XP is no longer supported, so Win 10 is the next logical stop.
I stepped up and bought a 15" ASUS, with matte screen. Using a glossy screen in daylight, is a total PITA.
The larger screen is great. The extended batt life is good
Or, you could get a tablet, and do what you need to do. Probably, for less $$.
I tried a Chewi tablet. Was a PITA to use, and after the 3-4th batt charge, it took a dump, and ended up in the trash. {Chinese junk!}
Be careful what you get, with the Chinese crap.
A trip to your local computer repair guy, could provide some good input. He may well have some used, refurbs, and will know the good/bad/ ugly, of most all brands.