Sunny SF-T4400 Folding Treadmill | Shock Absorption and Incline

The Sunny SF-T4400 Folding Treadmill from Sunny Health and Fitness is a simple, budget-friendly treadmill ideal for someone looking for a walking or jogging treadmill. While this entry-level treadmill is simple, it uses various fitness features that aren’t always available on budget treadmills in this price range.

The SF-T4400 comes with three incline options, which go from 0% to 2% and 4.37%, so you can add resistance to your workout sessions and make them even more helpful. But it lacks the functionality to shift through its various inclination modes dynamically. So, you need to get off the treadmill and set its incline level manually; then, you can resume your workout with an incline.

The large and easy-to-read LCD screen displays your workout information regarding speed, distance covered, the time elapsed, calories burned, and heart rate. With the backlit screen, you can stay on track with your workout, but the display is covered up if you use the media shelf on the console.

The SF-T4400 treadmill offers nine preset workout programs and a manual mode. In this area, the SF-T4400 excels from its competitors. Furthermore, these programs are straightforward to understand and use for the user’s convenience.

Learn more in my complete review below!

Sunny SF-T4400 Folding Treadmill
Sunny SF-T4400 Folding Treadmill

Product: Sunny SF-T4400 Folding Treadmill

Price: For a great deal on this treadmill, merely go here to Sunny Health &

Warranty: Frame 1 year / Parts 90 days

My rating: is 8/10

Affiliate Disclosure: As a Sunny Health & Fitness Affiliate Program participant, I earn commissions on purchases made through links in the post. Full disclosure

Details and Specifications

  • Assembled dimensions: 62.2L x 26.8W x 47.3H inches (158L x 68W x 120H cm)
  • Tread belt dimensions: 48.82L x 15.75W inches (124L x 40W  cm)
  • Product weight: 103 lbs (46.7 kg)
  • Supported weight: 220 lbs (100 kg)
  • Motor: 2.20 HP
  • Incline: Manual, three levels, 0%, 2%, 4. 37%
  • Speed levels: 10 (0.5-10 MPH).
  • Training programs: 9 preset, one manual mode
  • Pulse sensors: Built-in handlebars
  • Performance console: Speed, Distance, Time, Calories Burned, and Pulse
  • Warranty: Frame 1 year / Parts 90 days

SF-T4400 Frame Construction

This treadmill features a steel frame, powder-coated with anti-corrosive paint. There are, however, several hard plastic parts on it, such as the joints of the primary arms of the machine, the casing of the motor, the treadmill’s dashboard, and the incline feet.

Sunny SF-T4400 Folding Treadmill

The frame is foldable, with a soft-drop hydraulic folding system. The deck lifts to the point where it almost touches the dashboard to occupy less space.

This model has a slightly smaller footprint than other treadmills in this price range. It takes about 27″ W x 62″ L, which makes it an ideal choice for apartment use or for someone who doesn’t have too much space available.

The frame bases come with leveling rubber feet to supply maximum stability. In addition, the structure’s rear base (not the deck) is equipped with transport wheels to ease the folded machine’s movement.

Deck and running surface

The deck of this treadmill is a little bit slimmer. Nonetheless, it has a sturdy build, supporting users up to 220 lbs (100 kg), walking and jogging, and running sessions.

The deck has a basic cushioning system, absorbing at least 10% of the impact on your knees and ankles. Therefore, running on this treadmill is better for your joints than running on asphalt or concrete.

The running surface supplied by this treadmill is not the longest available. But at 48.82″L x 15.75″ W, it should accommodate users up to 6′ (182 cm) tall without any problem. Of course, taller users can use this treadmill, but they might find the running surface a little small for their maximum stride.

The tread belt supplied with this treadmill is a heavy-duty, double-layered one designed to resist stretching. In addition, it also has an anti-slip finish to ensure maximum adherence when walking or running.

Although this Sunny treadmill does not supply an automatic incline system that is adjustable from the console during your workout, it does have a manual one. Therefore, it adds quite a bit to the diversity of workout possibilities.

Sunny SF-T4400 Folding Treadmill
Sunny SF-T4400 Folding Treadmill

The treadmill’s incline system consists of two folding feet attached to the rear part of the deck. Each foot features three adjustment holes, providing three manual options for adjusting incline levels (0%, 2%, 4. 37%).

For example, to adjust the deck’s slope, remove the pins in each foot, change the angle to the desired setting, and reinsert the pin into the opposite hole to maintain that particular incline level.

SF-T4400 Drive motor

The Sunny SF-T4400 treadmill is a motorized type. The motor isn’t the most powerful, but it offers 2.20 HP. It’s a motor made to resist prolonged workouts without overheating. It supplies speeds between 0.5 and 10 MPH, just enough for regular exercise.

Since it’s a 2.20 HP motor, its power consumption shouldn’t exceed 1.5 KWHrs. Therefore, if you’re wondering, even if you’re going to use it daily for at least one hour, the addition to your energy bill will still be negligible.

The machine comes with a power cord, not an adapter. It requires a connection to a standard 110v power circuit. In addition, the motor does have an ON / OFF power switch.


Regarding the console of this treadmill, it’s not exactly the most advanced one, but it offers several functions more than a simple one. For example, it can indicate speed, time, calories burned, distance, and heart rate.

The console features speed adjustment digits (+,-), each speed level adding 0.5 MPH to the current speed, up to 10 MPH.

It also offers nine preloaded workout programs, which automatically change the speed of the belt, alternating between different speed levels. In addition, there are direct quick-start keys for some of the programs on the console.

