Call of Duty: Mobile is compatible with Android devices with at least 2 GB of RAM and running Android 5.1 and up, and on iOS devices with at least 2 GB of RAM and running iOS 9.0 or later. Learn how to check and update your Android version. Learn how to update your iOS device.

Unfortunately, you cannot play COD Mobile on a 1GB RAM device. For playing these online games, the minimum requirement of specifications necessary is 2 GB RAM.