Nautilus R618 Recumbent Bike for a Healthy Spine

Guy riding Nautilus R618 Exercise Bike

The Nautilus R618 Recumbent Bike is Nautilus’s best recumbent bike in their Recumbent Homes series. The R618 is similar to the R616 model but it has extra features that clearly set’s it apart. For instance, it has ergonomically designed handlebars with the built-in resistance control buttons and it can handle a user up to 325lbs. These are just a couple of added features of the Nautilus R618 Recumbent Bike.

Nautilus R618 Recumbent Bike

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 Nautilus R618 Exercise Bike

It provides a better warranty on the frame with a 15-year warranty. There is an adjustable SightLine Dual-Mode LCD display that can be altered and tilted to give you a better view along with less glare. This model has the Nautilus Gel Seat that provides additional comfort. If you are like me, there are those days where I am into doing a long workout.

The Gel Seat will really be useful in those situations. Plus, if you have a bad back like I do the Gel Seat helps mitigate the pressure on your spine. My issues are all lower back and having the Gel Seat does make a big difference.

The Nautilus R618 Recumbent Bike does have 25 resistance levels and 29 pre-set workout options. This will add more of a variety to your workouts with some challenges.

This Bike has Bluetooth and can connect to sync up with the Nautilus Trainer 2 App for data exporting. In addition, the handlebars have quick control buttons for speed and resistance.

The improved Heart Rate Monitoring is even better with the Nautilus R618 Recumbent Bike as it is telemetry enabled and also has the contact pulse grips on the handles. There are extras like the media rack, acoustic chambered speakers, cooling fan, and so on. That is what makes this recumbent exercise bike a prime model.

You see the text "Fitness Sport Lifestyle" going around a red heart.

Having a higher capacity along with increased flexibility the Nautilus R618 Recumbent Bike is one of the top recumbent bikes on the market. It comes in at about $100 more than the Nautilus R616 model. The extended warranty alone makes it more than worth it for the additional cost.

If being able to experience professional quality cardio in your home sounds good? The Nautilus R618 Recumbent Bike is for you! Not to mention, you can use it whenever you want. There are no additional fees to pay like you do when going to the gym.  

This recumbent bike is a good fit even if you are just starting out or are a seasoned athlete that has been working out for years. Multiple people can use a single bike and can keep track of their data. It enables up to 4 user profiles to be saved and stored for future workouts and for uploading to different apps.

This recumbent bike is considered to have the most comfortable gel seats with back support making your workouts relaxed and enjoyable. There is nothing worse than a recumbent bike that does not have sufficient seat padding. I have been dealing with chronic pain for years with my back.

If I try to work out using a bike that has little to no padding, my back lets me know, and then reminds me again a couple of hours later just in case I forgot what it felt like.

There is a higher level of resistance setting along with a variety of preset programs that provide more challenging workouts when you want to take it to the next level. 

Assembly, Design, and Build

Nautilus R618 Exercise Bike

The Nautilus R618 Recumbent Bike has an Owners’ Manual that includes detailed image instructions that make the assembly go much smoother. 

The assembly process should not take more than a couple of hours. I highly suggest having more than one person assemble it. That will make the process go much easier. This recumbent bike comes with the necessary bolts, screws, and tools needed to put this bike together.

This is built with a sturdy steel frame and oversized crossbar tubing for providing greater stability. To maintain stability throughout your workout there are two integrated levelers that have a center support. This model is heavier than the R616 and R614 models weighing 107 lbs.

The bikes measurements are 48.8H x26.4W x67.3L and will support a user’s weight up to 325 lbs. They implemented transport wheels to make it mobile in the event you want to move it to another location. The handlebars are designed for efficiency and comfort along with incorporating the quick controls for speed and resistance.

It has adjustable pedals that come with straps for allowing you to maintain your feet position without slipping off while you are working out. 

Nautilus R618 Recumbent Bike Features

Resistance: The R618 uses the Eddy Current Brake System with magnetic resistance and 25 different levels to choose from giving you variety with your workouts. The control button for the resistance is conveniently located on the handlebars. This allows you to quickly adjust the settings while working out.

Seat: The Nautilus Gel Seat will make your rides feel smooth and comfortable. It has a vented back seat for helping you to rest your back comfortably, no matter how long your rides may be. The reclining seat provides the ability to make adjustments to the back support. It has an aluminum sliding rail making the adjustments easy to do.

