Yin Yoga is a slow-paced style of yoga as exercise, incorporating principles of traditional Chinese medicine, with asanas (postures) that are held for longer periods of time than in other styles.

Vinyasa is a style of yoga where poses are strung together to form one fluid sequence of movement.
The variety of movements in a Vinyasa class means you will often be working through the whole body throughout a class, and expand your range of motion by moving in ways you normally would not. This will help you avoid injuries in the future that could happen if you are always moving in the same way. consistent Vinyasa practice can help you build muscle throughout the whole body.
In Vinyasa, you often work all parts of your body, which means you will build balanced and functional strength.