These versions will run on your Android 5.1 device today. However, be prepared for some limitations: you won't receive security updates, newer features like enhanced Reels editing or Meta AI integration won't appear, and over time, some server-side functions may break as Facebook updates its backend infrastructure.

Thankfully, the open-source nature of Android provides a workaround. By downloading an Android Package Kit (APK) file, you can bypass the Play Store restrictions and install Facebook directly onto your Android 5.1 device. This comprehensive guide will walk you through finding the right version, installing it safely, and exploring lightweight alternatives to keep your older device running smoothly.

Using your device's web browser, navigate to one of the trusted repositories listed above. Search for . Look for the Version History or All Versions tab.

. Avoid third-party "cloned" apps, as they can often contain malware or redirect your traffic to suspicious links. Need help with the installation? Check out this guide on how to install apps on Android to get started. to free up space on your device?

Open your file manager, locate the downloaded .apk file, and tap on it to install.

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Last updated: October 2025. This guide is accurate for Android 5.1 (API level 22). If Facebook changes server-side requirements, only Facebook Lite will remain viable.

Before downloading an APK, decide which version best suits your device's hardware constraints. Option 1: Standard Facebook (Archived Versions)