There is no official GTA 5 for Android, and any "OBB zip" file claiming to be 1.8 GB is not the real game. The original GTA 5 is over 100 GB in size and requires hardware much more powerful than what most mobile devices can offer.
If you want to play GTA 5 on your Android device safely, you can use these official methods: Gta 5 Android Obb Zip 1.8 Gb -
GTA 5 was not officially released for Android by Rockstar Games. Any files claiming to be the full game in that size are almost certainly: There is no official GTA 5 for Android,
For over a decade, Grand Theft Auto V has reigned supreme as one of the best-selling and most expansive open-world games ever created. While Rockstar Games has officially brought GTA: San Andreas, Vice City, and GTA III to mobile devices, the massive, 100+ GB PC/console version of GTA V has never received an official Android release. Any files claiming to be the full game
Would you like recommendations for legal ways to play actual GTA 5 on a phone (via streaming)?