This isn’t an official update from Rockstar. Instead, it’s a community-made mod that replaces in-game textures, UI elements, vehicle skins, and environmental details with — often up to 4096x4096 pixels. Some packs also include:
Grand Theft Auto: San Andreas (GTA SA) with 4K-style graphics on Android is possible through community-created "modpacks" that overhaul textures, lighting, and reflections . These mods are especially popular for the Definitive Edition Gta San Andreas 4k Graphics Mod Android Download