We use the Galaxy A15 as a test device for entry level phones in our lab. I get to spend a lot of time with it while testing and debugging. There is absolutely

We use the Galaxy A15 as a test device for entry level phones in our lab. I get to spend a lot of time with it while testing and debugging. There is absolutely no difference compared to a more expensive phone. Of course, there is the occasional lag (and by lag I mean that you have to wait a couple of ms/s for things to happen), and maybe you won't see the camera used on a movie set... but beyond that, you can live your life and never miss anything from that iPhone. Using such a device, you also immediately become aware of apps and websites that were released a bit too quickly - heavy, clunky things take longer to load, and you're more likely to abandon a heavy app/website. So once again, I ask you to optimise your front-ends (both web and 'native').