Start a low-impact cardiovascular training routine with the Sunny SF-E3875 Elliptical Trainer. Confidently stride when you step onto the oversized textured footplates designed for optimal grip and balance. Crafted for long-lasting workouts, the durable steel frame on the elliptical cross trainer supports a maximum user weight of 300 lbs.
The SF-E3875 elliptical is for dynamic workouts; you can pedal forward and backward along the 19.5-inch stride length while working every muscle in your lower body. Increase workout intensity by adjusting the 16 levels of computerized resistance in a matter of taps.
The Sunny SF-E3875 elliptical trainer features a fitness monitor to track your time, distance, speed, calories burned, heart rate, wattage production, and RPM. Take advantage of 24 different program modes. Additionally, preset goal-driven workouts will base your performance on watt generation, BMI data, heart rate, and custom user values.
It’s easy to monitor and maintain your target heart rate with the Sunny SF-E3875. Measuring your pulse rate is an essential tool for exercising correctly and efficiently. The more steady and prolonged the elevated heart rate is during the workout, the more fat gets burned. This critical health data will help you better understand your health and fitness status.
Learn more in my complete review below!
Product: Sunny SF-E3875 Elliptical Trainer
Warranty: Frame 3 years / Parts 180 days
My rating: 8.25/10
Affiliate Disclosure: As a Sunny Health & Fitness Affiliate Program participant, I earn commissions on purchases made through links in this post. Full disclosure
Details and Specifications
- Assembled dimensions: 62″L x 26″W x 70″H (157L x 66W x 178H cm)
- Assembled weight: 189.6 lbs (86 kg)
- Weight limit: 300 lbs (136 kg)
- Stride: 19.5 inches (49.5 cm)
- Incline: No
- Resistance: Eddy current, 16 levels
- Fitness Monitor: 24 programs
- Extras: Bottle holder, tablet holder
- Warranty: Frame 3 years / Parts 180 days
SF-E3875 Frame and parts
The Sunny Health & Fitness SF-E3875 features a frame made of steel tubing with heavy-duty construction. With all the parts assembled, it weighs approx. 189.6 lbs (86 kg); thus, it takes two people to carry the machine.
But on the other hand, all this weight is reflected in its overall stability. Plus, its four adjustable and rubberized levelers enhance its stability.
Despite its weight, once assembled, it is relatively easy to move. Its front base has two large rubberized wheels, while its rear tube features a lifting handle. Therefore, you won’t have to handle more than 30% of its total weight by lifting it from its grip and using the front wheels.
The machine’s metallic base is a one-piece element. Due to this aspect, the machine provides superior sturdiness. It also has a dual rail system for the pedals, which leads to better stability and a sure-footed feeling during pedaling.
The steel bars in this Sunny elliptical trainer’s frame construction come coated with a durable powder finish resistant to chipping and corrosion.
The top metallic covers of the rails are an exception, though. They are aluminum materials, and they’re not powder coated. The front covers of the drive and resistance elements are ABS material; this also stands for the pedals.
The Sunny SF-E3875 is a relatively large unit. When fully set up, it is approx. 63″ (157 cm) long and 26″ (66 cm) wide, while its highest point is the top of its moving arms, which reach approx. 70″ (178 cm) above floor level. Thus, you should assign a usage area for it of at least 110″ x 70″ (280 x 178 cm).
The machine has two sets of handlebars, one mobile and one fixed. The mobile handlebars feature extended, curved grips and ball grips at the top. The fixed handlebars weld directly to the front main mast; they offer a horizontal grip. They also integrate metallic sensors for heart rate detection.
Stride, elliptical path, and step-up height
First of all, Sunny SF-E3875 does not have an incline system. Therefore, the elliptical path and the stride length are not adjustable. However, the machine offers a stride length of approx 19.5″ (49.5 cm). Consequently, it should accommodate users up to 6’2 ″ – 6’3 ″ (188 – 190 cm) with no problem, promoting a complete range of motion.
The pedals can support users up to 300 lbs (136 kg). They are made of durable ABS material and attached to heavy-duty steel bars. Also, they have a textured surface for improved adherence and inner borders for extra foot stability.
They integrate a double wheel system each for superior stability. The integrated wheels feature industrial-grade ball bearings for smooth motion over the rails.
This elliptical path of this Sunny cross-trainer is slightly inclined forward. Thus, the pedaling motion feels like descending on a very soft ramp. Therefore, it focuses on the glutes, but overall, it delivers a consistent workout for multiple muscles.
At their lowest position, the pedals are at approx. 10″ (25 cm) above floor level. Conversely, their highest position is approx. 16″ (40 cm) above floor level. Therefore, placing and using the machine in a room with a ceiling at least 20″ (51 cm) higher than your height is advisable.
SF-E3875 Drive and resistance
The Sunny Health & Fitness SF-E3875 elliptical machine integrates a pretty heavy flywheel. Its exact weight is not specified, but it should be at least 20 lbs (9 kg), considering the machine’s overall weight. The flywheel has a balanced structure to deliver smooth motion and a consistent pedaling feel.
