Horizon 7.8 AT Treadmill Review

Horizon 7.8 AT

Horizon continues to push for more premium treadmills. The brand’s new 7.8 AT treadmill came out in October 2019. It boasted a few improvements over its predecessor models. The 7.8 AT is a bit more expensive than the new 7.4 AT treadmill but offers some upgrades that make it worth its $400 increase.

The 7.8 AT treadmill’s biggest upgrade is the 9.3-inch full-color display screen. This screen is a vast improvement over the previous LCD screens. It can still be used to view interactive training programs, but it displays all your running/workout data in a clear and crisp manner. Similar to the 7.4 AT’s display, there is a platform above it for users to rest their tablets or smartphones, if they wish to follow along with the video training program.


  • Star Rating: 4.85-stars
  • Motor: 4.0 HP
  • Incline: 0-15%
  • Running Area: 22″ x 60″
  • Folding: Yes
  • Top Speed: 12 MPH
  • Weight Capacity: 375 LBS
  • Dimensions: 76″ L x 37″ W x 64″ H
  • Built-In Programs: 10

What We Like:

  • Bright and legible screen — This new 9.3-inch LED/TFT screen is a significant improvement on the previous versions.
  • Easy-to-use speed and incline controls in roller style: We love these controls for the 7.8 AT treadmill. You can adjust your belt speed or incline quickly and without thinking. These controls are very rare in the treadmill world.
  • Extra large running track: Measuring 60 in. long by 22 in. wide, the running belt of the 7.8 AT treadmill measures two inches wider than the one on the 7.0 AT. This treadmill is ideal for heavier and taller runners.
  • The motor of the 7.8 AT treadmill is powerful and has “Rapid Sync”. Designed specifically for HIIT, it accelerates and decelerates significantly faster than the rest.
  • Bluetooth heartrate monitoring: Horizon Fitness comes with a Bluetooth wireless chest band.
  • Built in Sprint 8 training program: High intensity interval training (HIIT), is a popular form of training. Horizon is one the few manufacturers that integrate HIIT-specific programs into its treadmills. One of the most popular HIIT programs for runners is the Sprint 8.
  • Get a discount on training app rates: Horizon has been able to offer its customers discounts up to 30% on a range of fitness apps as part of its push for compatibility. The treadmill is compatible with many programs and offers great third-party app compatibility.
  • Warranty: The lifetime frame and motor warranty are great. There’s also a 2-year labor and parts guarantee.

What we don’t like:

  • You will still need a tablet to take advantage of the clever app integration.
  • Strong competition — The NordicTrack 1750 is the best value at this price. Other products offer more features for a lower price.
  • The treadmill 7.8 AT does not have any built-in programming.
  • Maintenance costs — Using an app to train rather than a built-in program will mean that you will have to pay ongoing fees for the treadmill.

The Horizon 7.8 AT treadmill is a continuation of everything we love about our 7.4 AT. It ticks all the right boxes when viewed strictly from a running perspective. The deck is larger than the standard running deck. This makes it ideal for intense training. However, it’s not required for those who want to walk or run. It can reach speeds of 12 mph with a maximum incline of 15°, which is enough to keep you moving at a fast pace and burn lots of calories. Although this unit has been upgraded to a continuous-duty horsepower motor (4.0 CHP), the output is unchanged.

The 7.8 AT’s screen change is what makes it stand out from its less expensive sibling. The LED/TFT screen is a significant improvement in legibility. Its white counters are easy to read and the green/yellow/red graphed indications stand out making it easy to see at a glance. This screen is fantastic on its own but when you look at the competition priced in the low-$2k range, it all falls apart. Nearly everyone in this price range offers a full-color, high definition touchscreen display. You can put your tablet on the shelf, but it doesn’t really matter if the display screen isn’t there.

The grip-mounted roller controls for speed/incline are extremely practical and efficient, no matter if you’re doing intervals or simply want to adjust your speed and incline as needed. These controls are very intuitive once you get the hang of them.

Remember that the treadmill weighs in at 330 lbs. This means that some assistance is required when setting it up. The 3-Zone Variable Response cushioning system has been shown to reduce the impact on the spine and joints. This cushioning system offers unique support in the front, middle and end zones of the running surface to allow runners to adjust to their stride. FeatherLight Folding allows you to lock and unlock your treadmill safely and easily while it is being stored away. The treadmill has a single fan system for comfort. It might not be enough for all users, especially those who are taller than 6′.

The Horizon 7.8 AT is one of the quietest units on the market. It generates 65 decibels at 3mph which is equal to normal conversation. Although the NordicTrack 2450 is only 58.7 at maximum speeds, both units are the quietest on the market in terms of noise.

Sprint 8 Training:

Sprint 8 is a modified version of HIIT that Johnson Health Tech, the parent company of Horizon Fitness, has developed. It consists of a 20-minute warm-up, followed by intense 30-second sprints. Then comes a 90-second active recovery period. Finally, there is a 2.5-minute cool-down. According to the brand, significant body fat loss can occur in as little as 8 week if you run the Sprint 8 program 3 times per week. More information can be found here.

Our Verdict:

We think the 7.8 AT treadmill is a solid choice when compared with the competition and Horizon’s new 7 AT treadmill. The 7.8AT is a great choice if you want to keep up with Peloton classes and without paying a Peloton price. You could also choose to spend less and get the 7.4 AT or look at other options near $2k from our list runners treadmills.


Horizon’s fastest treadmill, the Horizon 7.8AT, will help you achieve your fitness goals. You can connect directly to your favorite workout apps like Zwift and Peloton or the integrated Sprint 8 HiIT program. This sounds like the perfect addition for your home gym. You’re in luck. One lucky reader will win a Horizon 7.8AT! To enter the giveaway, please fill out this form.

Read review:

-> 10 Best Horizon Treadmill Reviews

-> NordicTrack T 6.5 S vs. Horizon T101: Finding the best low-cost treadmill

-> Sole F63 vs. Horizon T303: Which one to choose with a tight budget?


1. Is the horizon 7.8 at easy to assemble?

Yes, the Horizon 7.8 AT is very easy to assemble. You can assemble the Horizon 7.8 AT with just one person or two. Horizon offers an in-home assembly service for an additional fee.

2. Can you use the horizon 7.8 at with the peloton app or any other fitness app?

You can stream any fitness class and keep track of your heart rate using Bluetooth connectivity. The integrated speakers and Bluetooth connectivity allow you to do this. Studio, Peloton and AFG are just a few of the apps that will work with this treadmill.

3. Does the horizon 7.8 at come with built in workout programs?

Yes, the Horizon 7.8 AT comes with 10 workout programs.

4. Does the horizon 7.8 at have wheels?

Yes, the Horizon 7.8 AT comes with wheels so that it can be folded easily.

5. Is the horizon 7.8 at treadmill easy to move around once it’s assembled?

The machine weighs in at 330 lbs and can be quite heavy depending on your strength. It folds up well enough to be folded and can be rolled.

6. Is it difficult to assemble the horizon 7.8 at treadmill?

Not at all. Despite its size and weight, we found it quite easy to use.

7. What are the main differences between the horizon 7.4 at and horizon 7.8 at treadmills?

The 7.8 AT’s LED/TFT screen is 9.3 inches, while the 7.4 AT’s LCD screen is 8.25 inches. The 7.8 AT has a 4.0 HP motor, whereas the 7.4 AT has a 3.5 HP motor.

5/5 - (1 vote)

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