from what i can see online the screens between the 4 and 5 are different from part stores i checked. Very few products will have the same connectors from the lcd to motherboard in newer models. Amazon has some decently priced screens for the surfaces. Also another reason why i dont believe they would work between different models is surfaces install drivers and bios through windows updates more so than any computer. Adding parts like that would most defiantly be different software wise for them compared to other company’s like hp or dell.