It is also bi-directional, allowing you to pedal in reverse if you focus on other muscle groups.
This Sunny elliptical trainer uses a poly-v belt for its transmission. Therefore, its drivetrain does not require any periodic lubrication. It also produces considerably less vibration than a chain drive, and the usage of the machine is almost entirely silent.
The Sunny SF-E3875 features a motorized magnetic resistance system. Its main internal resistance elements are a small servo motor and a magnetic brake integrated into the flywheel assembly. Unfortunately, the motor changes the brake’s magnetic pull when adjusting the resistance, leading to pedaling difficulty.
The resistance can only adjust from the fitness monitor, and the unit requires a connection to a power source. A power adapter comes with the machine. Also, some of the programs on the monitor automatically adjust the resistance.
The trainer’s resistance system offers 16 distinct difficulty levels. The first few provide little pedaling difficulty, making them great for recovery training. Conversely, the 15-16 levels considerably increase the pedal tension, allowing you to burn more calories, reach a higher pulse rate in a shorter time, and benefit from a more consistent workout overall.
This Sunny elliptical trainer includes the same fitness monitor as the SF-E3862. It’s a mid-range monitor that provides a set of built-in programs. Unfortunately, it does not have Bluetooth or online capabilities.
The monitor has an LCD with a 6-inch diagonal and a blue LED backlight, improving the shown data’s readability. In addition, it tracks the most crucial workout metrics, including time, distance, total distance, speed, RPM, watts, calories, heart rate, and target heart rate.
The monitor is not telemetric, which means it can only read your pulse through the sensors integrated into the fixed handgrips. It cannot communicate with any wireless HR transmitters. Also, the speed and distance are in MPH and miles; there is no option to set the monitor to metric units.
SF-E3875 Workout Programs
There are 24 workout programs available on the machine’s fitness monitor, from P1 to P24. The P1 program is the Manual mode. This program allows you to exercise freely, adjusting the resistance as you like throughout your session. It also allows you to set workout goals for time, distance, and burned calories.
The programs from P2 to P13 are preset. Each has 12 profiles, and you can select up to 16 resistance levels for each. The P14 program is for Watt Control. It allows you to select a target value for your Watt output.
The P15 program is a Body Fat calculator. It will prompt you to input your height, weight, age, and gender, and based on this data, and the monitor can calculate your Body Mass Index (BMI).
The P16 – P20 are HR-based programs. They require you to use pulse sensors. P16 is a Target Heart Rate program. It allows you to select a parameter for your heart rate, and the monitor will notify you if your pulse falls below your target. The P17-P20 programs are Heart Rate Control programs with preset HRC targets at 55%, 65%, 75%, and 85%.
During any of these programs, the monitor will auto-adjust the resistance. For example, it adds intensity if your pulse falls below the selected heart rate or reduces the resistance if you exceed the desired heart rate.
Finally, the P21-P24 are Custom User programs. You can create separate workout profiles and input different user data (age, weight, height, etc.) for each. Additionally, each custom program can be saved and reused as many times as you like.
SF-E3875 Assembly and Maintenance
This elliptical trainer’s drive and resistance elements come pre-assembled, forming the unit’s main body. Also, the base of the trainer is a one-piece element. Therefore, the assembly’s primary step is to connect these two elements, then add the moving arms, the pedals, and the fitness monitor.
Therefore, it may take up to one hour of your time. However, it’s far from being a complicated task. Each assembly step is pretty clear in the manual, and an essential toolkit comes with the machine.
Internal maintenance is not necessary for this machine. Its joints may need lubrication from time to time, though. Also, keep the pedal bars’ rails clean, inspect the machine for loose parts, and retighten as needed.
- Sturdy steel construction – can support users up to 300 lbs;
- Adjustable stabilizers;
- Transport wheels on the front base;
- Lifting handle on the rear base;
- Oversized, non-slip pedals;
- Quiet operation, ideal for apartment use;
- 16 levels of eddy current resistance;
- 24 workout programs;
- Goal settings for time, distance, calories, pulse, and watts;
- Recovery function;
- BMI function;
- The fitness monitor display has an LED backlight, which considerably improves the readability;
- Pulse sensors integrated into the fixed handlebars;
- Tablet holder included;
- Bottle holder included;
- Reasonably easy to assemble;
- Little maintenance is required;
- Excellent warranty.
- The fitness monitor is not telemetric;
- Not equipped with incline;
- There is not a sound system;
- The fitness monitor does not have online connectivity.
Sunny SF-E3875 Elliptical Trainer Summary
The Sunny SF-E3875 is a mid-range elliptical trainer for home use. It features an eddy current resistance system with 16 levels and a fitness monitor with 24 workout programs. Furthermore, it has a fairly sturdy construction, with a maximum user weight capacity of 300 lbs. Moreover, it’s an excellent machine for light to intense cardio workouts, muscle toning, stamina development, and weight loss.
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Please note you should 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.