I doubled my phone’s storage without a microSD slot

Files sizes are constantly growing, and that’s a problem for devices without expandable or upgradeable storage. Flagship smartphones lack the microSD card slot required for physical expandable storage, pushing users to delete files or rely on cloud storage. Apple and Samsung increased the base storage capacity of its flagships to 256GB with the iPhone 17 and Galaxy S26 series, respectively, but many phones still use 128GB or less.