Biometrix OS is one of the best Android operating systems, based on Android 5.2. It supports both Panda Mouse and normal key mapping, with built-in key mapping for most games like Free Fire.
If you want to install it on your system, your PC must have at least 2GB of RAM. Other than that, there are no specific hardware requirements.
Biometrix OS v13 is considered the king of Android OS by many users in 2025 because of its unmatched performance. The reason? It runs on Android 5, which ensures smooth gaming and system efficiency.
If you want to install it on your PC, you can watch this video, where I have also covered the Free Fire installation process.
In my opinion, Biometrix OS is the best choice. If I had a dual-core PC with 2GB RAM and needed an Android OS, I would choose Biometrix OS without a second thought. The reason is simple: it has built-in key mapping, ensures a lag-free gaming experience, and also allows me to use other features like browsing Chrome and watching 4K videos.
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