Proform 505 CST vs Nordictrack T 6.5 S

Running is a great method to stay fit and to burn excessive calories when you need to lose some pounds. We can go to the gym or run outdoors but you can also buy a treadmill like ProForm 505 CST Vs NordicTrack T 6.5 S to exercise at home conveniently. These treadmills are very affordable as well for prolonged use and already coming with all of the basic features. If you are also considering buying one of the two, see below about which will be the better option.

In this article, we are going to give you information about:

  • Which is Better Between Indoor and Outdoor Running
  • What are ProForm 505 CST and NordicTrack T 6.5 S
  • How are the Design of ProForm 505 CST and NordicTrack T 6.5 S
  • How are the Motor of ProForm 505 CST and NordicTrack T 6.5 S
  • How are the Running Space of ProForm 505 CST and NordicTrack T 6.5 S
  • What else ProForm 505 CST and NordicTrack T 6.5 S can offer
  • ProForm 505 CST Vs NordicTrack T 6.5 S

Running Indoor and Outdoor

Exercise is very healthy in general when done in moderation and properly to prevent and related injury. However, since we are putting our body at stress during the process, it may need to take a while to get used to. This is why it is recommended to choose a type of exercise that is matching with your lifestyle or you like the most because it will have a higher chance to become a habit and make the exercise more effective. Among all popular exercises, running is probably the most convenient. Read also: ProForm 505 CST Vs Carbon TL.

However, this exercise requires a pretty large space to do and naturally an outdoor activity yet, since treadmill was invented, running indoors has become a great alternative as well. Even today, there is still debate about whether treadmill is an effective training method compared to running outdoors but the two are actually just the same. There is no one better than the other and both have their own advantages and disadvantages to consider.

The most important point is probably the perceived effort because we all know how the more effort we put the more energy we spend. Athletes will be able to get the same workout whether they are running on a treadmill or on real terrain with a note that they are spending the same level of effort. The tricky part is this effort will be very difficult to measure and is variable as well. In general effort can be perceived with heart rate yet this can be subjective too.

If we want to be objective, the outdoor running is probably will cause a greater effort however because even when we are running with the same speed, the outdoor running will have different terrain and elevation which is increasing the effort to run but also because the running belt of treadmill is forcing you to move forward while outdoor we are moving on a fixed ground. To compensate this treadmills are featured with an incline running belt so then we will need more effort to climb.

On the good side, a treadmill is just completely convenient for exercise because first, they are indoor means we don’t have to worry about the weather since we can run in any season and anytime as well when you have a free schedule. Second is the feature because most models are coming with various exercise programs that are designed to increase fitness and level. Third, we can adjust the speed level to match with your goal and level of fitness.

 Proform 505 CSTNordictrack T 6.5 S
Best offerCheck priceCheck price
Product Dimensions73.5 x 36.5 x 61 inches75 x 27 x 10 inches
Shipping Weight203 Pounds125 Pounds

About ProForm 505 CST and NordicTrack T 6.5 S

If you are here then we assume that you are also currently looking for a new treadmill for home use and this is a great idea to improve fitness especially for those who can’t get out of the house often such as parents with small children or if you have a very busy lifestyle. Treadmills in general are going to be the same but the more you spend the more as well we can get from the machine such as a higher motor or more features that can improve the experience.

Usually entry-level models can cost around $1000 where it should be safe to choose but still affordable for many of us and we also recommend to invest more if the equipment will be used by various people in the house, for its longevity. For those who want to save some budget, ProForm and NordicTrack are going to be two ideal brands to consider. The two often have affordable models that you can rely on too while not abandoning the features and reliability.

If you are planning to spend less, the ProForm 505 CST and NordicTrack T 6.5 S are two ideal options with a very affordable price point. They are not exactly the same however so there are some differences that keep these models from different brands apart yet in general, you can run really well with any of them. Just like most treadmills, they can take up quite a weight and can go pretty fast as well with speed adjustment to match your fitness level.

From the price point of view the T6.5 S is very affordable and in comparison the Si model is probably what’s closer to 505 CST from ProForm. What’s impressive is with such a huge price gap this treadmills is very similar to models that come twice its price both on the speed range and on the built-in program which makes it a great addition in your shopping list. In comparison ProForm 505 CST and NordicTrack T 6.5 S are also very much the same to each other when it comes to what they can offer.

