Jogging strollers are designed for running on trails. Sturdy metal frame, large wheels with air tires, and a hand brake.
Strollers come in various shapes and in confusing abundance of features. They cost anything from $20 for a junky umbrella stroller to more than $500 for a fancy alloy-wheel, reclining and folding jogger.
What you may consider beside the price:
Weight. It matters when you push the stroller and when you pull it up the stairs or put it in the trunk of your car. Joggers tend to be heavier than regular walking strollers because they are sturdier and have large metal wheels. Bigger wheels make up for the extra weight when rolling, but are heavier and bulkier in storage and transportation.
Wheel size. Larger are easier to roll, go on rougher terrain, more expensive, and harder to put into a trunk.
Foldability. Most walking strollers can fold flat and fit in any trunk. Some older jogging strollers don't fold at all and wouldn't fit even in the minivan trunk. I had one such as a hand-me-down, it was one of the first generation, circa 1995, faded and rusty and still doing a great job. New joggers do fold, some even with one hand, but for the small trunk and largest 20" wheels you still have to remove the front wheel every time.
Sturdiness. Jogging strollers are made with the technology and the quality standard of a bicycle. As I mentioned above, they can last ten years and four children and certain neglect in between. For comparison, my Graco walking stroller with the small plastic wheels literally broke to pieces after a year of reasonable everyday use.
Durability. Aluminium alloy wheels cost more than the steel wheels up-front, but they weigh less and don't rust. If you are going to use the stroller for several children or resell it, consider alloy wheels.
Maneuverability. A regular jogging stroller has fixed wheels. To turn it, you have to push down on the handle bar to lift the front wheel and when turn. Some new models have a smaller swivel front wheel. They are not as good for running or off-pavement walking as fixed wheels, but better for a crowded zoo.
Child's comfort and safety. Jogging strollers come with a five-point harness (shoulders, hips, and crotch). The straps are usually not padded. The seat can be reclining and suitable for the baby who cannot sit yet. Jogging with a newborn baby isn't safe in any stroller because the baby's head and neck are too vulnerable and because he cannot regulate body temperature for the first 6-8 weeks. Bigger, more alert babies obviously like the smooth ride. Always harness the child and always put the tether strap on you wrist or belt.
Extra features include adjustable handlebar, canopies, cup holders for the passenger and for the runner and much more.
See also: children, baby carrier, newborn baby, baby car seat.