The best smartphone features are often the ones you hope you’ll never have to use. Compatible Samsung Galaxy phones are now updatable to this latest version of the user interface (One UI 9), which sports upgrades like new Galaxy tools, more customization, and advanced privacy features. But there are a few practical features that you'll hope you never need but inevitably will at some point. That's especially if you hang onto the phone for any significant length of time or find yourself face to face with an unexpected issue or unfortunate accident.