Android · System Info
View detailed Android and build version info
Shows the exact Android OS version, security patch level, build number, kernel version, and Google Play system update version installed on the device.
How to open Android Version Detail Page
- Open Settings → About phone
- Tap 'Android version'
- Review Android version, security patch, build number, and related details
What you should know
- Displays Android version number and build number together
- Includes kernel version and baseband/firmware details on the same page
- Tapping the build number repeatedly enables Developer options
- Distinct from the general About phone summary page
Why it matters
The detailed version page is the authoritative source for confirming exactly what software is running on a device, which matters when troubleshooting a bug, checking app compatibility, or verifying whether a promised security or feature update has actually installed. Support articles and app compatibility requirements frequently reference specific Android version and build numbers, so knowing how to find this precise information saves time when diagnosing issues or filing support tickets.
Best practices
- Check this page before filing a bug report so you can include exact build information
- Compare build number after an update to confirm it installed successfully
- Reference kernel and baseband version when troubleshooting connectivity issues
Common problems and fixes
- Build number doesn't change after an update appears to install
- Restart the device, since some updates require a reboot to fully apply and reflect the new build number.
- Version shown doesn't match what an app requires
- Confirm you're reading the Android version, not a manufacturer skin's separate version number.
- Tapping build number doesn't unlock Developer options
- Ensure you're tapping quickly and consecutively, and enter your PIN or password if prompted partway through.
Tips and tricks
- Tap the build number seven times as a quick way to reach Developer options
- Screenshot this page when reporting an issue to app or Google support for faster diagnosis
Frequently asked questions
What's the difference between Android version and build number?
The Android version reflects the OS release (e.g. Android 15), while the build number is a granular identifier for the exact software package installed.
Where do I find the security patch date separately?
It's listed on this same detail page, alongside version and build information.
Does this page show if a newer update is available?
No, checking for available updates is a separate action found on the System update page.
Related settings
- About Phone / System InfoAbout phone is the central reference page for identifying your exact device — model number, Android version, build number, IMEI, and serial number. It's the page you'll be asked to check during a support call, a warranty claim, or when confirming whether an app is compatible with your specific device.
- Developer OptionsDeveloper options is a hidden settings menu, invisible until unlocked, that exposes low-level tools like USB debugging, animation scaling, background process limits, and Bluetooth/Wi-Fi diagnostic logs. It's built for app developers and advanced troubleshooting, not everyday configuration.
- Security Patch LevelThe security patch level shows the exact month a device's known vulnerability fixes were last updated — a separate, more frequent indicator than the overall Android version number.
More System Info guides for Android
- Date & TimeDate & time settings control whether your device sets the clock and time zone automatically from the network or your location, or lets you set them manually. Getting this right keeps alarms, calendar events, and timestamped messages accurate, especially while traveling across time zones.
- Model & Hardware InformationDisplays the exact device model name, model number, hardware revision, and manufacturer details, useful for support calls, warranty checks, and compatibility verification.
- IMEI & Serial NumberShows the IMEI (or MEID) and serial number that uniquely identify your physical device, used for warranty claims, insurance, carrier activation, and reporting a lost or stolen phone.
- Legal InformationProvides access to open-source software licenses, third-party notices, terms of service, and privacy policy documents bundled with the Android operating system.
- Regulatory LabelsDisplays the electronic version of regulatory compliance labels and certification marks (such as FCC ID, CE marking, and country-specific approvals) that would traditionally appear printed on the device.
- Device Status InformationDisplays live technical status details including SIM status, IP address, Wi-Fi MAC address, Bluetooth address, network signal strength, and device uptime since last restart.