Pros and cons for both. Klipsch have volume control and one tap transparency mode. Bose has no volume controls (yet) and you have to scroll through taps for "favorites" regarding the transparency mode. Klipsch go in your ear, Bose sit on your ears and do not go in deep. Klipsch are much smaller, Bose are bigger. Bose has ANC, Klipsch has passive isolation. Both have really great sound. The Klipsch cases are much nicer. The zippo version is very solid. The McClaren version is solid, waterproof and has wireless charging. Both have apps. The Klipsch can be EQ'd within the app, the Bose cannot. I haven't done major outdoors walking to test for dropouts on any of these. Both earbuds are second gen - it's clear the manufacturers learned a lot from their first gen mistakes. So, again, it's really hard to say. It's personal preference. If you don't want to shell out $279 for the Bose, go with the zippo Klipsch and I don't think you'd be disappointed. But you can't really go wrong with either IMO.