It is possible to mine Bitcoin on Android, but it is not as profitable as it used to be. In the early days of Bitcoin, it was possible to mine the cryptocurrency on a regular desktop computer. However, as more and more people began mining Bitcoin, the difficulty level of the mining process increased, making it necessary to use specialised hardware known as ASICs. ASICs are far more expensive than regular computers, and they consume a lot of electricity.
NOTE: It is possible to mine Bitcoin on an Android device, however it is not advised. Android devices do not possess the same computing power as a desktop or laptop computer, and mining Bitcoin with an Android device is likely to be slow and inefficient. Furthermore, mining Bitcoin can require significant amounts of electricity, which can lead to expensive bills if running the process on an Android device. Additionally, the process of mining Bitcoin requires significant amounts of data usage which could potentially lead to high costs and potential data overage fees.
For these reasons, mining Bitcoin on Android is no longer profitable. There are still a few people who do it, but they are not likely to make much money from it.