ProForm 400i Review

7.9 score
[Editors rating (7.9)] = ( score (7.9)/10

Editor rating: 7.9 / 10
User's rating: based on 0 user ratings
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The ProForm 400i is a great option for trained athletes as well as everyday people. Whether you are looking for somewhere to walk during cold winter months or you simply can't find time to hit the local gym, this treadmill will help keep you active. Adding a fitness machine like this one to your home gym can help keep you motivated because of the plethora of different workout routines you can choose from. While this treadmill will save some space and fit nicely into smaller areas, it also provides a large running surface. This will accommodate a large variety of users. You will be getting all of the basic and advanced features you see in treadmills that cost exponentially more than this one. In addition, it can handle quite a bit of weight. Users, up to three hundred pounds, will have no worry of causing detriment to the quality of this item, even if they use every day. The latest model of this treadmill came out in 2019 and offers better features than its predecessor. With an upgraded screen and a free one-year membership to iFit, this item will keep you challenged and driven toward becoming more physically fit. So, no matter what you are striving towards, be it weight loss, endurance building, or strength improvement you will see more success when pairing your routine with this option by ProForm.

Editor's Pros & Cons
  • 1 Year iFit Membership
  • Touch Screen Display
  • Large Running Surface
  • Huge Program Variety
  • Cushioned Run
  • In Console Speakers
  • Aux Port
  • Space Saving
  • No Fan
  • Difficult Assembly


ProForm brand came to fruition thirty years ago. This brand has been a leader in the fitness industry due to the fact that they offer high-quality options to meet a variety of needs. Spending a lot of time working the latest technologies into their products you will be able to find truly advanced options. Bikes, treadmills, elliptical machines, and more can be found with a variety of different aspects and price tags when you look towards this brand. Consumers are exceptionally happy with the customer service that they have gotten when trying to deal with issues with their products. When you continuously work on becoming your best self that includes adding great fitness equipment into your routine. When you pair the items seen from this brand with a healthy diet and an active lifestyle you will find that meeting your weight loss, muscle growth, and improved motivation goals more easily achieved.

Basic Features

This product does carry most of the basic features that you come to expect in best treadmills. Unfortunately, it is also lacking a couple that consumers Miss while using it. It does provide you two convenient locations to hold your water bottle. In addition, there are two different sets of handlebar so that if you want to hold on while using this machine you'll be able to find a comfortable position. Naturally, it has an emergency Stop Key which can help keep your little ones safe while this item is not in use. Without the emergency stop key, this treadmill will not function. One of the features that it is lacking is a fan. Many consumers prefer to have a fan blowing on them when they are working through a sweaty routine. The fact that this product doesn't have one is a minor inconvenience. You also get simple push button adjustment for your speed and you're inclined. In addition, when choosing programs you can also do that at the touch of a button.

Advanced Features

You'll be getting quite a few advanced features when you decide to make this treadmill your own. It does have built-in pulse sensors which will allow you to the that will help you meet your goals whether they are weight loss, strength improvement, or fat burn. This item also has a 7-inch touchscreen display. This gives you excellent connectivity and a plethora of different programs to choose from. When you can change your routine up daily it can help give you the drive and motivation to continue working on meeting your most far off goals. You will also have access to a device holder. Here you can place your tablet which in turn will allow you to watch TV or your favorite movie while working out. There are also in console speakers and an AUX Jack. If listening to music is what you prefer while you're working out you'll be able to do it easily with these two features. On top of all of this, this product does have excellent shock absorbers built into the belt. This leads to better comfort and less pain felt by your body after long workouts.


Whether or not a treadmill offers incline can make or break it for many users. There are options out there that use a manual incline and that can be very frustrating if you like to be able to change this aspect throughout your session. This product has an automatic incline. Not only that, but it is also motorized. There are 10 different levels of incline. the most advanced treadmills offer up to 15% incline so, some of you may not find that a 10% incline is enough to truly challenge. You will be able to easily change the incline setting from two different areas. You can do it at a push of a button in either position. Either go up one at a time with a plus or minus button or choose any level 1 through 10 located right underneath the console. Overall, the incline of this product offer should provide any user with a significant challenge and an excellent workout. This is especially true when paired with the higher rates of speed at which this product can function.


You'll be getting a fairly good level of comfort while using this treadmill. It is important to note that the lack of a cooling fan does decrease the level of comfort you'll get during use. It can lead to exceptionally hot and sweaty workout and may require you to move a fan into your home gym. One of the aspects that help to keep your run comfortably with this product has to do with the belt. It has a cushioning system built into it that will help reduce the shock that your body absorbs. This will leave you with better feeling muscles and joints regardless of how far you decide to walk or run. Another aspect that consumers feel add to the level of comfort they get while using this item is the multiple hand grip positions. Not only are there rails to the side but there are also handles to the front of this treadmill. This makes many people feel more comfortable and safe while using a product like this one.


