ProForm 520 E vs Nautilus E616
ProForm Endurance 520 E vs Nautilus E616 Features Overview
In this comparison, we will be comparing two popular ellipticals the ProForm Endurance 520 E and the Nautilus E616. Here we list both ellipticals main features before getting into our in-depth side by side comparison.
ProForm Endurance 520 E Key Specs
- 18 workout programs
- 19″ stride length
- Manual incline
- 18 levels of resistance
- 300 Lbs max. weight capacity
Nautilus E616 Key Specs
- 29 workout programs
- 20″ stride length
- Motorized incline
- 25 levels of resistance
- 300 Lbs max. weight capacity
Reasons to choose ProForm Endurance 520 E over Nautilus E616
Quick Controls |
YesvsNO | Ellipticals with quick controls are easier to use and you can focus on your workout more |
Reasons to choose Nautilus E616 over ProForm Endurance 520 E
Resistance Levels |
25vs18 | How many adjustable levels of resistance you can get between the maximum and minimum values |
Maximum Stride Length |
20″vs19″ | Stride length is how far the pedals separate from each other. Most ellipticals have a stride distance of between 16 and 22 inches. |
Bluetooth Connectivity |
YesvsNO | Bluetooth connectivity makes it easier to sync your elliptical trainer with fitness tracking apps |
Cooling Fans |
YesvsNO | Fans help keep you comfortable so you can train harder |
Number Of Programs |
29vs18 | Different workout programs help you accomplish various fitness goals. |
Common Strengths of ProForm Endurance 520 E and Nautilus E616
Max. User Weight |
300 Lbsvs300 Lbs | Maximum user weight the elliptical can handle, usually more weight capacity means more durable design |
Incline |
YesvsYes | You can have more intense workouts if the elliptical can incline, some ellipticals have motorized incline so you can adjust it from console |
Accessory and Device Tray |
YesvsYes | You can put your phone or tablet which is safer and more comfortable |
ProForm Endurance 520 E vs Nautilus E616 Consoles and Workout Options
The E616 has 29 workout programs, while the ProForm Endurance 520 E has 18 programs.
The 520 E has a 5″ Backlit LCD workout display and the E616 has a 2 Blue Backlit LCD workout display.

ProForm Endurance 520 E vs Nautilus E616 Pedals
Here are side by side comparison of the pedals of each machine. The ProForm Endurance 520 E has Oversized & Cushioned pedals and the Nautilus E616 has Cushioned & Adjustable pedals. The 520 E has a maximum 19 inches stride length while the E616 has a 20 inches max. stride length.

ProForm Endurance 520 E vs Nautilus E616 Specs Table
| Feature | ProForm Endurance 520 E Specs | Nautilus E616 Specs |
|---|---|---|
| Type | Elliptical Trainer | Elliptical Trainer |
| Number of Programs | 18 | 29 |
| Bluetooth Connectivity | ||
| Display | 5″ Backlit LCD | 2 Blue Backlit LCD |
| Pedals | Oversized & Cushioned | Cushioned & Adjustable |
| Stride Length | 19″ | 20″ |
| Incline Type | Manual | Motorized |
| Incline Levels | 0 – 20 Degrees | 0-11 Degrees |
| Resistance Type | Silent Magnetic | Eddy Current Braking |
| Resistance Levels | 18 | 25 |
| Heart Rate Monitor Type | EKG Pulse Grips | Contact And Telemetry Enabled (chest strap included) |
| Articulating Footplate | – | |
| Accessory and Device Tray | ||
| Flywheel | 16 Lbs | Perimeter weighted flywheel |
| Max User Weight | 300 Lbs | 300 Lbs |
| Cooling Fans | ||
| Folding | ||
| Quick Controls | ||
| Dimensions (W x L X H) | – | – |
| Manufacturer | Link | Link |
| See Price at Amazon | See Price at Amazon |


Quick Controls
Resistance Levels
Maximum Stride Length
Bluetooth Connectivity
Cooling Fans
Number Of Programs
Max. User Weight
Incline
Accessory and Device Tray


