You stated a valid reason but keeping a power bank is an extra hassle. In the case of camera of smartphone, I think the Android of Samsung brand beat the Apple brand. In the case of audio, I can't say too much as I never paid too much attention to it.
If you need better performance you need the finance otherwise it doesn't matter if it's an Apple or a Samsung, it won't deliver you the better performance. So money delivers the best performance to you🤣. !lol