Sunny SF-E3919 Cardio Climber | Perfect In-Home Cardio Machine

Climb to the top of your fitness routine with the Sunny SF-E3919 Cardio Climber. This premium in-home cardio machine combines the best of a step machine and elliptical to engage your lower and upper body muscles. Enjoy long-lasting climbing and striding sessions when you exercise on the steel climber frame with a maximum user weight of up to 260 lbs.

The SF-E3919 machine combines the best of stepping and striding in one intense movement. Climb to a vertical height of 9 inches and trek a horizontal distance of 7 inches. Engage your upper body to work synchronously with your lower body each stride as you grasp onto the full-motion handlebars.

The Sunny SF-E3919 Cardio Climber features eight magnetic resistance levels, allowing for easy workouts when you want them or challenging when you need them. Switch up the intensity to boost or lower your challenge based on your comfort level. Engage the 14 lb inertia-ready flywheel to perform challenging strides and climbs efficiently.

Use the SF-E3919 multifunctional fitness monitor to track important activity details, including time, distance, RPM, speed, calories burned, and pulse. The monitor also comes with a preinstalled calendar, thermometer, clock, scan, recovery mode, BMI, and body fat percentage calculator.

Learn more in my complete review below!

Sunny SF-E3919 Cardio Climber
Sunny SF-E3919 Cardio Climber

Product: Sunny SF-E3919 Cardio Climber

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

Warranty: Frame 3 years / Parts 180 days

My rating: is 8/10

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

Details and Specifications

  • Assembled dimensions: 44L x 25W x 64H inches (112L x 63W x 163H cm)
  • Assembled weight: 95 lbs (43 kg)
  • Flywheel weight: 14 lbs (6.3 kg)
  • Supported weight: 260 lbs (118 kg)
  • Stride: 7 inches (18 cm)
  • Adjustable incline: No
  • Resistance: Manual magnetic, eight levels
  • Fitness Monitor: Time, distance, odometer, RPM, speed, calories, pulse, goals, recovery, BMI
  • Extras: Tablet holder, HRC zones sticker
  • Warranty: Frame 3 years / Parts 180 days

SF-E3919 Frame Construction

The Sunny SF-E3919, Cardio Climber frame, is steel tubing, but the flywheel covers and the other drive and resistance elements are ABS-made. In addition, all the steel parts in its construction feature a durable black paint finish, resistant to chipping and corrosion.

Sunny SF-E3919 Cardio Climber

The unit’s main chassis is a one-piece element with the rail system directly welded to the frame. Thus, it considerably improves the overall sturdiness of the machine. Also, the two rail bars have stainless steel covers for extra protection. However, the console mast and the two base bars attach to the mainframe via bolts and screws.

Like most other steppers, the Sunny SF-E3919 has a pretty small footprint. It is only 44″ (112 cm) long and 25″ (63 cm) wide. Therefore, it can fit well even in a small room. Furthermore, leaving at least two feet of clearance all around the unit is advisable.

The fully assembled unit is relatively heavy. It weighs approx. 95 lbs (43 kg), so it is recommended that two persons carry the boxed machine. However, its relocation is accessible once assembled using its two front wheels. Also, its rear base bar integrates adjustable levelers so you can correctly stabilize the unit on any floor.

This Sunny elliptical machine features two sets of handlebars; one is stationary, and the other is mobile. The fixed handlebars attach directly to the console mast. They have small, standard grips and integrate EKG sensors.

The moving arms feature extended rubberized grips with ball grips at the top. They attach both to the main upright bar and the pedal bars, so they continue to move for as long as you are pedaling.

Elliptical path, stride, and step-up height

Since it’s a climber or an elliptical stepper, the Sunny  SF-E3919 cardio climber features an almost entirely vertical elliptical path.

The two rail bars of the pedals have an angle of approx. 45°, so the pedaling motion resembles the one of an elliptical trainer with an incline. However, the machine does not have an automatic or manual incline system; the two pedal rail bars are stationary.

Sunny SF-E3919 Cardio Climber
Sunny SF-E3919 Cardio Climber

The unit’s pedals are made of durable ABS material. They have a non-slip surface and inner guards for improved foot stability. However, they don’t have extra cushioning or articulations and attach directly to their bars via two screws. Nevertheless, they’re durable enough to support users up to 260 lbs (118 kg).

