A swim spa combines the features of a swimming pool and a hot tub, offering the ability to swim against a current for exercise, along with relaxing spa features. A hot tub, however, is designed primarily for relaxation and hydrotherapy with warm water and jets for massaging. Swim spas typically have more powerful jets to create a current for swimming and may be larger to accommodate swimming strokes, while hot tubs focus on warmth and massage. Feel free to contact Casey’s All-American Pool Company with any questions!