Red and white sign that has the text "Features and Benefits"

Speed and Inertia: The Nautilus R618 Recumbent Bike has a 30-pound perimeter weighted flywheel with high inertia and high speed. The heavier the flywheel the smoother and consistent your workout will be. 

Ergonomic Pedals: The cranks with this bike are made of solid steel. Similar to the other models, this recumbent bike showcases its ergonomic pedals with straps for helping you to have stability with your feet throughout the exercise.

Capacity: The R618 model can handle the highest capacity in the R series of recumbent bikes. It can comfortably support users who weigh up to 325 lbs as mentioned above.

Heart Rate Monitoring: Monitoring your heart rate during your workouts is easy when using the contact pulse grips built into the handlebars. Even better, you can also use the telemetry-enabled heart rate monitoring system. It is a simple strap that goes across your chest strap separately.

Display: Nautilus R618 Recumbent Bike features an adjustable SightLine console with two backlit display screens. These screens provide a much better view with reduced glare. One screen is placed below the other and it makes for easy reading of your workout data for reviewing the data and your progress. Another perk with the backlit screens is always having a clear reading no matter what the lighting conditions are in the room.

"Bluetooth" in blue with a button that reads "Connect below.

Bluetooth Connectivity: You can easily connect to your smartphone with the Bluetooth Technology that’s integrated with the Nautilus R618 Recumbent Bike. You can sync with the Nautilus Trainer 2 App and other fitness apps for viewing your workout data.

Workout Programs

Built-in Fitness Programs: This R618 comes with 29 pre-set programs for working out that enable weight loss, goal setting, interval training, and cardio training. It supports up to four profiles with customizable programs.

The pre-set programs also include profile programs, heart rate, fitness tests, recovery, and quick programs. The programs provide a wide variety of challenging work out options for achieving your fitness goals.

Nautilus R618 Recumbent Bike Warranty

The Nautilus R618 Recumbent Bike has one of the best warranties you will see for a recumbent bike. This bike has a 15-year warranty on the frame, 3-year warranty on parts and electronics, and a 1-year warranty on labor.

A hand with a black marker is writing on a window. You see Pros and Cons on each side of a teeter totter with a question mark in the middle.


  • Guaranteed to give you plenty of variety with 29 pre-set workout programs.
  • You do not have to worry about “Wear and Tear” with the Eddy Current Brake System.
  • 25 Levels of Magnetic Resistance means its quiet, minimal maintenance, no dust to clean up.
  • The Nautilus Gel Seat adds much needed extra comfort.
  • Telemetry Enabled Heart Rate Monitoring Chest Strap is wireless and convenient. Not to mention its included.
  •  Pedals with Straps designed for efficiency.
  • Bluetooth Technology to Sync your work out data with Nautilus Trainer 2 and other Apps.
  • Includes a Media Shelf for a book, tablet, or other devices. 
  • USB charging port.
  • Made with Transport Wheels to make the recumbent bike mobile.


  • I think the display console could be better
  • The R618 is heavier than the R616 and R614. 

The Nautilus R618 Recumbent Bike is one of the better recumbent bikes on the market. It’s built with a very solid frame and includes several advanced features. Its features are designed for efficiencies like the additional comfort from the gel seat, the flexible handlebars, and comfortable pedals.

By adding an extra $100 to the cost of the Nautilus R616 you can get the top of the line Nautilus R618 Recumbent Bike.

Nautilus R618 Recumbent Bike Video

Comparing the Nautilus R618 to the R616

A man has a marker and has drawn on a window a teeter totter with the word "Quality" on one end and "Price" on the other.  "Service" sits in between them.

Nautilus delivers high-quality exercise bikes at low rates. The Nautilus bikes are some of the best selling recumbent bikes. They especially receive a lot of high praise for home use. 

The Nautilus R618 Recumbent Bike and Nautilus R616 both have the following:

  • Dual Backlit Tiltable Screen
  • Heart Telemetry
  • Bluetooth Connectivity with App included
  • Media Shelf (For Tablet or other devices)
  • Pulse grips
  • 25 Resistance Levels
  • 29 workout programs
  • Built-in Fan
  • Built-in Speakers
  • Water Bottle Holder
  • Magnetic Resistance
  • 3 Piece Crank
This shows the Console for the Nautilus R616 Recumbent Bike.
Console of the Nautilus R616 Recumbent Bike
This shows the Console for the Nautilus R618 Recumbent Bike.
Console of the Nautilus R618 Recumbent Bike.

