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SereneLife SLFTRD20 Smart Treadmill

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UnitSizeSupported
weight
MotorInclineConsole
programs
SereneLife SLFTRD20

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L:50.8"
W:24"
H:49.2"
265 lbs1.0 HP,
0.6 - 6.0 MPH
Manual,
3 levels
12 programs,
2 goals,
Bluetooth,
FitShow app
compatible

The SLFTRD20 is one of the treadmills released by SereneLife in 2019. It’s a lighter and more affordable version of the SereneLife SLFTRD25 but lacks several features. For example, it has fewer workout programs, does not have a sound system and a USB port, and its motor is not as powerful. But on the other hand, it still has the Bluetooth connectivity.

Key Features and Specifications

  • Assembled dimensions: 50.8L x 24W x 49.2H inches (129L x 61W x 125H cm)
  • Tread belt dimensions: 39.37L x 15.74W inches (100L x 40W cm)
  • Assembled weight: 60 lbs (27.2 kg)
  • Supported weight: 265 lbs (120 kg)
  • Motor: 1.0 HP, 0.6 – 6.0 MPH
  • Incline: Manual, 3 levels
  • Console: 12 programs, Bluetooth, FitShow app compatible
  • Extras: Device holder, accessory holders
  • Warranty: 1 year limited

Frame construction

The SereneLife SLFTRD20 treadmill features a fairly light construction. With all the parts assembled, it only weighs approx. 60 lbs (27.2 kg). This being said, it can be carried and assembled by only one person. Plus, once it is fully set up, you can move it even easier as its front base frame features a set of transport wheels.

The machine’s frame is made of steel tubing, combining oval, cylindrical, and rectangular bars in its construction. All the steel bars are coated with a chip-resistant and rust-resistant paint finish. The color used is black. Also, the treadmill has several parts made of durable thermoplastic material in its construction. Some of the most notable ones are the covers of the side rail, the cover of the motor, and the console dashboard.

The fully assembled treadmill is not too large. Its footprint is approx. 50.8″ x 24″ (100 x 61 cm), while its highest point is given by the top of the console which reaches approx. 49.2″ (125 cm) above floor level. It is recommended, though, to leave at least two feet of clearance on each side of the treadmill, and at least three feet at the rear, for ease of access and safe usage.

Like most other light-capacity treadmills made for home use, the SereneLife SLFTRD20 has a folding frame. Its deck can be folded up to save space. The unit’s folded dimensions are 25.2″L x 24″W x 49.2″H (64L x 61W x 125H cm). Also, the folding mechanism uses a hydraulic cylinder to slowly unfold the deck in order to prevent damage.

Deck construction and incline

The SereneLife SLFTRD20 doesn’t offer a super large working area. Its belt dimensions are 39.3″L x 15.7″W (100 x 40 cm). However, it is a walking treadmill made for home use, so it should fit most users at least for walking workouts. Its internal deck board is pretty durable as well; the machine is rated for a maximum user weight limit of 265 lbs (120 kg).

The belt is multi-layered. Its top layer is rubberized to provide a superior grip. The internal rollers integrate high-grade ball bearings for a smooth motion. They are also crowned, to improve the lifespan of the belt.

The machine’s deck does not have the large cushioning elements of other, more expensive treadmills. However, its deck does integrate several small shock absorption elements which are concealed by the two side rail covers. The deck board itself also has a bit of flex. Therefore, a walk or jog on this SereneLife treadmill is less impactful on your joints.

The unit’s incline system consists of two adjustable “feet” attached to the rear part of the deck. They have three adjustment positions each. You can lock them in the desired position via a removable metallic pin. It is important to mention, though, that the deck is not perfectly horizontal when the pins of the rear feet are set to the highest position. Although this shouldn’t affect your workout much, it still adds a bit of difficulty to the ride.

The deck step-up height is approx. 6.5″ (17 cm) when the rear stabilizers are unfolded (or locked in the highest position). Therefore, it is recommended to use the treadmill in a room with a ceiling that’s at least 10″ (25 cm) taller than your own height.

