Search  for anything...

Sunny Health & Fitness Smart WiFi Treadmills – Compact, Foldable, Portable, Under Desk & Incline Options (Manual & Auto), Brushless Motor, & Bluetooth SunnyFit App, LED Display, Shock Absorption

  • Based on 9,192 reviews
Condition: New
Checking for product changes
$388.45 Why this price?
Save $211.54 was $599.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Apr 7
Order within 5 hours and 54 minutes
Available payment plans shown during checkout

Style: Classic


Features

  • POWERFUL DRIVE SYSTEMExperience reliable performance with a robust 2.20 peak HP drive system, providing speeds ranging from 0.5 to 9 MPH, catering to various fitness levels.
  • ADJUSTABLE INCLINE LEVELSCustomize your workout with 3 manual incline options (0%, 2%, 4.37%) to meet your comfort and intensity preferences, enhancing your overall exercise experience.
  • EMERGENCY STOP BRAKEEnsure safety during workouts with an emergency stop brake feature.
  • DURABLE & STABLE CONSTRUCTIONBuilt to accommodate different users, this treadmill is designed for various users, providing stability and durability for your fitness routine.
  • SPACIOUS RUNNING SURFACEEnjoy a generous running area with dimensions of 49 L x 15.5W inches, offering ample space for comfortable walking or jogging
  • CONVENIENT STORAGE & MOBILITYConveniently fold and unfold your treadmill with an easy folding mechanism and soft drop system. Effortlessly transport your treadmill within your home to accommodate your preferred workout space.
  • HANDRAIL CONTROLSTake control of your workout with handrail controls that allow you to adjust speed, start and stop the treadmill. The pause function lets you stop the belt while preserving your running data.
  • DIVERSE WORKOUT PROGRAMSChoose from 9 built-in workout programs designed to add variety and challenge to your fitness routine. The large LCD displays provide real-time information on time, distance, speed, calories burned, and pulse.
  • SMARTPHONE/TABLET HOLDERStay connected and entertained during workouts with the convenient smartphone/tablet holder included, accommodating a variety of devices for a personalized and engaging exercise experience.
  • Sunny Health & Fitness CommitmentA top fitness brand for 20+ years, offers superior products and a dedication to excellence. Count on our committed customer service and enjoy peace of mind with a 3-year warranty on the structural frame.

Specs & Other Info

SpecificationDetails
ManufacturerSunny Health & Fitness
Material CompositionAlloy Steel
Product ColorGray
Item Dimensions25.5"D x 60"W x 50"H
Weight of Item103 Pounds
Max Velocity9 Miles per Hour
Unique FeatureIncludes Monitor
Recommended SettingsIndoor Residential
AudienceAdults
Maximum Output2.2 Horsepower
Incline Capability4.3%
Setup RequiredYes
Display TechnologyLCD
Energy SourceCorded Electric
Number of Workout Programs9
Components IncludedTreadmill, User Manual
Maximum User Weight220 Pounds
Running Surface Dimensions49"L x 15.5"W
Frame MaterialAlloy Steel
Top Speed9 MPH
Compact Dimensions When Folded36"L x 25.5"W x 58"H
Monitor Diagonal Measurement20 Inches
Power Requirement220 Watts
Minimum Speed Option0.5 Miles per Hour
Warranty Policy3 year structural frame / 180 days other parts and components
Product ModelSF-T4400
Intended UseUnisex-Adult
Launch DateOctober 22, 2014

Frequently asked questions

To fold the treadmill, ensure the machine is turned off and unplugged. Locate the knob or lever at the base or lower section of the treadmill. Release it, then carefully lift the deck until it locks into a vertical position. To unfold, gently press the release mechanism and lower the deck to the ground firmly and slowly to avoid any sudden impact.

Yes, you can track your workout progress using the exclusive SunnyFit App. Start by downloading the SunnyFit App on your smartphone or tablet from the app store, then connect it to your treadmill via Bluetooth, if your model includes this option. This app allows you to monitor your heart rate, speed, distance, and calories burned in real-time and stores your workout history for progress tracking.

Absolutely, this treadmill is equipped with a built-in shock absorption system that reduces impact on your joints during your workouts. This makes it suitable for longer running sessions and for individuals with joint concerns, providing a more comfortable and safer exercise experience.

The one-touch speed buttons on the treadmill allow you to instantly change your speed without the need to manually adjust through settings. This feature provides quick selection of commonly used speeds, making it easier to vary your workout intensity or return to a comfortable pace without interruption. Simply press the desired speed button while exercising.

Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The reviewed treadmill presents itself as a solid, budget-friendly option suitable for home gyms and personal use, with positive feedback on its easy assembly, functionality, and compact size allowing for folding and storage. Users praised its sturdiness and performance for both walking and running, highlighting its incline capabilities and sufficient track size for comfort. While there are minor criticisms regarding the heart rate monitor's accuracy and a few ergonomic oversights, the overall sentiment is highly favorable, indicating a reputable choice for those seeking an efficient and space-saving exercise solution.

Pros

  • 👍 Suitable for users of various sizes, with a track comfortable for running and walking
  • 🏋️ Assembly is straightforward, manageable even in tight spaces
  • 📐 Compact and foldable design, ideal for home use with limited space
  • 💰 Excellent value for the price, offering good quality and functionality
  • 🚀 Features incline capabilities and easy storage, enhancing workout variety

Cons

  • ❗ Heart rate monitor found to be inaccurate by some users
  • ⚙️ Manual incline adjustment rather than automatic
  • 🔊 Can be loud at higher speeds, though manageable with headphones or background music
  • 🥤 Cup holders and tablet holder are a bit small

Should I Buy It?

