Standalone tablet that can still connect to a computer?

Hi! So i currently used a huion Kambas 13, love it. A little small (bad eyesight) but it serves me well enough for what I need.

Though the only issue is I've been sick a lot lately and unable to stay vertical at my desk to use it every time I wish to draw.

I was wondering if there was any tablet that could be used away from a computer but connect to one (even if just for file transfer, doesnt have to be a second screen like my kamvas)

Are there standalone drawing tablets that arent just actual tablets? Am i making myself look really dumb right now? Maybe but id rather ask than not.

I primarily use clip studio, though i bought it forever ago so i dont mind switching around programs if i have to (though i doubt i would tbh..)

Also, not important important but preferably something larger than 15in (but not over 25) and non powered pen. (My ass WILL forget to charge it but again, im open to options that need a powered pen)

Idc about budget if I gotta wait awhile and save i don't mind, took me 5 years to get the kamvas anyways. (I wasnt old enough for a job so i saved birthday money lol)