Drive motor

As we’ve mentioned above, the SereneLife SLFTRD20 treadmill is a machine made for home use designed for walking and light jogging. Therefore, it is not equipped with a super powerful motor as the commercial-grade treadmills, or at least the ones made for running. It integrates a 1.0 HP motor featuring a small flywheel for motion stability.

The unit’s motor makes available a speed range between 0.6 MPH and 6.0 MPH. The speed adjustment increments are 0.1 MPH, so you can easily adjust your pace. The console offers controls for gradual speed adjustment, but also for the quick selection of 2 MPH, 3 MPH, 4 MPH, 5 MPH, and 6 MPH.

The console also has several pre-set workout programs that adjust the speed automatically if selected. The speed adjustment increments used by the console programs are 0.5 MPH. However, the transition is still pretty smooth, so you will get plenty of time to adjust your pace.

Since the treadmill is equipped with a light-capacity motor, you won’t have to worry about high electricity bills. Also, the noise level generated by the motor is pretty low. But your cadence can still be heard especially if using the highest speed setting and depending on your running technique, footwear, weight, and other factors.

Console

The console included with the SereneLife SLFTRD20 treadmill offers a fairly decent range of features. To begin with, it has an LCD display with blue LED backlight for improved readability. It tracks time, distance, speed, calories burned, and heart rate. Speed is shown in MPH, while distance is shown in kilometers. The pulse reading function is grip contact only. Therefore, the console can only read your pulse if you hold on to the metallic sensors integrated into the side grips of the machine. It cannot read your pulse from a wireless transmitter.

There are 12 pre-set programs available on the console. They have their segment grids engraved on the console, on each side of the display. As we’ve mentioned above, they adjust the speed in increments of 0.5 MPH. They have various layouts; some offer an interval workout, others gradually increase and decrease the speed, while others have a rather random structure. There is also the possibility to create workout goals for time and distance.

The console has Bluetooth connectivity and is compatible with the FitShow app, available for Android and iOS. Once you have this app installed on your phone, the treadmill can send your workout data to the app so you can keep track of your progress, review your workout history, share it via social media, etc.

The console unit doesn’t have speakers, or a workout fan, but does integrate a device holder. This consists of a long shelf under the display. Also, the console dashboard has two large bottle/device trays, one on each side of the display.

Assembly and Maintenance

The machine’s deck with the belt, motor, and incline elements, comes pre-assembled. You only have to attach the two upright bars of the machine, the handlebars, and the console. This shouldn’t take more than 30 minutes of your time. All the necessary tools are included, and the manual provides clear assembly instructions.

For maintenance, deck lubrication is necessary after the first 25 hours of use, and then after every 50 hours of use. A bottle of lubricant is included with the machine. Other than this, it is recommended to keep the machine clean, especially the belt, and periodically check for loose bolts and parts.

The Pros

  • Sturdy construction – 265 lbs (120 kg) weight limit;
  • Compact design;
  • Folding deck with soft-drop mechanism;
  • Transport wheels included;
  • Manual incline, 3 levels;
  • Speed range between 0.6 and 6.0 MPH;
  • Speed adjustment increments of 0.1 MPH;
  • Quick selection speed controls for 2, 3, 4, 5, and 6 MPH;
  • Low power consumption;
  • LED-backlit display;
  • 12 preset workout programs;
  • Target settings for time and distance;
  • Bluetooth connectivity and compatibility with the FitShow app for workout history tracking;
  • Tablet holder included;
  • Bottle holders built-in the dashboard;
  • Pulse reading function;
  • Easy to assemble;
  • All the necessary tools for assembly are included;
  • Lubricant for the deck is included;
  • Little maintenance required.

The Cons

  • A tablet placed on the device holder may partially cover the console display;
  • No USB charging port;
  • No speakers.

Summary

The SereneLife SLFTRD20 is an electric treadmill designed for home use. It is equipped with a 1.0 HP motor offering a speed range of 0.6 – 6.0 MPH, a manual incline system, and a 12-program console with Bluetooth connectivity, compatible with the FitShow app. It’s a treadmill intended for walking or light jogging, muscle toning, stamina development, and weight loss. It is also an affordable treadmill, offering excellent value for the price.

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