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How to keep your Galaxy phone from slowing down

Galaxy Note10+ with Device care screen

To keep up with the nuts and bolts of your phone's performance, use the Device care feature. It provides an overview of your battery, storage, RAM, and security. You can also automatically optimize your phone for faster, better performance.

Note: Available screens and settings may vary by wireless service provider, software version, and phone model. This feature was previously called Device maintenance.

Quick optimization

The Quick Optimization feature improves your phone's performance by identifying apps that use excessive battery power. It also clears away unneeded items from memory, deletes unnecessary files, and closes apps running in the background. Optimizing your phone is quick and simple.

From Settings, swipe to and tap Device care. Tap Optimize now, and then tap Done.

Device care menu with a list of options

Optimize battery and use power saving modes

Battery is your phone's lifeline. There are several ways you can change the battery settings to optimize your phone's battery life.

From Settings, swipe to and tap Device care. Tap Battery, and then tap Power mode. Select from the following options:

  • High performance: Maximum screen brightness and resolution. Uses more battery.

Power mode screen with a list of options
  • Optimized: Get the recommended balance of performance and battery life.

  • Medium power saving: Extend battery life by limiting some functions.

  • Maximum power saving: Save as much battery as possible.

You can also turn on Adaptive power saving to automatically set the power mode based on your usage patterns. Learn even more ways to make your phone's battery last.

Clean storage

If you are worried about your phone being overloaded with unnecessary residual files, it's about time you clear out your storage. Happy cleaning!


  1. From Settings, swipe to and tap Device care

  2. Tap on a category that has items you'd like to remove.

  3. Tap the circles to place a checkmark next to the items you'd like to delete. You can choose as many as you'd like.

  4. Tap Delete when you've selected everything, then tap Delete again on the confirmation.

Clean memory

Is your phone getting glitchy and slow? It's time you clean up your phone's memory to improve its performance.

From Settings, swipe to and tap Device care. Tap Memory, and then tap Clean now to free up memory by stopping background apps.

You can tap Select apps to exclude and add apps to the list if you'd like to keep certain apps running in the background.

Memory screen displaying memory usage

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