If you are in the market for an affordable, space-saving treadmill with good functionality for daily use, this product comes highly recommended by users. Despite minor flaws such as the heart rate monitor's accuracy and manual incline adjustment, its overall performance, ease of assembly, and sturdiness make it a worthy investment for those looking to maintain or start their fitness journey from the comfort of their home.


  • Sunny T4400
Style: Classic
To start off I needed to keep up with a cardio workout after finishing a rehab program. I don't like to cold weather so a treadmill was my option. Traffic where I live is like being on RT 95 in rush hour. So, with that said I started reviewing foldable tread mills as I don't have a lot of space. I did a lot of research on size and cost and decided on this purchase. Shipped and arrived in 3 days. I was one of the lucky ones as it arrived undamaged. The hardest part of assembly was getting it out of the box. A monkey can assemble the machine. 10 bolts and its up and running. Folding running deck makes it possible to move around fairly easily. This is a simple treadmill. The deck is large and there is plenty of room to walk or jog. I was impressed with the size and space. The computer is user friendly and simple to operate. Large readout of speed, time, distance, etc. The preprograms are cool but I really haven't used them at this point. The manual include is easy to change. I looked at Sunny auto incline but fewer moving parts leaves fewer parts to break. Folding mechanism is straight forward and works as advertised. The motor is a 2.2 hp and runs surprisingly quietly and smoothly even at higher speeds. The cup holders are big enough for a water bottle, so no complaints there as other customers have complained about. Tablet shelf is large enough to hold a tablet. A rubber mat under the machine is a must whether it sits on carpet or floors. Its not a heavy machine and along with the shock absorbers the rubber mat is a must. Lubing the machine is easily done and MUST be initially done prior to use. The factory aligned the belt and after several uses has stayed straight and tight. Include is the adjuster tool and instructions for adjustment if and when its needed. Overall, very happy with this purchase. Solid construction, small size but good sized deck and simple ease of operation makes this a good choice for the price range. This is not a thousand dollar plus gym machine. But if you are looking for a descent machine under $300.00 this machine is a good investment. ... show more
Reviewed in the United States on January 5, 2020 by towcapt

  • A great budget-friendly treadmill! Buy it!
Style: Classic
This is a great treadmill. I read many reviews and spent a long time to decide on an under $500 treadmill. This hasn't disappointed and it's been about a month. I use this daily at a full sprint and regular walking/jogging as well. Like most treadmills in this price range, the belt width was something i didn't want to compromise on. I was weary after experiencing much wider belts at the gym, but this belt size didn't impact my running or workout. The quality is nice, it's heavy and well grounded. The panel is plastic and definitely not 'high-end' but unless you're expecting this to wow people with design, it's not even an issue. Easy to fold up and a cool slow release to fold back down. Just measure out your room and understand this will need a corner to hang out in as it doesn't fold completely down to hide under a bed or anything like that. Pros: -Easy to assemble. The box was a bit heavy - so have some help or get a dolly to help roll it around. It was well packed and even with a rough looking tear in the cardboard, the treadmill was nicely protected with foam, plastic wrap and more cardboard. Took maybe 30min to set it up. - The folding makes it easy to store in a corner and not take up space when not using. It's in my home office and doesn't crowd the room at all. - Simplicity. You turn it on and just go. The speed programs are nice, but lets be real, you're gonna be adjusting the speed manually most of the time. The screen is well lit, bright and has the basic information you need. Time..speed, distance..calories burnt etc.. - The speed controls are also on the right handle which is very convenient. Also, on the left handle, a basic Start/Stop option. I rarely touch the actual panel in the front to adjust speed or turn on. - The belt seems to be strong and it is easy enough to lubricate. I had to tighten the belt after feeling like it was slipping at a full sprint, but with the allen tool they provided, it was a very easy and simple fix. There are plenty of videos on youtube that will show you how to properly do this, as well as the user guide. - It runs quiet but once you start running it's a bit loud. But you're running on a metal board...so get headphones or turn on music. - You don't need to have some monthly subscription to actually use it. It is a basic treadmill. Start it. Run on it. Get fit. Find training videos on youtube.. they're free and effective. Cons: - The heart rate monitor doesn't seem to be accurate at all. I don't really care much about this especially since i use a fit bit. Again, it's not the point. You use this to run on. Keep your expectations within your price range. - Manual incline - but again, not a deal breaker. If you're wanting automatic/advanced inclines, you won't be spending under $500. - Handles have rough ends and sometimes while in a sprint, my hands/arms might graze them. It's not hard plastic, but just rough padding ends i guess. A bit annoying but nothing serious. - The two cupholders are a bit shallow, but they easily hold a typical bottle of water in place even when running on it. - It has an area for you place a tablet on the main panel, but it's not that large. I place my phone there though with no issues. Overall, it's a great entry level treadmill to have around your office or home gym. I enjoy walking on it, doing some HIIT exercises on it and jogging. I will always prefer real running, but this is a great option for cold weather and rainy days. The price is great, and it delivers a solid option to get into shape. Whether you choose this or another, don't get analysis paralysis! Get it ordered and on the way so you can hit those fitness goals! ... show more
Reviewed in the United States on November 30, 2020 by Skyler A.

Can't find a product?

Find it on Amazon first, then paste the link below.