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Review Overview



The Smooth 9.45 ST treadmill is equipped with a 3.0 CHP motor, a powerful yet very quiet motor. Motion control is nice or hated, but the adjustable suspension, extra-large ride platform, and incredibly strong feel give each person something they like. Compared to the spacious 20 “x 60” treadmill, which offers the user a comfortable workout experience. The 9.45 ST has a maximum user weight of 400 lbs.


Treadmill Reviews:

Smooth Fitness is a major player in the fitness equipment industry. Manufactures and sells treadmills and elliptical trainers. One of their treadmills is the Smooth 9.45ST treadmill. Smooth Fitness refers to this SmoothFitness 9.45ST treadmill as a regular treadmill for your home. Overall, we would say the Smooth 9.45ST treadmill offers a lot of premium features and isn’t particularly lacking in any area, but you pay for it. The price of $2,000. Is actually worth it.



The Smooth Fitness 9.45ST treadmill offers several advanced features that make it an attractive choice if you are looking for a quality treadmill. The Smooth 9.45 ST treadmill is a solid, well-built treadmill.

The Smooth 9.45 ST treadmill is equipped with a 3.0 CHP motor, a powerful yet very quiet motor. Motion control is nice or hated, but the adjustable suspension, extra-large ride platform, and incredibly strong feel give each person something they like. Compared to the spacious 20 “x 60” treadmill, which offers the user a comfortable workout experience. The 9.45 ST has a maximum user weight of 400 lbs. so you know it’s a very strong treadmill. The smooth 9.45 has an 81 “x 35” track. 

One of its main features is the SmoothFitness Hydra suspension system. This advanced suspension system features variable suspension, allowing you to adjust the shock absorption to perfectly suit your individual driving style. 

By adjusting the amount of suspension, you can make your workout more enjoyable, efficient, and effective. Another unique feature of Smooth 9.45ST Treadmill is the Quick Change motion control. This innovative technology gives you an edge while allowing you to control the speed and movement of the Smooth 9.45ST treadmill with a simple wave of your hand. Wondering if you should get one? Let’s check the features below so you can make the right decision.SMOOTH FITNESS 9.45ST TREADMILL

  • Motor: 3.0 Commercial Horsepower
  • Speed: 0.5 – 11.2 mph
  • Incline Levels: 1 – 15
  •   Credits:

    Folding: No

  • Roller Size: 2.5″
  • Workout programs: 6 built-in fitness programs
  • Foot Print: 81″ x 35″ (L x W)
  • Running Surface: 20″ x 60″ (L x W)
  • Dimensions: 84″ x 37″  x 16″ (L x W x H)
  • Unit Weight: 304 lbs
  • Max User Weight: 400 lbs
  • Warranty for Frame: Lifetime
  • Warranty for Motor: Lifetime
  • Warranty for Parts: Lifetime
  • Warranty for Labor: 2 years

Why is SMOOTHFITNESS 9.45ST TREADMILL your perfect workout partner?

The main attraction of this model is the running surface, which is above average. We had a heavier user who tried 9.45, and it proved generously comfortable for him. This belt is 5 inches longer than the 9.35 and is the difference between heavier and taller users.

The engine is as powerful as the 9.35. However, we found it very exciting to stay as quiet as the night. A big plus for this powerful motor is the quiet operation. This is one of the reasons we prefer this model. Then all the other benefits emerged. Like the 9.35, this model is equipped with a motion control system. It is at least convenient to change speed by shaking. No touch, no pressing needed; just swipe your hand over the sensor and increase or decrease the program speed as you wish. This is an inspired feature, which we honestly underestimated at first, but after our first workout, it turned out to be a winner.

The console on this treadmill displays common information: calories, time, speed, incline, and heart rate. There are conversion settings that allow you to switch between metric and English information. To scroll between these two options, you need to press Start. Smooth 9.45 ST Treadmill contains six different programs and up to 9 user profiles. Programs include Manual, Killer Hills, Interval Speed, Weight Loss Program, Self-Learning / Competition, and Heart Rate Control Program.

At Killer Hills, you can choose up to 12 exercise levels. You can also set the time for around 96 minutes. The weight loss programs are optimized for maximum results when it comes to burning calories. Again, choose from 12 levels. These programs alternate different speed and incline values for an effective workout. As you increase the level, you increase the intensity and therefore increase the performance. 

