As of 2025, Chrome for Android stable versions are in the 120s–130s range. A "version 511" does not exist and is likely a scam, malware, or a fake APK . This post warns users about that danger. google chrome for android 511 link
Yes. The minimum SDK for Chrome 90 is API Level 21 (Android 5.0). It works perfectly on 5.0, 5.0.1, and 5.1.1. As of 2025, Chrome for Android stable versions
This site hosts verified versions of Google Chrome for Android 5.0+ . Look for version 95 or lower to ensure compatibility with API level 21 (Android 5.0/5.1.1). As of 2025