Both of them are simple laptops that could be used by home users, and students. The 13.3-inch SS M40 is equipped with Core 2 Duo T7100 or Celeron 540 processor, 512MB RAM (upgradable to 4GB), max 120GB hard drive, DVD burner, a/b/g wireless, and Vista. It's truly an ultraportable at 1.9Kg. The 15-inch Satellite J63 is based on Celeron M530 chip and features similar configuration.

The SS M40 and J63 starts at $1,526 and $1,492 respectively.

Source [SS M40]
Source [J63]