There are many ways to watch archived video films transferred to MP4 files on devices such as phones, smartphones, and Android tablets. An interesting and convenient method is to use a USB Pendrive with two connectors. Such a pen drive has a regular large USB connector on one end and a small (micro) USB connector on the other. You can directly connect this small connector to your smartphone or tablet, allowing you to transfer movies to your phone or tablet or watch them directly from the pen drive on your device’s screen.
The cost of such a memory solution is only slightly higher than a regular pen drive, but it provides much greater versatility for connecting to various devices, including smartphones, tablets, and televisions.