Even on legacy hardware, the Tor Browser provides critical protections:
Navigate to https://torproject.org . The page should display a green message confirming that your browser is successfully configured to use Tor. Critical Security Risks of Browsing on Android 4.2.2 tor browser apk for android 4.2.2
A September 2022 discussion in the official Tor Project forum made this point clear: although Tor Browser for Android would run on Android 5.0 (Lollipop), the forum reply emphasized that "this version of Android is highly outdated" and encouraged using "the version of any operating system that still, at the very minimum, receives security updates" — meaning Android 10 or newer at that time. Even on legacy hardware, the Tor Browser provides