Energy Flex Motorized Treadmill

Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill
Energy Flex Motorized Treadmill

Energy Flex Motorized Treadmill


27 reviews

Regular price

List Price:

Sale price $699.00 Save $240.98

device holder icon

Performance Monitor

Monitor icon

Bluetooth Connectivity

sturdy frame icon

16 Automatic Incline Levels

Pulse sensor icon

Pulse Sensors


Change the way you build your cardiovascular fitness with the Sunny Health & Fitness SF-T7724 Energy Flex Motorized Treadmill. Run on the space-saving running deck (51.5L x 18W in) that is equipped with a responsive shock absorption system. The cushioned belt on the flex treadmill absorbs impact on each step, which can reduce stress on your lower-body joints as you exercise. Designed for both walking and running, this indoor treadmill can achieve speeds between 0.6 MPH and 10 MPH. Control your workout intensity with 15 levels of automatic incline. Track your cardiovascular performance with the built-in pulse sensor grips. Use the back-lit, color performance monitor to track your speed, time, distance, calories burned, pulse, and incline level. Customize your workout experience with 3 countdown workouts, 3 user-customized workouts, BMI calculator and 16 pre-set programs. Enjoy convenient quick buttons that control speed and incline.



Exercising with your Flex Motorized Treadmill screen display will showcase the distance and time to keep you focused on achieving any type of personal fitness goals. Your performance monitor will track and display Speed, Time, Distance, Calories burned, Pulse and Incline to help keep you in control of your workout sessions.


Device Holder w/ Media Port

Add multimedia entertainment to your workout experience when you place a personal device on the integrated device holder. Charge your device with the on-board USB port, and play your favorite music through the included AUX cable port.



Instantly adjust your running speed and incline levels with the on-console options. Easily adjust treadmill speeds to 2, 4, 6 or 8 mph with the speed quick buttons. Use the incline quick buttons to adjust the incline levels to 3, 6, 9  or 12%.


Built in Speakers

Play your music through the speakers on the treadmill by connecting your favorite music player to the indoor treadmill. Answer and deny phone calls when you work out using the on-console buttons. And hold phone conversations on the treadmill with the built-in microphone. 


16 Preloaded Programs

Mix up your workout with 16 preset workouts, 3 user-customized workouts, and 3 countdown workouts. The cardio machine is also equipped with a BMI calculator.


Pulse Sensors

Monitor and maintain your target heart rate. Measuring your pulse rate is an important tool for exercising correctly and efficiently. The more steady and prolonged the elevated heart rate is during the workout, the more fat is burned. This important piece of health data will help you better understand your health and fitness status.



Enjoy speeds from 0.6 - 10 MPH with up to 15 levels of automatic incline. Running deck measures at 51.5L X 18W in so you have plenty of room to walk or run. Maximum weight capacity is 240 lb. Pull the emergency stop clip to immediately stop the treadmill.



The soft-drop hydraulic mechanism on the Sunny treadmills is a great feature that allows the deck to gently lower itself to the floor. The soft drop hydraulic mechanism assures safe, hands free unfolding. No longer will you fear scuffing your floors when dropping your treadmills base. Fold your treadmill for storage and unfold your treadmill when it’s time to work out.


Transportation Wheels

Making the transformation of your home into your own personal fitness studio is effortless with these convenient transportation wheels. Simply tilt and roll out for use or away for storage, no need for heavy lifting or muscle strain. The wheels at the front of the unit allow the user to move their equipment around with ease, from room to room, or store it away out of sight.



Digital monitor: speed, time, distance, calorie, pulse, incline

Quick incline buttons: 3%, 6%, 9%, 12%

Quick speed buttons: 2, 4, 6, 8 MPH

16 pre-loaded programs


Aux port/USB port

Built-in speakers

Device holder



High-density rubber handrails

Shock absorption

Running Deck: 51.5L x 18W in


Bottle holders

Transportation wheels


240 lb Weight capacity

Speed Range 0.6 - 10 MPH


15 Automatic incline levels

Soft drop system

2.5 Peak HP



Warranty: 3 year structural frame 180 days other parts and components

Product weight: 125.7 lb

Product dimensions: 69L x 30W x 54.5H in

Folded dimensions: 44.75L x 30W x 57.5H in

Ship weight: 144.4 lb

Ship dimensions: 71.7L x 30.7W x 12.8H in

Warning iconCancer and Reproductive Harm -

  Warning iconCancer and Reproductive Harm -


The Product Manual may be below. If you have any questions, please feel free to contact our customer care team.