Comparing Consoles

A Young Lady with her arms out to her sides with her palms face up. She has a questioning unsure look on her face.

When you look at the Consoles it can be hard to tell them apart. The design of the R618 model is a little different looking. Both of them have dual backlit displays. One of the displays will always remain visible even if you use the media shelf and have a device on it. The console has tilting abilities to get the best view solely from your point of view.

They both come packed with 29 Preprogrammed Workouts and 25 Resistance Levels. Each bike allows up to 4 Users to customize a profile. They include Bluetooth Connectivity with the Nautilus Trainer 2 APP for your tablet, smartphone, and wireless heart telemetry.

As you can see the Nautilus R618 Recumbent Bike offers several more features than the Nautilus R616 Recumbent Bike. At first glance, it may not look that way but its apparent once you look into them a little further. 

The Nautilus R618 Recumbent Bike has its phenomenal Nautilus Gel™ Seat that’s essential if you have a bad back. The warranty for the frame is an amazing 15 years! Where the R616 is 10 years but that’s not too bad either. The Nautilus 618 is a recumbent bike that has the resistance controls in the rear handlebars. They have them attached at the end of each handlebar. 

This the Nautilus Gel™ seat for their R618 Recumbent Bike.
Nautilus Gel™ seat

Not only is the R618 equipped with Bluetooth to be able to run features like the telemetry-enabled heart rate monitoring system, but it includes the wireless heart rate chest strap. In addition, you get the premium weighted foot pedals and the upgraded urethane-coated handles for durability. 

The R618 can handle a higher user maximum weight of 325 lbs and has a heavier frame to handle it. Finally, it has a longer electronics warranty of 3 years where the R616 only has 1 year.

My Thoughts

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I put the features of the Nautilus R618 and the Nautilus R616 side by side below. Both of them are great recumbent bikes but my choice the R618. Why? Their trademarked gel seat is extremely comfortable. As I mentioned, I have chronic back pain, and sitting on seats with little to no padding can be torture for me.

The extended warranty tells me Nautilus really stands behind their product and having that extra assurance in case anything happens is always good to have.

Nautilus R616 Recumbent Bike

  • Dual Backlit Screen
  • Bluetooth with APP
  • Heart Telemetry Strap Not Included
  • —————————————
  • —————————————
  • —————————————
  • —————————————
  • 3 Piece Crank
  • 29 Workout Programs
  • Max Weight: 300 lbs.
  • Media Shelf (For Tablet/iPhone/Book}
  • Built-in 3 Speed Fan
  • Built-in Speakers
  • Water Bottle Holder
  • Magnetic Resistance
  • 25 Resistance Levels
  • 10 Year Warranty on the Frame
  • 2 Years of Mechanical Warranty
  • 1 Year Electronics Warranty
  • 90 Days Labour Warranty
  • 4 User Profiles

Nautilus R618 Recumbent Bike

  • Dual Backlit Screen
  • Bluetooth with App
  • Heart Telemetry Strap Included
  • Rear Resistance Controls
  • Nautilus Gel™ seat
  • Weighted Pedals
  • Urethane Handles
  • 3 piece crank
  • 29 Workout Programs
  • Max Weight: 325 lbs.
  • Media Shelf (For Tablet/iPhone/Book)
  • Built-in 3 Speed Fan
  • Built-in Speakers
  • Water Bottle Holder
  • Magnetic Resistance
  • 25 Resistance Levels
  • 15 Year Warranty on the Frame
  • 3 Years of Parts Warranty
  • 3 Electronics Warranty
  • 1 Year Labour Warranty
  • 4 User Profiles

Which Recumbent Bike is the best one for you? If you have questions and would like information on the other Nautilus Recumbent Bikes? I do have in-depth reviews of the Nautilus R614 Recumbent Bike and Nautilus R616 Recumbent Bike.

In addition, I have reviews for highly rated Schwinn Recumbent Bikes that are very comparable to Nautilus in features and price range. Schwinn 270 Recumbent Bike, Schwinn 230 Recumbent Bike, and Schwinn A20 Recumbent Bike

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