The Renaisser that I picked, the 520C, was Microsoft Surface compatible. It has two advantages: built-in usb-c charge port (vs. the weird "aaaa" batteries the stock and others take), and a felt-like stylus that felt way less slippery compared to the stock stylus. Edit0: also, unlike the stock Kobo stylus, the nib seems much less prone to wear - the former wore down in about a month while the latter is still going fine months later.