Just got your Galaxy S26 Ultra? In this video I walk you through the first things I always do on day one to get the most out of One UI 8.5—especially battery health, privacy, and performance. I start with Battery Protection (I recommend the Basic option with Sleep protection) because keeping a phone pinned at 100% and running hot is one of the easiest ways to wear a battery down. I also explain my charging habits: at night I stick with a lower-watt wired charger (around 20W) to keep heat down, and I save the 60W fast charging for when I actually need it. From there, I jump into some of the coolest new features, like the Privacy Display (including setting it to auto-trigger in specific apps or when notifications pop up). I show how I map the side button double-press to toggle it instantly—super useful on a train or in public. Then we go through home screen tweaks, checking battery health %, running Samsung’s built-in diagnostics, stopping spam calls with Call Screening, and switching navigation to swipe gestures for more screen space. I also cover the fun stuff: LLM-powered Bixby, Galaxy AI toggles, Live Audio Eraser, Circle to Search, one-handed mode, and camera settings I actually recommend (like turning off Scene Optimizer, avoiding Auto FPS changes, and using the new horizontal lock for gimbal-like video). Finally, I show multitasking tricks, S Pen favorites, an AI photo prompt edit, automatic restarts for speed, and the security settings I consider essential.