Customer reviews from Sunny Health & Fitness
Sunny Health & Fitness - Active 400 Smart Auto Incline Wi-Fi Treadmill - Dark Gray
Average customer rating
4.3
(7 Reviews)
Rating breakdown 7 reviews
5 Stars
4
4 Stars
1
3 Stars
2
2 Stars
0
1 Star
0
Customer Reviews for Sunny Health & Fitness - Active 400 Smart Auto Incline Wi-Fi Treadmill - Dark Gray
Customer Rating
3
I can’t get it to
on June 9, 2026
Posted by: Linda W.
I can’t get it to start. The power light is on but it won’t start. I’m 77 yrs old. I’ll have to get someone to help me. What do we do?
Written by a customer while visiting Sunny Health & Fitness
Customer Rating
5
Perfect size!
on March 23, 2026
Posted by: Kari K.
This machine is more compact than my old one and fits much better in the space. I highly recommend getting the auto incline too.
Written by a customer while visiting Sunny Health & Fitness
Customer Rating
4
Track width is narrow
on March 17, 2026
Posted by: Debra D.
Everything about this treadmill is positive except the width of the track. It is very narrow as the reviews state. I tried to watch TV and hit the side twice. Scared the heck out of me. I now only run while listening to music. The treadmill is easy to set up.
Written by a customer while visiting Sunny Health & Fitness
Customer Rating
5
Great machine
on March 11, 2026
Posted by: Moyer
So far, so good. Used it almost every day for the last week and a half. The incline is great and kicks my butt. Definitely download the app. You can save all of your workouts and play scenic routes on your tv to make the path a little less boring. The app syncs to the health app on iPhone, so if you’re counting steps, this is a great feature. I’ve done mostly fast walking and hubby is doing walking and running. The belt width and length is great for us. I’m 5’1 and he’s 5’8. Glad we purchased!
Written by a customer while visiting Sunny Health & Fitness
Customer Rating
3
Its ok. The belt is
on February 26, 2026
Posted by: Glenn G.
Its ok. The belt is a little narrow for me. But so far it’s not too bad.
Written by a customer while visiting Sunny Health & Fitness
Customer Rating
5
Great Start
on January 28, 2026
Posted by: Brian Q.
Received my Active 400 Smart Auto Incline Treadmill today. No shipping damage was found, easy assembly, and works as advertised. Just finished my first workout and it was great. Very quiet compared to my 20+ year old previous treadmill. The belt width is good and the length is great and safe. I recommend this treadmill to anyone who doesn't need speed above 9 mph.
Written by a customer while visiting Sunny Health & Fitness
Customer Rating
5
Home Treadmill
on July 17, 2025
Posted by: William W.
Fast delivery and well-packaged on arrival. Setup was quick and easy with clear instructions. The construction feels solid and sturdy, giving a sense of durability and quality. It runs very quietly and the belt motion is incredibly smooth, making it perfect for home use without disturbing others. Great value overall—very happy with this purchase!
Written by a customer while visiting Sunny Health & Fitness