Bugaboo Butterfly vs Joolz Aer2

The Butterfly has years of unprompted, organic praise from parents who've used it in real destinations — not a controlled test environment. The Aer2 is Wirecutter's top pick, which matters, but lab testing can't replicate a full day of cobblestones, rain, and a toddler meltdown in a foreign train station. When parents on Reddit are still recommending the Butterfly after trips to Japan and Europe, that's a different kind of data.

The Aer2 has the smallest folded dimensions of any travel stroller tested in 2025, and at just over 15 pounds it's meaningfully lighter than the Butterfly. That matters most in one specific scenario: lifting it solo into an overhead bin. But if you're gate-checking (which most parents do), the fold size difference becomes nearly irrelevant, and the Butterfly's superior maneuverability pays dividends all day long.

The Butterfly is specifically praised for navigating varied terrain — city streets, uneven pavement, the kinds of surfaces you actually encounter when traveling internationally. The Aer2's ultra-light construction is an engineering achievement, but physics is physics: lighter frames and smaller wheels typically mean more vibration and less control on anything that isn't airport tile. If your trips involve real cities, this gap matters every single day.

You're paying $500-$700 either way, which is a serious investment for a stroller you might use a few times a year. At that price, the Butterfly's premium build quality and long-term durability make more sense — it's a stroller you can use daily and travel with, not just a travel-only piece. The Aer2 at $500-$600 is harder to justify unless you're truly obsessed with pack size, because you're paying near-Bugaboo money for a more limited use case.