15 Essential Smartphone Settings Everyone Must Change in 2025 (Android & iPhone)
Most people use their phones every day, but very few people actually check the settings that control battery life, speed, privacy, and data usage. In 2025, smartphones are more powerful than ever, but they also ship with default options that are not always good for your battery, your performance, or your privacy. The good news? You can fix a lot of problems simply by changing a few key settings.
In this guide, we’ll walk through 15 essential smartphone settings everyone should change on both Android and iPhone. These settings will help your phone run faster, stay secure, save battery, and feel less annoying in daily life. If you already feel your phone is slow or draining too fast, pair this article with your other guides like Why Is My Phone So Slow in 2025? 17 Fixes to Speed It Up Fast and Why Does My Phone Battery Drain So Fast?.
Table of Contents
- 1. Why Your Phone’s Default Settings Are Not Always Good
- 2. Essential Settings for Speed and Performance
- 3. Essential Settings for Better Battery Life
- 4. Essential Settings for Privacy and Security
- 5. Essential Settings for Data and Notifications
- 6. Advanced Settings Power Users Should Check
- 7. Frequently Asked Questions
- 8. Conclusion & Recommended Guides
1. Why Your Phone’s Default Settings Are Not Always Good
When you buy a new phone, most settings are designed for “maximum convenience” and “maximum engagement”, not for maximum battery life, privacy, or control. Apps want to run in the background, send you constant notifications, use your location, and keep your screen bright so you stay online longer.
That’s why changing a few core settings can:
- Make your battery last longer all day
- Reduce lag and random freezing
- Protect your personal information
- Stop useless notifications and distractions
- Lower your mobile data usage
You already have detailed guides about performance and battery. If you need deeper help, check: How to Make Your Phone Battery Last Longer in 2025 and How to Free Up Storage on Your Phone.
2. Essential Settings for Speed and Performance
Setting 1 — Reduce Animation and Motion Effects
Heavy animations make your phone look pretty, but they also make it feel slower. On Android, you can reduce animation scales in Developer Options, and on iPhone you can use Reduce Motion.
- Android: Enable Developer Options, then set Window, Transition, and Animator scale to 0.5x.
- iPhone: Go to Settings > Accessibility > Motion > Reduce Motion.
This doesn’t change your apps, but the phone will feel snappier immediately.
Setting 2 — Turn Off Unnecessary Background App Refresh
Many apps constantly refresh in the background without your permission. This slows down your phone and drains battery at the same time.
- Android: Settings > Apps > choose an app > Battery > restrict background activity.
- iPhone: Settings > General > Background App Refresh > turn off for heavy apps.
You can keep it on for messaging or navigation apps, but turning it off for social media and shopping apps can make a big difference. For more speed tips, revisit Why Is My Phone So Slow in 2025?.
Setting 3 — Clean Up Home Screen and Widgets
Widgets and dynamic home screens look nice, but they constantly use CPU and internet data. Remove widgets you don’t really use and keep your home screen simple and clean.
3. Essential Settings for Better Battery Life
Setting 4 — Enable Battery Saver / Low Power Mode
Both Android and iPhone have system-level modes that instantly reduce background activity, brightness, and performance to extend battery life.
- Android: Settings > Battery > Battery Saver.
- iPhone: Settings > Battery > Low Power Mode.
Turn this on when you know you’ll be away from a charger for a long time. For a more detailed battery strategy, see Why Does My Phone Battery Drain So Fast?.
Setting 5 — Turn Off Always-On Display (If You Don’t Need It)
Always-on displays show clock and notifications even when the screen is off, but they still take power. If you don’t rely on it, turning this off can save noticeable battery across the day.
Setting 6 — Limit Location Services
Location tracking is a huge battery consumer. Many apps request location without a real need.
- Android: Settings > Location > App location permissions.
- iPhone: Settings > Privacy & Security > Location Services.
Change the setting to “While Using the App” or even “Never” for apps that don’t need your GPS.
Setting 7 — Reduce Screen Brightness and Auto-Brightness Behavior
Brightness is often the #1 reason batteries drain quickly. Lower your brightness slider and make sure auto-brightness is not pushing it too high indoors.
If your battery life still feels too short after these changes, read your in-depth battery guide: How to Make Your Phone Battery Last Longer in 2025.