The variable rate of speed that this product offers is controlled by the motor. You'll be able to find a good challenge regardless of your fitness level. While starting out you'll be looking at about a half a mile an hour you can increase this up to 10 miles per hour. So, those of you that are truly looking for a grueling challenge can crank up the speed in the incline to find the perfect level of work. On the opposite side of that if you are just starting out on your fitness journey the fact that you don't have to worry about great rates of speed or incline it all is a good place to start. Due to the fact that this item does offer quite a wide range of speed and incline options, it will do well for most users for years to come. Overall, customers are pleased with the transition between speeds.


While this product does offer many of the features of gym-style or club-style treadmills it is not nearly as large. It is big enough to offer most people a comfortable walk or run as the belt is quite large. The length of this item comes in at almost 66 inches. This is quite a bit shorter and many other treadmills which will make it a better fit in cramped spaces and small home gyms. The width of this item is also a tad smaller and comes in at almost 33 inches. in terms of height, this product is actually pretty tall coming in at almost 57 inches. This does not usually play a major role in whether or not it's going to fit in your space. Users up to 300 pounds can safely walk or run on the treadmill without worry of damaging it.


While some customers say they don't have any trouble at all getting this product together more of them are stating that it is a bit difficult. The instructions are not quite as clear nor are the diagrams while laid out which can lead to a frustrating assembly process it has been noted that there are not a plethora of pieces but getting them all put together correctly will take a few hours of your time. If you really struggle with putting things together you may want to consider shelling out the money for expert assembly. With patience and a decent amount of time, we do believe that most people will be able to get this product to put together and functioning correctly. Most treadmills, including this one, that offer a wide variety of features tend to come with more cables and this is where people really struggle is getting the console setup correctly. Here again, you will want to take your time to ensure it all goes together correctly. If you are really struggling and don't want to pay for expert assembly there are some great tutorial videos online.


One of the biggest advantages in purchasing this treadmill is the ability to keep your routine interesting and full of variety. The console offers 50 pre-programmed options to choose from. Not only that but with the iFit membership, you'll be able to access many more programs. When you work out consistently it can become very boring and this, in turn, can lead to unhealthy choices. The fact that this product gives you so much variety means that you will be able to stay invested and working towards your health and fitness related goals. Using a treadmill on a frequent basis can improve your cardiovascular health. In addition, it can help you lose weight and build muscle. If you love to participate in sports or activities like boxing and wrestling having a strong running routine is important. When the weather will not affect whether or not you get your run in it plays a major impact and improving your performance during all the activities you like to participate in.


We were surprised at how few disadvantages we found when reviewing this product. Honestly, the couple negatives we did find our more of an inconvenience than anything else. The first thing we found that customers are really not pleased with the fact that this product does not have a built-in fan. While we understand this can be a frustration we don't feel as if it is a deal-breaker. Frankly, most built-in fans are not very powerful and would require you to use a different one anyways. The other piece that consumers are not thrilled with is the assembly process. It can be quite lengthy and difficult. This may lead to frustration or a non-working unit. Most issues can be easily handled with the customer service department but that is extra time that you'll have to put forth before using this product.


This product is a very good value. The price tag that it carries is exceptionally lower than others that carry the same sort of features. You may still have to take a little bit of time to save up enough money to call this item your own but it will not take nearly as long as it would with many other options. Consumers are very pleased with the value that this product has brought to their homes and their routines. This item is exceptionally easy to use and offer such a wide variety of workout options that it will help to keep you invested in becoming healthier. When you can't get outside to run due to poor weather or a hectic schedule this is a great option. When looking over all of the different aspects it is easy to see why so many feel that this item is such a great value.

Bottom Line

While this item may be lacking a couple of the features we come to expect with higher-end treadmills it does cover most of them. Add to this the fact that the price tag is significantly less and we can understand why so many people have wanted to add this item to their home gym. With continuous upgrades, we expect to see products from this brand get better and better. This item in itself is a perfect example of this. It will keep you connected and give you excellent aspects for convenient routines. They have done a nice job of parenting today's technology with a solid piece of fitness equipment. It won't take up as much room as other treadmills you may have been looking into and that is awesome if you have several pieces of new gym equipment that you want to add to your area. Overall, customers are very happy with their purchase of this item and we believe that you will be too.