A:AnswerEverything that you buy new pretty much comes with a year warranty by the manufacture. I had an issue with my right earbud. It wasn’t working correctly they replace the earbud, but I had to send in the unit first is a very awesome process.
A:AnswerThese do come with extra inserts but not the “cone” type you’re referring to. It comes with smaller and larger sizes of the one that is showing. I have seen aftermarket cone tips that are available.
A:AnswerAs long as your watch has up-to-date bluetooth software, then yes. I have read a few things about connectivity issues with certain android smart watches. I have a garmin watch but I've never used the headphone connection on my watch.
A:AnswerTechnically with the iphone...no because of compatibility of software. with the A21, yes but it depends on how you are using the phone. These phones are really meant for light usage (like checking email, text and phone calls...maybe the occasional picture). If the previous mentioned is all you do with it, then you shouldn't have issues with the buds. The only thing I can think of that would cause issues with the app is if you ran out of space for the system apps to run everything and if you are trying to do to much at one time. Hope this helps.
