A lady runs on the Sunny Health & Fitness Energy Flex SF-T7724 Treadmill 

Sunny Health & Fitness Energy Flex SF-T7724 Treadmill 

The Sunny Health & Fitness Energy Flex SF-T7724 Treadmill is electric, and it integrates an automatic incline system, Bluetooth speakers, 16 preset workout programs, and more.  

It is your typical home treadmill with an average running surface of 51.5’’ long by 18’’ wide. This means you will be able to walk, jog, and perform light or serious running depending on your height. Getting on the deck is not a hassle because the step-up height is 7’’.  

Click right here to have a peek at the best price of the Sunny Health & Fitness Energy Flex SF-T7724 Treadmill.  

The Frame & Construction 

Sunny Health & Fitness Energy Flex SF-T7724 Treadmill 

The Sunny Health & Fitness Energy Flex SF-T7724 Treadmill has an alloy steel frame that is powder-coated with anti-corrosion gray paint, while other parts such as the side rails, the motor cover, and the dashboard are made of durable plastic.  

Users that are up to 240 lbs./108.86 kg or less can exercise with the treadmill.  

As for stability, it is good to go because there is a crossbar tubing with rubber pads underneath at the front base that promotes traction. Moreover, the treadmill weighs 125.7 lbs./57 kg, which stabilizes it further.  

However, ensure to use the machine on an even surface with a rubber protective mat to guarantee optimum stability.  

To move the treadmill around the room won’t be a problem because there are transport wheels incorporated and a SoftDrop technology that helps you to easily fold and unfold it when necessary.  

Just as most treadmills, this is going to require a little bit of space for workouts, but not as much once folded for storage.  

The assembled dimensions are 69’’ (175.26 cm) long by 30’’ (76.2 cm) wide by 54.5’’ high. Differently put, it’ll require a workout area with measurements of 5’75’’ length by 2’5’’ width, plus extra clearance of 2’ on each side and the rear for a safe and conducive workout experience.  

While on the other hand, the folded dimensions are 44.75’’ in length by 30’’ in width by 57.5’’ in height. Hence, a storage area with measurements of 3’72’’ length by 2’5’’ width will accommodate it.  

The Deck of the Sunny Health & Fitness Energy Flex SF-T7724 Treadmill 

Again, the deck features a 51.5’’ long by 18’’ wide running surface, and the step-up height is 7’’. It has a shock-absorbing system that reduces the stress that is usually felt on the joints while jogging or running.  

It is safe to hang onto the wide textured side rails as a quick exit while exercising without turning off the treadmill. By the way, it is recommended to stand on those rails before starting up the treadmills to avoid an injury. 

The Motor 

The motor is 2.5 peak horsepower, and it provides a speed range of 0.6-10 mph (1-16 km/h). This covers walking, jogging, and running activities. 

It is energy-efficient not to put a burden on your energy consumption, and durable enough not to break down or overheat as a result of usage. It is safely enclosed at the front base of the treadmill and covered with a plastic lid.  

The sound and operation are quiet and smooth. It can barely be heard because even the sound of your footfalls is noisy in comparison.  

The speed can be increased or decreased gradually by 0.1 mph through the +/- keys on the handlebar, or significantly via the 2, 4, 6, 8, quick buttons on the console. In other words, you can micro-set the speed level to what suits you, or you can quickly do the speed on the fly as you exercise; and the good thing is that they are handy and easy to do.  

The measurement unit can be converted from imperial to metrics, and vice versa; that is in miles or kilometers.  

The Incline 

The Sunny Health & Fitness Energy Flex SF-T7724 Treadmill has an automatic incline system with 15 adjustable levels. This intensifies or de-intensifies your workout experience, depending on what you wish to achieve.  

The incline can be adjusted by a level at a time through the gradual +/- keys on the left handrail or quickly and significantly through the 3%, 6%, 9%, 12% buttons on the left side of the console.  

This plays a vital role in weight loss and strength and endurance training.  

The Console 

The console of the Sunny Health & Fitness Energy Flex SF-T7724 Treadmill 

The Energy Flex SF-T7724 Electric Treadmill has a console with decent features.  

First, it has a backlit LCD monitor that tracks workout stats such as Time, Distance, Speed, Calories, Incline, and Heart Rate. These values are shown with high readability that cannot be compromised no matter the lighting condition of the room.  

Although to view your heart rate data, you must grasp the handlebars with the HR sensors, otherwise, it will be a no-show. Unfortunately, the console is not compatible with any wireless heart rate chest strap.  

That being said, aside from the function keys such as Mode, Prog, Up/Down, Speed, and Incline buttons present on the console, there are 16 preset workout programs. Each program is divided into 16 segments with equal time duration.  

When any of the preset workout programs is selected, speed and incline will automatically apply. Differently put, you don’t have control over the speed and incline as they are preset.  

However, there are 3 user profiles available. These enable you to create your own custom programs with each user profile. Once a user profile is selected, you will be required to set the time, speed, and incline level of your choice, and that’s it.  

