You’ve finally decided to turn your backyard into a luxurious retreat. But now you’re stuck choosing between water features—should you get a swim spa or a hot tub? While both offer plenty of relaxation and therapeutic benefits, they serve different purposes. Hot tubs prioritize relaxation, while swim spas allow for exercise and hydrotherapy. In this blog, we’ll break down these key differences to help you decide which is best for your lifestyle.
What Is a Hot Tub vs. a Swim Spa?
A hot tub is a self-contained spa designed for relaxation, hydrotherapy, and socialization. It features heated water, built-in seats, and powerful jets to soothe muscles and joints. A swim spa, on the other hand, is a hybrid between a hot tub and a pool. Hot tubs are typically square or round, while swim spas are elongated. Like hot tubs, swim spas often include built-in seating and hydrotherapy jets. But unlike hot tubs, a swim spa generates a current for swimming in place, allowing for both exercise and hydrotherapy.
What to Consider When Choosing Between a Hot Tub and a Swim Spa
1. Size & Design
Hot Tubs are compact and designed for relaxation. They typically hold 2 to 8 people and feature built-in seats with hydrotherapy jets. Swim Spas are larger than hot tubs and provide a current for swimming and exercise. They look like a miniature pool, but often include seating and jet options as well. While hot tubs are designed for simply sitting and relaxing, swim spas are designed for both exercise and relaxation.
2. Purpose & Functionality
Hot tubs are primarily used for:
- Relaxation: The warm water and jets provide a calming, spa-like experience.
- Hydrotherapy: The combination of heat, buoyancy, and massage helps relieve sore muscles, joint pain, and stress.
- Socialization: Many hot tubs are designed for multiple users, making them great for social gatherings.
Swim spas offer a mix of fitness and relaxation benefits, such as:
- Exercise & Swimming: The adjustable swim current allows users to swim in place, like a treadmill for swimming.
- Low-Impact Workouts: Great for water aerobics, resistance training, rehabilitation therapy, and other low-impact exercises.
- Dual Functionality: Many models allow you to switch between warm and cool water zones.
3. Temperature Control
Hot tubs typically operate at a consistent temperature of around 100-104°F. They’re designed to stay warm year-round, making them ideal for winter use in northern Arizona. Swim spas, however, feature adjustable temperature zones. The swimming area can stay at 80-90°F while the hydrotherapy section can be set at 100°F+. Swim spas provide flexibility for both warm and cool water therapy.
4. Space Requirements
Hot tubs are ideal for backyards with limited space due to their small size. They can be placed on a reinforced deck, concrete patio, or crushed gravel. Swim spas are larger than hot tubs, so they require more space. They’re typically installed above ground, in-ground, or partially recessed.
5. Cost & Maintenance
Hot tubs are typically more affordable upfront, with prices ranging from $3,000 to $15,000. With lower water and energy usage, hot tubs are also cheaper to maintain than swim spas. They require regular water treatment, filter changes, and the occasional deep cleaning to continue running smoothly.
Swim spas have a higher initial cost, typically around $10,000 to $30,000. They offer year-round functionality, eliminating the need for a separate pool. However, swim spas require more water maintenance than hot tubs because they have more water and moving parts.
Which One Is Right for You?
You should choose a hot tub if:
- You prioritize relaxation, stress relief, and hydrotherapy.
- You have limited space and want an easy-to-maintain spa.
- You prefer a budget-friendly option with lower maintenance costs.
You should choose a swim spa if:
- You want a multipurpose spa for swimming, exercise, and relaxation.
- You have enough space to accommodate a larger unit.
- You’re willing to invest in a long-term wellness solution.
No matter which option you choose, both swim spas and hot tubs offer year-round benefits for your health and well-being.
Swim Spa & Hot Tub Showroom in Tucson
Still unsure which is best for you? The spa experts at Sunset Spas can help. We offer a variety of high quality swim spas and hot tubs that will transform your backyard into your personal oasis. We’ll help you choose the best model for your needs. Visit our showroom in Tucson or find a location near you to explore our selection.
Images used under creative commons license – commercial use (3/11/2025). Photo by Jamie Fenn on Unsplash
