - Seeds inside fruits.
  

2. Gymnosperms:

• Male cones make pollen, female cones carry ovules.
• Fertilization - Naked seeds on cone scales.