iOS 26 vs. iOS 18: Which One Should You Use?

Robert Xiao
Last updated: Sep 12, 2025

If you’re considering upgrading from iOS 18 to iOS 26 but aren’t familiar with the latest version, this guide compares the two systems to help you make an informed decision.

iOS 26 will be available for download on September 15, 2025. If you’re wondering whether to update from iOS 18 to iOS 26, this guide can help. We’ll compare iOS 26 and iOS 18 from various aspects to help you make an informed decision.

Let's get started.

iOS 26 vs. iOS 18: Which One Should You Use?

iOS 26 vs. iOS 18: A Full Comparison

Based on the updates in iOS 26, here’s a visual comparison between iOS 18 and iOS 26:

FeatureiOS 26iOS 18
Visual Style"Liquid Glass" — dynamic transparency, refraction, and a glass-like effectMinimal flat design inspired by iOS 7, with richer color layering
Material EffectsSmooth controls and icons with reflections, layered visuals, realistic lighting in Dark ModeSubtle blurred backgrounds (Control Center, Notifications), mostly minimalist
Icon Design3D "blown glass" effect with glowing edges and vibrant colors, similar to visionOS styleSimple geometric shapes, strictly consistent, flat
Interactivity"Lively" interface that responds to ambient light and device tilt, with natural animationsFunctional animations with smooth transitions, no contextual interaction
Dark ModeEmphasizes metallic reflections and realistic light and shadowTraditional contrast adjustments, no special reflections
Design PhilosophyBold, sensory-focused experience with immersive depthPractical minimalism, prioritizing readability
Tip
iOS 26 is compatible with iPhone 11 and later models.

Why Should You Be Cautious Before Upgrading to iOS 26?

You may already know the differences between iOS 26 and iOS 18, and some of the new features might make you want to upgrade immediately. However, it’s worth reviewing the common issues reported in iOS 26 betas:

  • Frequent crashes
  • Unexpected overheating
  • Reduced battery life (rapid drain)
  • Face ID not working
  • Siri unresponsive
  • Rear camera fails to open
  • Rear camera overheats quickly
  • Dock issues in portrait mode
  • Transparent App Library backgrounds
  • Fully transparent Control Center
  • Incorrect battery display
  • Unexpected restarts

iOS 26 is still in its early stages, while iOS 18 has reached a more stable version, iOS 18.7. If you’re not an iOS enthusiast or don’t need to test new features, it’s wise to wait for feedback before updating, especially if you’re already on iOS 18 or one of its minor updates.

Bonus: How to Downgrade from iOS 26 to iOS 18

If you’ve already upgraded to iOS 26 but find the system unstable or the experience unsatisfactory, don’t worry! You can use BuhoRepair, a tool specifically designed for iOS downgrades, to revert your device back to iOS 18.7. Simply follow the instructions to easily complete the downgrade.

DownloadRuns on Windows & Mac
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How to Downgrade from iOS 26 to iOS 18.7 Using BuhoRepair:

  1. Download, install, and launch BuhoRepair on your computer.
  2. Click Upgrade/Downgrade iOS > Downgrade Version > Downgrade Now.
    BuhoRepair Main Interface
  3. Select the available iOS 18 version and click Download.
    Download iOS 18 Firmware to Downgrade iOS 26
  4. After the download is complete, click Downgrade Now.
  5. Wait for the downgrade process to finish.

FAQs

  1. What should I pay attention to before upgrading to iOS 26?

    If you can accept the potential issues in iOS 26, it’s recommended to back up your iPhone before upgrading. If you need to downgrade later, you can restore your data from the backup to avoid losing important information. The two main backup methods are:

    • iCloud backup
    • iTunes/Finder
  2. Will my device become slower or consume more battery after upgrading to iOS 26?

    This is a common issue on iPhones, especially older models like the iPhone 11 and 12. Apple prioritizes newer devices during beta testing, so older ones may experience overheating or lag. If you use your device daily, it’s strongly recommended to back up your data or avoid using the beta version.

  3. Why didn’t I get an iOS 26 update notification?

    Possible reasons include:

    • Your device isn’t compatible with iOS 26.
    • Your network connection is unstable.
    • There may be issues with Apple's servers.

Conclusion

Now that you understand the differences between iOS 26 and iOS 18, you can decide which version is right for you.

If you regret upgrading to iOS 26, don’t worry. BuhoRepair, a reliable tool from Dr.Buho, makes it easy to downgrade.

Robert is a tech-savvy fan who loves all things Apple. As a hobbyist of gardening and meditation, he is also a seasoned writer covering a wide array of Apple products, like iPhone, iPad, iOS, and more.