i have purchased the s21 ultra, since opening the box i have been nothing but disappointed with everything, rattling sounds when i move the phone, software glitches everywhere, cameras are no where near as good as advertised, customer service from Samsung is absolutely disgraceful and much more. for a supposed flagship phone from such a massive organisation i expected alot better for over a thousand pounds. very disappointed and will definitely be looking into swapping over to another phone manufacturer this phone alongside the shocking customer service has left me no choice.