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One UI Home is Samsung’s built-in Home-screen app for Galaxy phones and tablets. It provides the screen where you find and launch apps, place widgets, and arrange shortcuts. Seeing it in battery usage is not, by itself, a sign of a problem; Samsung says it comes preinstalled and cannot be removed.
What is One UI Home on a Samsung phone?
One UI Home is the app that manages the Galaxy Home screen: the pages of app icons, folders, and widgets you see after leaving an app. Samsung describes it as providing navigation tools for launching apps and widgets. It is one part of the Galaxy experience, not the entire One UI software layer. Samsung’s One UI Home overview
Samsung preinstalls One UI Home on Galaxy phones and tablets. Its settings let you arrange Home-screen items and manage features such as widgets, app badges, notification access, and Edge panels. The available options depend on the device and software version.
Why is One UI Home using battery?
One UI Home is the interface behind the Home screen, so it can appear in a battery-usage list while the phone is being used. That entry alone does not show that the app is suspicious or malfunctioning, and Samsung’s support information does not establish a normal battery percentage or a threshold that indicates a fault.
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If you are investigating unusually fast battery drain, look at the phone’s overall usage pattern and whether the drain continues when the screen is idle. An entry for One UI Home is not a reason to try to remove it: Samsung identifies it as a preinstalled system app that cannot be uninstalled.
Can you uninstall One UI Home?
No. Samsung says One UI Home cannot be removed from Galaxy phones and tablets. You can change which Home app opens by default if another launcher is available for your device, but that changes the Home-screen interface rather than uninstalling One UI Home. Samsung’s overview of One UI Home
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- Please note, this device does not support E-SIM; This 4G model is compatible with all GSM networks worldwide outside of the U.S. In the US, ONLY compatible with T-Mobile and their MVNO's (Metro and Standup). It will NOT work with other CDMA carriers, and it is also not compatible with their MVNO (Visible, Xfinity Mobile, US Mobile, Cricket Wireless, etc).
- Compatibility with certain third-party devices and accessibility accessories, including some hearing aids, may vary depending on manufacturer support, Bluetooth protocols, software compatibility, and regional firmware limitations. For additional hearing aid compatibility information, please refer to Samsung’s official support documentation.
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How do you add an app to the Samsung Home screen?
Samsung’s Japan support guide gives these steps; wording and menus may differ by model, region, and software version. Samsung’s guide to adding apps and widgets
- From the Home screen, swipe up to open the Apps screen.
- Touch and hold the app you want to add.
- Tap Add to Home.
To put future installs on the Home screen automatically, open Settings > Home screen and turn on Add new apps to Home screen, if that option is available on your device.
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How do you move, group, or remove an app icon?
- Move an icon: Touch and hold it, then drag it to the position you want.
- Create a folder: Drag one app icon on top of another.
- Remove a shortcut: Touch and hold the icon and select Remove. This takes the icon off the Home screen; it does not uninstall the app.
These instructions follow Samsung’s app-placement guide; exact controls can vary by device and software version. Samsung’s guide to managing Home-screen apps
How can you customize the Home screen?
Use the Home-screen editing controls on your Galaxy device to arrange pages and icons, add widgets, and adjust the options available on that software version. Samsung’s One UI 7 guide describes controls for app-icon size, app and widget labels, and layout. Samsung Canada’s One UI 7 Home-screen guide
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- YOUR CONTENT, SUPER SMOOTH: The ultra-clear 6.7" FHD+ Super AMOLED display of Galaxy A17 5G helps bring your content to life, whether you're scrolling through recipes or video chatting with loved ones.¹
- LIVE FAST. CHARGE FASTER: Focus more on the moment and less on your battery percentage with Galaxy A17 5G. Super Fast Charging powers up your battery so you can get back to life sooner.²
- MEMORIES MADE PICTURE PERFECT: Capture every angle in stunning clarity, from wide family photos to close-ups of friends, with the triple-lens camera on Galaxy A17 5G.
- NEED MORE STORAGE? WE HAVE YOU COVERED: With an improved 2TB of expandable storage, Galaxy A17 5G makes it easy to keep cherished photos, videos and important files readily accessible whenever you need them.³
- BUILT TO LAST: With an improved IP54 rating, Galaxy A17 5G is even more durable than before.⁴ It’s built to resist splashes and dust and comes with a stronger yet slimmer Gorilla Glass Victus front and Glass Fiber Reinforced Polymer back.
One UI 7 layout changes
Samsung says that on One UI 7 devices, the 4×5 and 5×5 grid arrangements are no longer in the default selection. In landscape view, the grid may reorient, and Home-screen editing is restricted: moving or deleting icons and widgets and resizing folders are unsupported. These details apply to the One UI 7 guidance, not necessarily to every Galaxy model or later software version.
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Yes, if another Home app is available for your device. Samsung’s Japan guide documents this example route to select a default Home app: Settings > Apps > Choose default apps > Home app, then choose the launcher. The menu path is a Samsung-documented example, not a guaranteed route on every Galaxy phone. Samsung’s guide to switching the Home-screen UI
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- TYPE IT IN. TRANSFORM IT FAST: Enhance any shot in seconds on your smartphone by using Photo Assist¹ with Galaxy AI.² Add objects, restore details, or apply new styles by simply typing or tapping
- MAKE IT. EDIT IT. SHARE IT: Turn everyday moments into something personal with creative tools built right into your mobile whether it’s a special contact photo, custom wallpaper, an invitation or more³
- FAST. POWERFUL. AI-READY: Power through your day with AI-accelerated performance from our fastest, smoothest and most powerful Galaxy processor yet, built to keep up with everything you do
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Changing the default Home app can affect widgets: Samsung warns that widgets may no longer appear after switching UI. Its guide says they return when you switch back to One UI Home. Which launcher and settings are available depends on the device and software version.
Why do One UI Home instructions differ between Galaxy devices?
Samsung’s guides cover different devices, regions, and software versions. Its Canada One UI 7 page, updated August 29, 2026, explicitly says that updates and screens can vary by software version, model, and region. The Japan guides for adding apps and switching the Home UI were updated August 28, 2026, and March 30, 2026, respectively. If a label or path in a guide is missing on your phone, check the equivalent Home screen or default-app settings on your installed software rather than assuming the feature is universal.
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