Microsoft also claims Windows 10 S will work with most third party peripherals as it has access to the Windows 10 driver database.
This is short and sweet: if your computer can run Windows 10, it can run Windows 10S. MacOS and, in particular, ChromeOS deliver very long lasting, real world battery life and Windows 10 S will need to prove it can do significantly better than its bigger brother. Numerous Windows 10 laptops make lofty claims of 10-20 hour battery life and never get close. The key factor is whether this stacks up in real world use.