If you pay attention to the appearance and feel of the phone, it is recommended to choose the S7 stainless steel version, its shell material is more solid, stable, and has a better metal texture and feel.
And if you focus on performance and functionality, the S8 aluminum version is more suitable, it uses a more advanced processor and a larger screen, while having more features and higher performance. All in all, which version to choose mainly depends on your personal needs and preferences.