Since it’s an elliptical stepper, the Sunny SF-3919 doesn’t have a long stride. It offers a horizontal range of motion of only 7″ (~18 cm), which is pretty much characteristic of steppers. Nonetheless, due to the handlebar configuration, and the specific construction of the frame, it can provide high-intensity workouts with maximum stability.

The lowest pedal height (or step-up height) is approx. 10″ (25 cm), while the highest pedal point is approx. 16″ (40 cm) above floor level. Using the machine in a room with a ceiling at least 20″ (51 cm) higher than your height is advisable.

SF-E3919 Drive and resistance

The Sunny SF-E3919 Cardio Climber features a manual magnetic resistance system. Therefore, it doesn’t require an external power source or an adapter. Also, its console cannot automatically control the resistance and does not have preset workout programs.

The machine’s resistance system consists of a magnetic brake connected to the tension knob on the unit’s main upright bar via a steel cable. As you turn the knob clockwise, the brake moves closer to the flywheel, increasing the pedaling motion load.

Like many other fitness machines with a manual magnetic resistance system, the Sunny SF-E3919 offers eight tension levels. The first level delivers little resistance, which is great for recovery training. Conversely, the 8th level of resistance provides considerably more pedal tension, allowing the possibility of performing a more intense workout and improving strength and stamina.

The unit’s internal flywheel is not as heavy as a spin bike but weighs 14 lbs (6.3 kg), which is not bad for a home-use machine. It is perimeter-weighted for added inertia. It is also bi-directional.

Therefore, you can pedal in reverse to diversify your workouts. But, of course, when pedaling in reverse, the machine delivers the same resistance as pedaling forward.

This elliptical stepper comes equipped with a belt drive system. This type of transmission comes with several advantages. First, you don’t have to worry about separating the central unit for internal lubrication.

Sunny SF-E3919 Cardio Climber
Sunny SF-E3919 Cardio Climber

Second of all, the pedaling motion is tranquil, almost entirely silent. And finally, a belt drive produces less vibration than a chain drive, which results in a smoother pedaling motion.

Fitness Monitor

The Sunny SF-E3919 has a mid-range fitness monitor without any workout programs or online connectivity but offers plenty of features to keep you motivated.

The fitness monitor comes equipped with an LCD divided into multiple sub-sections. It tracks time, distance, speed, RPM, calories, and pulse. Each of these metrics has a separate window, except for speed and RPM, which share the same window; each remains on screen for 6 seconds.

The top, the larger display, can show any selected workout metrics. You can choose the unit’s Scan Mode, and they will rotate in a sequence of 6 seconds. In addition, the top display shows the current date, clock, and room temperature when the monitor is idle.

The speed and distance are shown in MPH and miles, while the temperature is Fahrenheit. Unfortunately, there is no option for metric units. Also, the monitor is not telemetric. Unfortunately, it cannot track your pulse through a wireless HR chest strap. If you want to monitor your heart rate during your workout, you need integrated sensors.

Although the fitness monitor has no preset programs, it offers goal settings for time, distance, calories, and pulse. So, when setting a target goal for any workout metrics, the monitor will show the remaining amount until you reach your goal. Likewise, the monitor will beep for a heart rate goal when you achieve the selected pulse rate.

The monitor also has a Recovery function and a BMI function. The Recovery function gives you a fitness rating at the end of your workout based on the time it takes your heart to return to an average BPM.

Sunny SF-E3919 Cardio Climber

The score is between F1 – excellent and F6 – poor. Next, the BMI function requires you to input your data, such as age, weight, height, and gender. Based on this, the monitor will calculate your body fat percentage.


Two other notable monitor functions are the tablet holder and the HRC sticker. The tablet holder is above the LCD so that a tablet won’t cover your workout stats. Unfortunately, the monitor has no docking ports for your phone or tablet.

The HRC sticker is placed at the top section of the monitor and shows the heart rate zones you should aim for depending on your age to benefit from a better aerobic output, fat burn, etc. Not all ellipticals have this feature; this HRC grid is usually in their manual, so you may not have it all the time when you exercise.