Also, there is a countdown mode for Time, Distance, and Calories. You can set a goal for a time duration, the distance you wish to cover, or calories you wish to burn, and once the set value counts down to zero the treadmill stops and returns to a Manual mode.  

The console includes a Body Mass Index (BMI) function. This function determines in percentage based on the information entered whether you are underweight, normal, overweight, or obese. If this function is selected, you are required to enter your gender, height, age, and weight for accurate calculation output.  


Sunny Health & Fitness includes Bluetooth speakers for playing music through your smartphone, a USB port for charging your device and keeping it alive, an AUX port, a tablet holder, and accessory trays.  

This means you cannot only enjoy listening to music or watching a movie while exercising but you can keep water handy to maintain proper hydration too.  

These extras are directly or indirectly helping you to succeed with your fitness goals.  


This lady moves the Sunny Health & Fitness Energy Flex SF-T7724 Treadmill to a storage area

This is by no means a compact treadmill but it has a space-saving design that helps with storage.  

It could easily be folded, (thanks to the SoftDrop system) and be moved to a storage area via the integrated transport wheels even though it weighs 125.7 lbs./57 kg.  

When folded, the length of the treadmill becomes 44.75’’ (113.66 cm) from 69’’ (175.26 cm) when it’s unfolded. So, a storage area with measurements of 3’72’’ length by 2’5’’ width will be accommodative.  

Pros/Features Overview 

  • Strong and sturdy 
  • Supports 240 lbs./108.86 kg maximum user weight capacity 
  • Space-saving design; it’s got a SoftDrop system that helps you to easily and safely fold and unfold it 
  • Transport wheels are present for relocation process 
  • The deck has a shock absorbing system that reduces stress on the joints 
  • Its 2.5 peak horsepower is energy-efficient, silent; and it provides a speed range of 0.6-10 mph (1-16 km/h) 
  • Automatic incline system with 15 adjustable levels takes the ramp from 1.65 degrees to 6.1 degrees 
  • Backlit LCD monitor tracks workout stats such as Time, Distance, Speed, Calories, Incline, and Heart Rate 
  • EKG contact grips; 
  • Countdown mode for Time, Distance, and Calories 
  • Body Mass Index (BMI) function included 
  • 3 User profiles for custom program 
  • 16 preset workout programs 
  • Gradual and quick keys for speed and incline 
  • Low maintenance 
  • Easy to assemble 
  • Built-in Bluetooth speakers 
  • USB & Auxiliary ports 
  • Tablet holder included 
  • Water bottle holders included 


  • No app or online connectivity 
  • The console is not telemetric (not compatible with wireless HR device) 
  • The treadmill is not for serious runners 



  • 3 Years for the Frame 
  • 180 Days for Parts and other components 

Product Dimensions & Specifications 

  • Length: 69’’ 
  • Width: 30’’ 
  • Height: 54.5’’ 
  • Folded dimensions: 44.75’’ L x 30’’ W x 57.5’’ H 
  • Shipping dimensions: 71.7’’ L x 30.7’’ W x 12.8’’ H 
  • Maximum user weight capacity: 240 lbs./108.86 kg 
  • Runing surface dimensions: 51.5’’ L x 18’’ W 
  • Net weight: 125.7 lbs./57 kg 
  • Gross weight: 144.4 lbs./65.49 kg 
  • Color: Gray 
  • Frame: Alloy steel 
  • Shock absorbing deck 
  • Motor: 2.5 Peak HP 
  • Speed range: 0.6-10 mph/1-16 km/h 
  • Monitor: Backlit LCD 
  • Programs: 16 Presets, 1 BMI, 3 User profiles 
  • Countdown goals for Time, Distance, & Calories 
  • Incline: Automatic, 15 levels 
  • SoftDrop system 
  • Transport wheels: Yes 
  • USB/Aux ports 
  • Tablet holder: Yes 
  • 2 Water bottle holders 


The Sunny Health & Fitness Energy Flex SF-T7724 Treadmill is shipped in a box that weighs 144.4 lbs./65.49 kg with dimensions of 71.7’’ long by 30.7’’ wide by 12.8’’ high.  

Some major vendors, including Amazon, gets it delivered in a couple of days without a shipping fee.  


The treadmill is almost preassembled, such that with only a few easy steps you will be able to have it up and running under an hour.  

After unboxing it, you only have to attach the console/dashboard stands and the console to the core unit.  

The tools and instruction manual required for a successful assembly are included in the package.  


The maintenance needed is basic, such as cleaning it on a regular basis. Ensuring that the tread belt does not have dirt or debris between the openings on each side to avoid sticking.  

You may periodically have to lubricate the tread belt for optimum performance.  

Finally, try to store the unit in a room that is dry, cool, and clean.  


You will appreciate Sunny Health & Fitness Energy Flex SF-T7724 Treadmill if the absence of app and wireless heart rate connectivity is not a deal-breaker for you.  

It supports up to 240 lbs./108.86 kg maximum user weight capacity. Its energy-efficient 2.5 peak horsepower motor provides a speed range of 0.6-10 mph.  

There are 16 preset workout programs to select from, 1 BMI, 3 User profiles, and countdown goals for Time, Distance, and Calories.  

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