4. Essential Settings for Privacy and Security
Setting 8 — Review App Permissions
Many apps ask for camera, microphone, location, contacts, and files access even when they don’t need it. Reviewing these permissions once a month keeps you safer and may even improve performance.
- Android: Settings > Privacy > Permission Manager.
- iPhone: Settings > Privacy & Security > check each category (Camera, Microphone, etc.).
Setting 9 — Enable Lock Screen Security (PIN, Pattern, or Biometric)
Everyone should use a secure lock screen. A simple swipe unlock is not enough in 2025, especially if you store banking apps, passwords, or work accounts on your phone.
- Use a strong PIN or complex pattern.
- Enable fingerprint or Face ID if supported.
Setting 10 — Check “Find My Device” or “Find My iPhone”
Losing a phone without these features enabled is a nightmare. Make sure device tracking is turned on so you can locate, lock, or erase your phone if it gets lost.
- Android: Settings > Security > Find My Device.
- iPhone: Settings > Apple ID > Find My > Find My iPhone.
For official instructions, you can check: Google Android Help or Apple’s support pages.
5. Essential Settings for Data and Notifications
Setting 11 — Manage Mobile Data Usage per App
Some apps constantly use mobile data in the background, which not only drains your data plan but also battery.
- Android: Settings > Network & Internet > Data usage > Mobile data usage.
- iPhone: Settings > Mobile Data > scroll to see per-app usage.
Turn off mobile data for apps that don’t need to connect when you’re outside.
Setting 12 — Turn Off Useless Notifications
Every notification lights up your screen, vibrates your phone, and breaks your focus. Disable non-essential notifications to feel calmer and save both battery and time.
- Turn off marketing and promotion alerts.
- Keep only essential ones: messages, calls, calendar, a few key apps.
Setting 13 — Enable Do Not Disturb or Focus Modes
Do Not Disturb (Android) or Focus modes (iPhone) help you control when apps are allowed to bother you. Set a schedule for nighttime or work hours so you can rest without constant buzzing.
6. Advanced Settings Power Users Should Check
Setting 14 — Auto-Update Apps Only on Wi-Fi
Auto-updating on mobile data not only consumes your data plan but can also drain battery and slow your phone when you least expect it.
- Android Play Store: Settings > Network preferences > Auto-update apps > Over Wi-Fi only.
- iPhone App Store: Settings > App Store > App Updates > enable, but disable mobile data if needed.
Setting 15 — Review Backup & Sync Options
Services like Google Photos, iCloud Photos, and cloud backups are useful, but constant sync uses battery and data. Adjust backup schedules and make sure you’re comfortable with what’s being stored in the cloud.
If you want to go deeper into the “good habits” side of smartphone use, connect this guide with your habit-based article: 10 Smart Phone Habits That Make Your Phone Last Longer. Together, they form a powerful battery and performance toolkit.
7. Frequently Asked Questions
Do I need to change all 15 settings at once?
No. Start with the ones that match your biggest problems: battery drain, slow performance, or too many notifications. You can adjust the rest over time.
Will these settings make my phone feel slower?
Most of these changes will actually make your phone feel faster, because they remove background load and cut unnecessary animations.
Are these settings safe to change?
Yes. All settings in this guide are official options in Android and iOS. You can always reverse them later if you don’t like the result.
Do I still need antivirus apps?
In many cases, using the official app stores and common sense is enough. Too many antivirus apps can slow down your phone. If you use one, choose a trusted brand.
What if my phone is still slow or draining after changing everything?
If problems continue, there may be deeper issues with hardware, battery health, or a specific app. In that case, check these detailed guides: Why Is My Phone So Slow in 2025? and Why Does My Phone Battery Drain So Fast?.
8. Conclusion & Recommended Guides
Most people never touch their smartphone settings, but a few simple changes can completely transform how your device feels every day. By reducing background activity, limiting unnecessary permissions, controlling notifications, and enabling smart power-saving options, you can make your phone faster, quieter, safer, and much more battery-friendly.
You don’t need to be a tech expert to do this. Start with two or three settings from each section, test how your phone feels for a week, and then adjust more if needed. Your future self — and your future battery — will thank you.