The heart rate control program is structured in 3 parts, warm-up, the main program, and cool down. You can adjust your target maximum heart rate. The structure of this program is optimal for cardio workouts. You will lose weight in a way that fits your body and will keep you unharmed

A chest strap with heart rate control is a major highlight. You wear the chest strap, and the console adjusts your heart rate to your settings. Thanks to this feature, our heart rate monitoring programs were much more enjoyable. Not only do you control heart rhythm, but you also have suppressors. You can adjust the suspension system to your needs according to your personal riding style. We have come across many other treadmills that offer a less pleasant experience.

Another feature that convinced us that this model must be bought was the weight, age, and height. Entering personal data is equivalent to obtaining accurate feedback. We are happy to receive accurate feedback information, especially during weight loss programs. It is the only way to maintain a consistent weight loss plan.

There aren’t many drawbacks to this treadmill, and it certainly weighs a lot less than the pros. First, it will take you some time to assemble this unit, so be careful to save about 2-3 hours. And second, you don’t have to put it together, which is a bit obvious for powerful treadmills.

In addition, a warranty package is available. The life of the chassis, motor and components + electronics and two years for housework can only be guaranteed by the life of this unit.

Technological features

  • Hydra Suspension Cushioning System
  • SmoothSound Audio System
  • Quick Change Speed Control
  • 9 Different User Profiles
  • Oversized 5 Window LED Display
  • Wireless Heart Rate Control
  • Hands-Free Speed Control System
  • Whisper Weave Tread belt offering quiet operation

Is the SMOOTH FITNESS 9.45ST TREADMILL good enough for your cardio?

Smooth tried to offer its riders something else. You simply have to wave your hand to change the speed of this model. Sounds strange, right? Arm motion sensors let you tell which one needs to go faster or that the other hand needs to go slower. For some runners, it might be tempting not to reach for the console to change speeds, but this feature might seem a bit unusual for others. Unfortunately, there aren’t many other accessories on this model. It doesn’t even fold to save space. If you prefer decorative bells and whistles, it may not be a good treadmill for you.

The adjustable suspension system is one of the most important benefits of this treadmill. We have met users who think this suspension is hard to understand disadvantage. It is of high quality and does not cause any problems yet.

Many Smooth treadmill users have also noticed how quiet the motors on these machines are, and we agree. Not only does the motor whispers silently, but also the flywheel, the part where the treadmill passes over the roller.

Apart from the delays in the deliveries that Smooth fitness has been known for in the past, it would be hard to look for weakness in such a tailor-made machine. This is one of the best treadmills you can buy for under $2,500.

SMOOTHFITNESS 9.45ST TREADMILL: Wow factors vs. Nah factors

Wow factors

  • Hands-Free Speed Control System
  • Hydra-Suspension Adjustable Cushioning
  • Commercial Grade Deck
  • Industrial Strength Frame
  • 6 Preset Workout Programs
  • Oversized 5 Window LED Display
  • Whisper Weave Low Friction Belt
  • Safety Key and Lanyard
  • Wireless Heart-Rate Control
  • 9 Different User Profiles
  • Deluxe Music System
  • iPod / MP3 Connectivity

Nah factors

  • No iPod docking station
  • You will not be able to fold it 
  • No Television

Decision: Should you invest in a SMOOTHFITNESS 9.45ST TREADMILL?

If you are looking for a quality treadmill with a powerful motor and ample operating space, this machine is ideal for you. It provides one of the best values you’ll find in a treadmill for $2,300. This treadmill is especially useful for hardcore runners, as the suspension can be adjusted to suit all running methods. We still believe the Smooth 9.45ST will win over many other Smooth treadmill models. And if you decide to buy it without a TV console, you will get a reasonable price. The 9.45 ST model is a model that we highly recommend. This is a machine made for serious and even heavier runners. It is robust, powerful, and adjustable and can be used by up to 9 users.

Disclaimer: This model is discontinued by the company.

Fatima Ahmed

Fatima Ahmed

Fatima Ahmed is a Nutritionist currently working online and helping people to improve their health and lifestyle. Her goal is to bust the nutrition myths that have been living since ages about nutrition and certain foods. She wants people to get robust knowledge about food and health as nutrition sciences have changed over years.

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