While "iPad" usually refers to Apple's tablet, in the context of specific media keywords like this, it can sometimes refer to a or a "pad" (platform) for viewing high-end content. Platforms focusing on "exclusive" 4K media often serve specific communities, such as:
Decent for the price, but nothing premium.
How to export UHD content so it retains its quality on mobile-first apps like TikTok or Instagram.
Amazon maintains a 4K Store where you can purchase or rent titles specifically for 4K-compatible Smart TVs and Fire TV sticks.
This often implies "master" quality files, which are less compressed than what you find on standard social media or video hosting sites. The Role of Digital Wikis and "iPads" in Media