SF-E3919 Assembly and Maintenance

The base frame of the machine comes pre-assembled; this also stands for its drive and resistance elements. However, the two base bars, the monitor mast, the pedals, the handlebars, and the fitness monitor still require assembly.

Consequently, the task is not too complicated; the manual provides clear assembly instructions and schematics, but it can take two hours. Also, all the necessary tools for the assembly come with the machine.

Once fully assembled, you don’t have to worry too much about maintenance. The internal parts don’t require any lubrication. So, it’s advisable to keep the unit clean, especially the rails, and lubricate the joints if necessary.


  • Sturdy steel frame – can support users up to 260 lbs;
  • Aesthetic and compact design;
  • Transport wheels on the front base;
  • Adjustable stabilizers on the rear base;

    Sunny SF-E3919 Cardio Climber
    Sunny SF-E3919 Cardio Climber
  • Durable, oversized pedals with inner guards for extra foot stability;
  • Moving arms with ball grips at the top;
  • Fixed handlebars with pulse sensors;
  • Reinforced and precision-welded rail bars for improved sturdiness;
  • Quiet belt drive system;
  • Manual magnetic resistance – 8 levels;
  • Fitness monitor with multi-window LCD;
  • Goal settings on the monitor;
  • Recovery and BMI functions;
  • Clock, date, and temperature functions;
  • Tablet holder included;
  • HRC sticker included;
  • Easy to assemble;
  • All the assembly tools come with the machine;
  • Little maintenance is required;
  • Excellent warranty.


  • The fitness monitor LCD doesn’t have a backlight;
  • The fitness monitor does not have online connectivity;
  • There is no bottle holder.

Sunny SF-E3919 Cardio Climber Summary

The Sunny Health & Fitness SF-E3919 Premium Cardio Climber is an elliptical stepper machine with an 8-level magnetic resistance system, a durable set of pedals, and a fitness monitor that can track all the essential workout metrics.

Furthermore, it has a compact and durable frame, two sets of handlebars, and a pulse reading function. As a result, it’s an excellent machine for light to high-intensity cardio workouts, muscle toning, stamina development, and weight loss. In all, it offers superb value for the 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 that you should consult your physician to determine if you have any medical or physical conditions that could risk your health and safety 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.

10 thoughts on “Sunny SF-E3919 Cardio Climber | Perfect In-Home Cardio Machine”

  1. Because of the situation with COVID 19, all of the Gyms are closed. This makes it a perfect time for a review of the exercise equipment that you can use at home. Your article contains a fantastic amount of information on the cardio climber. You have given all of the specifics to make an informed purchase.

  2. Hello dear. I am delighted you shared this information with us. I was searching online when I saw your post on the SF-E3919, I love how you specified them. I was not sure of how it worked, but after going through your article my doubt has been cleared, I think I’ll purchase it tomorrow. Thanks a lot for the info.

    • Thanks for your interest in the Sunny SF-E3919 Cardio Climber. I wouldn’t wait too long to purchase this machine because exercise equipment is selling fast due to COVID-19.

      All the best!

  3. If I am looking for a solid piece of home gym equipment, this would sound like a go-to. It has the full-body movement you look for when incorporating a machine into your home gym. In addition, I like how you described the dimensions of the equipment in your article so that way we can gauge how it might fit in the gym!

    • Hi Caleb, thanks for stopping by. Would you please let me know if you would like some equipment suggestions based on your requirements needs? I’d be happy to help.

      Kind regards, Robert

  4. Thank you for the review on the elliptical.  These things are gaining ground for at-home use.  You get the features of the ones at the gym but in a smaller compact version.  This model here seems to be just suitable for at-home use.  It appears to be easily stored and moved around.  I am checking into one now.  Thank you again, and have a great day.

    • Hi Justin, thanks for stopping by. I am glad to hear that you are checking into exercise equipment. Would you please let me know if I can offer any assistance?

      Kind regards, Robert

  5. Great article on the Sunny cardio climber! I was browsing through and came across this one and realized I already have this one, and it is a great workout machine. All you need is 10 minutes to work up a sweat. Mines does have a bottle holder, but maybe it’s different for each one, not sure. I’m looking for more workout equipment to add to my gym, and this is a great resource to weigh the pros and cons of each piece of equipment. Thank you so much for this info! I’m hoping to be able to make another purchase soon. 


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