An official blog post says you can buy a Bluetooth S Pen for the Galaxy S25 Ultra. This leaves us very confused.

The Galaxy S25 Ultra's S Pen has lost Bluetooth, removing features like Air Actions and the remote camera shutter. Despite losing key features, Samsung is still charging $50 for the S Pen replacement,

Samsung has since clarified that Bluetooth support for the S Pen is, in fact, gone. According to Samsung, the blog post was made in error, and the Galaxy S25 Ultra will not offer any Bluetooth stylus features, regardless of which S Pen you have.