Baby Jogger Summit X3 Running Stroller Review

The Baby Jogger Summit X3 is a sturdy running stroller that can handle trails as well as the road

Baby Jogger Summit X3 Running Stroller
(Image: © Nick Harris-Fry / Future)

Our Verdict

The Baby Jogger Summit X3 is a good running stroller, with a design that rolls smoothly over even and bumpy terrain. It’s easy to fold and great for general use alongside workouts, unless you get it as muddy as I did during testing.


  • Easy to run with on and off-road
  • Front wheel can lock or swivel
  • Large hood with window


  • Large wheels make it harder to store
  • Front wheel wobbled at times
  • Can’t adjust handlebar height

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The Baby Jogger Summit X3 has been one of the most popular running strollers available for several years and it has been a useful addition to our household during testing, making it easy to get out for a run while my infant son sleeps. 

It’s an expensive purchase and there are areas where the design could be improved, such as the non-adjustable handlebar, but the Summit X3 is a great all-round stroller that copes brilliantly with off-road runs and walks.

Baby Jogger Summit X3: Price And Availability

The Baby Jogger Summit X3 was originally launched in 2016 and costs $549.99 in the US and £529 in the UK.

How I Tested This Running Stroller

Baby Jogger Summit X3 Running Stroller

(Image credit: Nick Harris-Fry / Future)

I’ve been running regularly with the Summit X3 over the past four months, and my wife has also used it during this time. I have used it mainly for runs in a local forest, which has been muddy for most of my testing, as well as on runs on paved surfaces.

Design And Assembly

The Summit X3 is a stroller with three air-filled wheels, all of which have suspension. The large front wheel can be set to fixed, which you need when running, or swivel, which is more useful for everyday use. You can change the wheel setting using a lever on the side of the stroller.

There is a brake on the handlebar and a strap you can use to tether yourself to the stroller, both are important for staying in control when running downhill. The height of the handlebar can’t be adjusted and it was a little low for me when running—I’m 6ft and my wife is 5ft 8in, and the height suited her better.

Baby Jogger Summit X3 Running Stroller

(Image credit: Nick Harris-Fry / Future)

The reclining seat is padded and the five-part strap, while is fiddly to do up at times, holds your child in place comfortably and, most importantly, securely when running. There is a large adjustable hood that provides protection from the sun (it’s UV 50+-rated), and it folds down far enough to keep the wind out of a child’s face when running. There are mesh windows on top you can use to check on your kid while running.

There is a rear pedal brake you can use to anchor the stroller. Once this got muddy I found it hard to operate the brake with my foot and often had to reach down to press it into place with my hand. Although the instructions weren’t particularly clear, it was easy enough to assemble the stroller in around 10 minutes. 

Running With The Baby Jogger Summit X3

The Summit X3 is smooth to run with thanks to the large wheels with suspension, even when taking it off-road. Most of the runs I did with the stroller were on forest paths with muddy and rutted sections, and it handled them well. The stroller feels sturdy and I’ve not had any punctures.

One problem with runs in the mud or along leaf-strewn paths was that the front wheel can get clogged up quickly. On one outing I had to poke a stick through the gap at the top of the wheel several times to clear it out. My wife has also experienced some front wheel wobble when running with the Summit X3, which hasn’t been a problem for me yet.

Running with any stroller isn’t the most natural movement, but this was exacerbated for me because of the fixed handlebar, which was low for me. The stroller is wide and has some weight to it, which is good for stability especially on uneven ground, but means it can feel heavy to push up hills on the trails. This wasn’t such a noticeable problem when on asphalt though, and you can run quite quickly with the Summit X3 when on hard, flat ground. I’d prefer to save my speed sessions for when I’m not pushing a stroller.

I can’t speak for every child, but mine always fell asleep quickly when I ran with the Summit X3—it was generally an easier and more reliable way to get him down for his afternoon nap than pushing him in his pushchair.

Folding And Daily Use

Baby Jogger Summit X3 Running Stroller

(Image credit: Nick Harris-Fry / Future)

The Summit X3 has a one-handed folding system where you pull the strap in the center of the seat up and the whole stroller collapses into place. There’s a knack to this. First you pull the small loop with a finger and then the larger loop with the rest of your hand. 

It can be done one-handed, but only with practice, and then actually lifting the stroller with one hand isn’t that easy, since it weighs 28.4lbs/12.8kg and is large and awkward. I needed two hands to unfold it because of this. The wheels are so large it’s not the easiest to store even when folded, especially as it doesn’t stand unsupported, but it did fit the trunk of our small car comfortably.

Baby Jogger Summit X3 Running Stroller

(Image credit: Nick Harris-Fry / Future)

The wide base of the wheels is useful for running, but makes it hard to maneuver the Summit X3 at times, especially in narrow store aisles. While we did use the Summit X3 regularly when not running—and it’s great for walks on rough terrain—it can be cumbersome to use around town compared with a non-running stroller.

There is a large compartment under the seat for storage, which is useful for shopping, and a mesh pocket on the back of the seat you can pop a water bottle in when running, though I found it hard to reach into the pocket without coming to a stop.

Is The Baby Jogger Summit X3 Worth It?

The Summit X3 is an expensive purchase but one that can make a huge difference in fitting in your exercise while looking after children. My wife and I enjoyed using it for regular runs and it was ideal for the forest paths we predominantly used it on. I used a Out ‘n’ About Nipper Sport (UK only) with our eldest child and found the Summit X3 to be an improvement on that, with a smoother ride especially when off-road, though the Nipper is cheaper. 

Nick Harris-Fry
Senior writer

Nick Harris-Fry is a journalist who has been covering health and fitness since 2015. Nick is an avid runner, covering 70-110km a week, which gives him ample opportunity to test a wide range of running shoes and running gear. He is also the chief tester for fitness trackers and running watches, treadmills and exercise bikes, and workout headphones.