A. Weight and body shape — measure both Every stroller has a weight limit, but size matters just as much. A long, lean dog and a round, stocky dog can weigh the same and need completely different amounts of space. Measure length and shoulder width before you decide.

B. Where you’ll actually use it—Smooth sidewalks and grassy parks are two different things. For city use, standard wheels are fine. If you’re often on grass, gravel, or uneven ground, you’ll want all-terrain wheels with suspension — otherwise your dog is just getting rattled around the whole time, which kind of defeats the point.

C. Will it fit in your car?— Where do you store it when you’re not using it? Can it fit in your trunk? Some strollers fold down surprisingly compact, others not so much. Worth checking before you commit.