Yes! This treadmill comes equipped with built-in speakers and Bluetooth connectivity so that you can converse on the phone or stream music to make your workout more enjoyable.

Yes! We have a great library of workouts that you can perform on your treadmill, which can be found on the Workouts section of our website as well as on our YouTube channel.

This treadmill achieves speeds of up to 10 MPH, with quick speed buttons at 2, 4, 6, 8 MPH.

Yes! it has 15 levels of motorized incline that can be adjusted with quick incline buttons for levels 3, 6, and 12.

Feel confident on our durable design with a 220LB max user weight limit.

The digital monitor helps track time, incline, speed, distance, pulse, calories, and steps.

Yes! The treadmill can be easily and safely folded and unfolded with the soft drop hydraulic mechanism, and moving the treadmill to storage from your workout space is made easy with the transportation wheels.

Yes! The assembly is simple and requires on a few easy steps. All tools required for assembly are included.

There is a 3-year warranty on the structural frame and 180-day warranty on other parts and components.

Customer Reviews

Customer Reviews
4.6 Based on 27 Reviews
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Filter Reviews:
United States United States
It over exceeded my expectation

I absolutely love and am pleased with it.

Diane B.
United States United States
I'm loving my treadmill

I have had my treadmill for two weeks now and I am loving it so much I can do my excerice and if I need to stop for awhile I can pause and then go back. Loving It. Thank you Sunny for the best thing that has happened for me. A VERY SATISFYING CUSTOMER!!!

Megan P.
United States United States
Nice for the price

This machine is good for what I need. It fits in my space and I can run on it. It doesn’t have anything fancy. It’s comfortable to run on. It’s not very loud, but I don’t really have any comparisons. It was a great price. The only option it doesn’t have, that I wish it had is free mode. The box came dented and there were a few pieces dented, but by the time it got here I didn’t want to go through the hassle of sending it back. Everything works ok and I don’t blame Sunny for transport. Its just really heavy piece to ship and I almost expected some issue with shipping. It also took a few weeks to ship, which I didn’t expect. Overall I’m satisfied with the machine. It’s a good little starter. If I continue to run I will probably upgrade.

United States United States
annoying squeaking

The treadmill works will but there is a loud squeaking during use. It has had this squeaking since day one and we have only had it for a few weeks. If we can get the squeaking to stop I will revise this review.

Sunny Health and Fitness

Hello JG! Thank you for bringing this to our attention so we can better service you. We sincerely apologize that you experienced this setback. Please reach out to us at and we’ll be happy to assist. Thank you for your time and we hope to hear from you soon!

Kenise H.
United States United States
Sunny Health & Fitness Energy Flex Motorized Treadmill

I'm very pleased with the treadmill. I was very disappointed with the delivery service. Box was ripped in 2 places. they left the box at the bottom of my front stairs.

Sunny Health and Fitness

Hello Kenise! Thank you for taking the time to write a review. We're so sorry to hear you experienced this with our shipping partner. We sincerely appreciate your feedback and have made notes regarding this and will work with our shipping partner to ensure this doesn't happen again. Thank you for your time and have a Sunny day!

A Sunny Health and Fitness Customer
Jason B.
United States United States
Great Features. Build quality could be better

Things I love about it: Love the cushion as you run, the auto-incline and the speakers to play audio out of. Things I wish I could change: The build quality is a bit low: some of the handle parts don't line up correctly and a screw on the bottom would not screw in all the way. I wish bluetooth worked both ways: that you could stream music to the treadmill via bluetooth instead of just the 3.5 mm cable. Heart rate tracker seems low.

Sunny Health and Fitness

Hello Jason! Thank you for bringing this to our attention so we can better service you. We sincerely apologize that you experienced this setback with our product and want to get your product up and running the way it's suppose to. Please reach out to us at and we’ll be happy to assist. Thank you for your time and we hope to hear from you soon!