On sites like HiIDude, "portable" refers to . These are not 4K Blu-ray rips. Instead, they are small-sized videos (usually between 300MB to 700MB) encoded to play smoothly on smartphones, tablets, and laptops without taking up your entire storage space.
It is important to understand that sites like Hiidude operate in a legal gray area or are outright illegal. Copyright Infringement: hiidude malayalam movies portable