Vita3K Android Release 4 is released. Vita3K Android is an experimental PlayStation Vita emulator for Android. It comes as an APK, ready for you to install.

Vita3K Android Changelog:
Increase minimum version to Android 8.0 (temporary)
Add direct access to the PS Vita internal storage with a Document provider (should allow alternative frontends to list and launch vita games)
Add L2/R2 triggers to the ingame overlay when PSTV mode is enabled
Rebase Vita3K:
Improve in-app game compatibility reports (Zangetsu)
Fix Project Diva movies (lybxlspv)
Many lang fixes (Zangetsu)
Implement memory mapping:
Huge performance boost
Reduce memory usage (by a fixed 300-400 MB)
Fix many graphical glitches (flickering and missing ground in many games)

Download: Vita3K-Android R4

Source:Here