When Fortnite launched on the Google Play Store, a configuration error allowed some players to download the game on unsupported devices that didn't meet the game's minimum system requirements. If your device was affected, you will receive a refund from Google for any Fortnite purchases. If you don't receive a refund, please contact https://support.google.com/googleplay.
Fortnite is compatible with devices running 64-bit Android on an ARM64 processor, Android OS 8.0 or higher, minimum 4GB of RAM, and GPU: Adreno 530 or higher, Mali-G71 MP20, Mali-G72 MP12 or higher. If you are unsure if you meet these requirements, please reach out to your device's manufacturer.