Sunny SF-T4400 Folding Treadmill

It also features a Pause button, which is excellent to have if you want or need to take a short break without completely stopping the treadmill. Last but not least, the console has a safety key feature required by any treadmill.

The dashboard of this Sunny treadmill model is plastic-made, featuring two bottles or accessory holders, one on each side. It’s finished with two simple handlebars, covered with rubber foam padding for a comfortable grip.

The handlebars integrate heart rate pulse sensors and speed, start, and stop control. The dashboard also offers the possibility to fit a phone or tablet onto it, as it comes with a media tray.

SF-T4400 Assembly and Maintenance

This treadmill is one of the most straightforward machines to assemble. Most of it comes already pre-assembled. Therefore, you must add and tighten the two posts, the dashboard on top, and connect the console wires.

As for maintenance, the belt requires lubrication occasionally with a silicone-based lubricant. Besides that, keep the deck and belt clean of any dirt or debris, adjust it if needed, and make sure you don’t spill water on the console.


  • Excellent price/quality ratio;
  • A 2.20 HP motorized treadmill;
  • Speeds between 0.5 MPH and 10 MPH;
  • Low electric consumption;
  • Extremely quiet;

    Sunny SF-T4400 Folding Treadmill
    Sunny SF-T4400 Folding Treadmill
  • Durable, steel frame;
  • Small footprint, great fit for apartment use or small rooms;
  • Foldable deck with low-drop hydraulic mechanism;
  • Three levels of (manual) incline;
  • Handrails with built-in heart rate sensors, start, stop, and speed controls;
  • Accessory and bottle holders;
  • Fitness console with nine preloaded training programs;
  • Low maintenance.


  • The fitness console is not HR chest strap compatible;
  • Not the best choice for users over 6′ tall;
  • It only supports a maximum user weight capacity of 220 lbs.

Sunny SF-T4400 Folding Treadmill Summary

The Sunny Health & Fitness SF-T4400 treadmill is an excellent exercise machine for cardio exercises, a great full-body workout, toning leg muscles, and weight loss. Furthermore, thirty minutes of moderate exercise on this treadmill can help you burn up to 4-500 calories.

Although it’s not a gym-rated treadmill designed for professional runners, it makes a perfect choice for any home user who wants to exercise daily. Moreover, it’s a good treadmill for an affordable price.

I hope you found this article helpful and informative. Would you please speak up if you have anything you’d like to share or any opinions about my website? I look forward to your comments, questions, and the sharing of ideas.

Please remember to consult your physician to determine if you have any medical or physical conditions that could put your health and safety at risk or prevent you from using the equipment properly. In addition, your physician’s advice is essential if you are taking medication that affects your heart rate, blood pressure, or cholesterol level.

8 thoughts on “Sunny SF-T4400 Folding Treadmill | Shock Absorption and Incline”

  1. Hello there! This is an informative review. I sometimes run here and there around my neighborhood. Unfortunately, because it is a cement floor, my running sessions can be shorter than usual. That hard impact can take a toll on you and tire you more quickly. Therefore, I can see the advantage of using a treadmill with shock absorption. Reading through your post, it seems to have a lot of functionality to match the user’s preferences for a training routine. The pricing also doesn’t seem too bad either. Thanks for doing a very detailed review on this.

    • Hi Mike, thanks for your interest in the Sunny SF-T4400 Folding Treadmill. This Sunny treadmill is best for walkers and joggers. If you are a runner I would suggest considering at least a 3.5 HP motor and a 20 x 60-inch deck. I’d be happy to assist in the selection. Most of these runner treadmills have shock absorption of up to 40% of the shock impact.

      Best regards, Robert

  2. Hi! This is an educational review. I once in a while run to a great extent around my area. Sadly, because it is a concrete floor, my running meetings can be more limited than expected. That hard effect can negatively affect you and tire you all the more rapidly. In this way, I can see the benefit of utilizing a treadmill with stun retention. Perusing your post, it appears to have a great deal of usefulness to coordinate with the client’s inclinations for a preparation schedule. The estimating likewise doesn’t appear to be really awful, all things considered. Much obliged for doing an exceptionally nitty gritty survey on this.

    • Hi Herman, thanks for taking the time to read and comment on this review. I used to run, but I can’t take the jarring impact on my knees anymore. Today I use an elliptical, recumbent bike, or a rowing machine. If you’re ever interested in getting exercise equipment, please let me know. I’m always happy to help.

      Best regards, Robert

  3. Hi! Great article!  I used to go for a long run around my neighborhood. But due to the pandemic, I was not able to make a run for a while. As a result, I can see the benefit of using a treadmill, and a great advantage is its shock absorption. Reading over your article, it appears to have a lot of capability for matching the user’s training preferences, which is very significant. Keep up the excellent work—very informative article. 

    • Hi there, thanks for stopping by. Would you please let me know if I can assist you in any way? I’d be happy to give you some treadmill suggestions based on your requirements.

      Kind regards, Robert

  4. For the price, I reckon this treadmill seems to be a good value for money, and I love the fact that it can fold away when not in use. I like the incline feature to simulate going up hills, and the shock-absorbing track will be kind to the knees and joints when running. 
    My only drawback is that my husband would not be able to use it as he is over 100 kg. 

    • Hi Michel, thanks for stopping by and sharing your thoughts with us. Please let me know if I may further assist you with exercise equipment. I’m always happy to help.

      Kind regards, Robert


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