It is very difficult to predict the future. When it comes to mobiles, the speed at which new features are added every day, it is even more difficult. But estimating the technology advancements here is the specs and features that you can expect in mobile phones in 2025.
You can have improved CPU and RAM for lightning speed data transfer and 5G or more networking technology. We can expect multi-core CPU s potentially up to 16+
We can estimate to have phone batteries of about 5,000+ mAH by the year 2025.
We can expect smartphones with cameras capable of recording in 8K or 4320 x 7680
Phones are expected to have inbuilt eSIMs.