ProForm 505 CST and NordicTrack T 6.5 S Design

If you have used an entry-level treadmill before, chances are these two will look just the same to them. It is pretty basic in terms of built quality as well as how they are styled; you get what’s crucial for a treadmill both handle shape and an inclining control panel to allow for an ideal viewing. You may just put a tablet on their control panel since the display is only viewing information. The control panel however is convenient and easy to understand with separate buttons for separate functions.

If you are worried about ProForm 505 CST and NordicTrack T 6.5 S taking up much space in the living room, we can just fold them when not being used for both and are made with a foldable design. In addition there are two wheels at the front that can help move the treadmill when you need to transport it to another spot. The unit weight itself is slightly above 200 pounds and the material seems robust to sustain the weight limit of 325 and 300 lbs. respectively.

ProForm 505 CST and NordicTrack T 6.5 S Motor

Now moving to the most important part, let’s see what ProForm 505 CST and NordicTrack T 6.5 S can offer and starting with the motor first, they are adequate for a light to medium use or just typical indoor exercise. Usually a treadmill in this price range will have a 2 CHP motor and this is what you can get from the two as well since they are respectively built with 2.5 and 2.6 CHP motors. This power is pretty decent however and can provide enough capacity for the weight and speed.

As for the speed limit itself, both are adjustable just like in any treadmills so we can maintain the step by step to get used to the exercise. However, for a lower motor, the maximum speed of these models are at 10 miles per hour and while for some this may sound not fast enough, we do think it is already fast pace for typical daily exercise.

ProForm 505 CST and NordicTrack T 6.5 S Running Belt

Moving forward, let’s see how the running with ProForm 505 CST and NordicTrack T 6.5 S are but again, the two are very much the same here. Just like with most entry-level options, the space for you to run is quite long at 20 by 55 inches and should be enough for adults with moderate height and weight to run on too. This belt is suspended with several springs below to cushion the impact and make the run even more comfortable.

To make sure you can increase the effort when exercising, we can increase the height of the treadmill or incline up to 10% from the normal level thus, our body will spend more effort and energy to finish the exercise. 

ProForm 505 CST and NordicTrack T 6.5 S Programs

Last is about their program which is also accessible from the control panel. On high-end options, there is probably an option to connect the equipment to a fitness app but sadly none of ProForm 505 CST and NordicTrack T 6.5 S are offering such convenience. Yet, the built-in programs should be enough for typical daily exercise and as you can guess, there are also plenty of them here or at 18 and 20 programs that adjust the speed and incline according to the design.

Proform 505 CST vs Nordictrack T 6.5 S

Both of them are good options on the budget range and even being a much cheaper choice, the T series of NordicTrack is very reliable too. The two have similar motors, built quality, speed range, program, as well as incline level, making it a bit difficult to set apart. However the display panel of T 6.5 S and its buttons layout seems to be more pleasing to use and see.

- Discover Trainer-Led Workouts; A 30-day iFit trial membership gives you access to interactive training sessions, on-demand studio & global workouts, and connected fitness tracking in your home
- 5” Backlit Display; Track speed, distance, and estimated calorie burn; Integrated Tablet Holder; Stream interactive iFit workouts to your own smart device to stay engaged and motivated as you train
- Self-Cooling Mach Z Drive System powers sustained speed, interval, and endurance cardio training; Trainer-led 0-10 MPH - Digital QuickSpeed Control and 0-10% Digital Quick Incline Control
- 20” x 55” Tread Belt recommended for users under 6’2”; ProShox Deck Cushioning protects your joints for a more comfortable run and recovery; Dual 2” Speakers and Auxiliary Port for entertainment
- Bring Home Interactive Personal Training powered by iFit; 1-month individual membership included; Experience live, studio, and global workouts in the comfort of home; Trainers lead your exercise
- 10 % OneTouch incline control; 10 MPH SMART OneTouch speed control; With iFit, your trainer auto-adjusts your speed and incline through a smart Bluetooth connection
- SMART-Response Motor for effective speed, interval, and endurance training; 20” x 55” tread belt offers plenty of leg and elbow space as you run; FlexSelect deck cushioning protects your joints
- Innovative SpaceSaver design with EasyLift Assist means your treadmill can fold up after your run for compact, simple storage; Auxiliary music port and dual 2-inch speakers provide entertainment


All in all you can go amazing with any of the two but comparing all of the capabilities and price point, we recommend getting the NordicTrack T 6.5 S which is not only cheaper but also comes with everything in the more expensive treadmill.

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