NordicTrack S 45i Treadmill – Review + Cheapest Price [2024 UPDATE]

NordicTrack S45i Cheapest Price
ProductPrice CheckOriginal PriceDiscounted Price
Check the JTX SALEGTR price checkingFROM £1,499CLICK HERE
Read more customer reviews here – Review stars 4.5 out of 5 (63)

First impressions of the NordicTrack S 45i Treadmill

NordicTrack are fast becoming one of my favourite brands in the at-home treadmill category. With a reputation for not only looking great but also performing great, you get what you pay for when you invest in a NordicTrack treadmill. The S45i carries on this trend and then some more!

With a very generous max running speed, varied incline settings and access to the iFit workout catalogue, this treadmill is all about providing the user with choice and variety. The 10-inch HD console makes keeping track of your workouts simple and clear and the foldable sturdy frame coupled with a wide running belt, keep running comfort at a maximum.

Tipping the price scale at an above market average of just under £1,500, this treadmill does stretch the purse strings, but if you want premium quality and have that bit extra to spend, then the NordicTrack S45i may just be the treadmill for you.

NordicTrack S 45i Treadmill Review


The first thing to note is that the S45i is quite a sizeable piece of kit. Built to replicate that gym quality treadmill but in the comfort of your home, the S45i weighs in at a sizeable 88kg (13.85 stone). With this in mind, I would definitely recommend having two people assist with the set-up and when it comes to moving the treadmill around.

It does come with fairly straightforward instructions, however if you do have any issues when it comes to assembly, there are plenty of ways to get in contact with NordicTrack through their website.

Once assembled, the EasyLift assist means the treadmill can fold up after your run for compact, simple storage, which is always handy for those tight on space.

Overall unfolded dimensions for the S45i are 203x91x225cm (L x W x H) and folded dimensions are 98x90x170cm (L x W x H), so keep these figures in mind when choosing a place for your treadmill, as due to the size and weight of the S45i, you won’t want to have to keep moving it room to room to work out.


Where the S45i excels is in the performance features available. The enormous 3.0 CHP motor results in a max speed of 22km/h, meaning this treadmill can keep up with even the more experienced and elite runners.

If you are also looking to add incline variety to your workouts, the NordicTrack S45i offers up to 12% incline, which should be enough to get anyone sweating.

Settings can be changed at the touch of a button thanks to the quick keys for both speed and incline, allowing for adjustments on the go with minimal effort.

Build Quality

As mentioned, NordicTrack have built a reputation for producing high quality pieces of gym equipment.

The spacious 51 x 140cm tread belt is designed to provide your legs a landing surface with more give, which enhances comfort and reduces injury.

The powerful motor also reduces vibration, so you can focus on the run and not have to worry about the impact on your joints or feeling cramped on a smaller treadmill.

The large and sturdy frame, mean the S45i treadmill feels very stable and balanced to run on and with a max user weight of 135kg, the S45i is accessible for a wide variety of users and caters for all types of runners from the beginner to veteran.

The overall look and feel of the treadmill are also big plusses in my book and really help to create a lasting impression of high-quality assurance.


The NordicTrack S45i comes with a very large 10-inch HD touch screen display, making it very easy to swipe through and view your workout stats, such as time, distance, calories and speed.

At 10 inches, this puts the S45i display console on the larger end of the spectrum for at-home treadmills and allows workout progress to be clearly visible.

There are also two built in speakers, ideal for listening to music or following along with a workout.

For those familiar with NordicTrack treadmills, you’ll be aware of the iFit integration capabilities. iFit is a yearly subscription service, which grants members access to a huge array of workouts and an online fitness community.

You can automatically track your progress, enjoy real-life runs with Google Maps and journey through stunning scenery, which look fantastic on the 10-inch display screen.

You can also compete with your friends and custom fit your training to your specific goals.

You’ll also have access to professional iFit Trainers, where you can follow along with workouts, providing the gym class experience but in the comfort of your own home. I’m a big fan of the extra motivational boost iFit provides and workout out consistently, has never been easier.



  • 10-inch HD screen
  • 1 Year iFit membership
  • Reduced Vibration
  • 0 CHP Motor
  • Foldable for storage
  • Dual speakers
  • Self-cooling Autobreeze fan
  • Digital QuickSpeed control
  • Wide tread belt
  • 22km/h max speed
  • Max user weight of 135kg (21 stone)


  • Upper end of the price spectrum
  • A little fiddly to assemble
  • Heavy to move around at 88kg (13.85 stone)

How does the NordicTrack S 45i compare to the S 20i?

The S45i is much like the older sibling of the S20i treadmill, where it comes in at nearly double the price. What you get for this extra money is a more powerful treadmill, designed for the more experienced runner. This is due to the S45i’s larger 3.0 CHP motor compared to the 2.5 of the S20i.

This larger and more powerful motor means the overall running smoothness is slightly better and the max speed is at 22 km/h compared to the 18 km/h of the S20i. There is also a slightly larger incline capacity at 12%, compared to 10%.

In terms of build quality and features, both treadmills are very similar. Both offer the iFit integration, wide running belt, ability to fold and QuickSpeed controls.

Where the S45i beats the S20i, is how the display screen is twice the size at 10 inches compared to 5 inches. This makes quite a big difference when tracking data or using the video features, where you can feel a lot more immersed in the workout.

In terms of choosing which treadmill to go for, it all comes down to what you want out of a treadmill. If you are a beginner to intermediate runner, then I would recommend going for the S20i, however if you are looking to really stretch yourself and want the extra speed and incline abilities, as well as knowing you’ll really engage with iFit and making the most out of the larger display screen, then the S45i might be worth the extra money.

Still thinking about it? You can find out more information about the NordicTrack S 20i Treadmill in our full review.

2024 Review update

Although NordicTrack have a new range of treadmills available. They still sometimes have spare stocks of the S45i at discounted prices and if you get the chance we would advise snapping them up.

With premium internal components, good support and a whole range of features, you are getting a gym quality treadmill at a fraction of the price.

Final thoughts on the NordicTrack S 45i Treadmill

With high design and build quality throughout, coupled with a wide variety of performance features, which can keep up with runners of all abilities, the NordicTrack S45i is a brilliant at-home treadmill.

It really does bring a commercial gym quality feel and look, although at 88kg, it is quite a sizeable and heavy piece of equipment.

The iFit integration is a real plus and the user’s comfort is considered throughout. The price tag is quite steep, so carefully consider if you think you’ll get the most out of the extra speed and incline the powerful motor provides.

NordicTrack S45i Voucher Code
ProductPrice CheckOriginal PriceDiscounted Price
Check the JTX SALEGTR price checkingFROM £1,499CLICK HERE
Read more customer reviews here – Review stars 4.5 out of 5 (63)


Build Quality
Value for Money


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NordicTrack S45i Cheapest PriceProduct Price Check Original Price Discounted PriceCheck the JTX SALEFROM £1,499 CLICK HERERead more customer reviews here -  (63)First impressions of the NordicTrack S 45i TreadmillNordicTrack are fast becoming one of my favourite brands in the at-home treadmill category. With a reputation for not...NordicTrack S 45i Treadmill - Review + Cheapest Price [2024 UPDATE]