Horizon 7.8 AT Treadmill

horizon 7.8 at treadmill product photo
horizon 7.8 at treadmill product photo
product photo horizon 7.8 treadmill display

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  • 60-inch running deck
  • Deck cushioning
  • 375 maximum user weight limit
  • Powerful rapid sync motor
  • Top speeds of 12 mph
  • Incline training up to 15%
  • Quick-dial controls
  • Compatible with popular fitness apps
Manufacturer: Categories: ,

In-Depth Review

Horizon 7.8 AT Treadmill Review (2024): High Speed Durability

Horizon 7.8 AT Treadmill Review (2024): High Speed Durability

At $2,000, is this machine worth it? Find out in our Horizon 7.8 AT Treadmill review. Read the full review.

Pros & Cons

What we like ...
  • Stream various fitness platforms
  • No subscription required
  • Dial controls are great for interval training
  • Larger running deck
  • Highly-responsive motor
  • Financing options
  • Lifetime warranty on frame and motor
What needs improvement ...
  • Weighs 330 lbs, so not easily portable
  • While you can sync with external apps, the 7.8 AT requires a smart device to provide touchscreen content, videos or online classes

Product Summary

One of the most respectable treadmills in Horizon’s lineup is the Horizon 7.8 AT, the highest-grade model in the Studio Series. This treadmill features impressive specs, including a 22-inch-by-60-inch cushioned running deck, a powerful 4.0 CHP motor, a colorful 9.3-inch monitor, integrated speakers for an immersive experience, a rapid-charge USB port, and an included Bluetooth 4.0 heart rate strap. 

With the 7.8 AT, users can stream fitness classes from popular fitness platforms like Studio, Zwift, and Peloton all without a required subscription. That said, connection to third-party apps does require a personal smart device to access touch screen content, videos, or online classes. 

If you’re someone who enjoys interval training, the 7.8 AT will likely be a great fit. Equipped with exclusive QuickDial controls and an integrated Sprint 8 HIIT program, runners can quickly and conveniently control speed and incline with the roller style control. Unlike grip-mounted buttons, the rollers allow users to tweak the speed or incline with minimal interruption to their run. 

Horizon provides an impressive lifetime warranty on both the frame and motor, which is testament to its quality design and components. As with all models in this Studio Series, the 7.8 AT features a folding design and transport wheels. However, with a weight of 330 pounds, it’s not easily moved around. Additionally, when folded, it still has a large footprint so it’s not very space-saving.



76” L x 37” W x 64” H

Folded dimensions

42” L x 37” W x 71” H


330 lbs

Weight capacity

375 lbs

Speed range

0.5-12.0 MPH

Incline range


Fitness app(s)

Peloton, Zwift, Studio


9.3” color TFT screen

Running area

22” W x 60” L


Lifetime frame and motor, 5 years parts, 2 years labor






1.6 mm, silicone

Heart rate monitor


GGR Community Reviews

Horizon 7.8 AT Treadmill

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      The Horizon 7.8 AT is an impressive treadmill suited for serious runners and newbies alike. With access to popular fitness apps and no required subscription, it may be attractive to those who don’t want to be locked into one platform.