The 14" had the 9 hour battery, wow that is great.
The 15.6 did not say, I would guess about 6.5 hours, my 17.3 get 5 hours, the larger the screen the less the battery lasts
If you can handle a 14" screen, it may the way to go
Don't you just hate decisions
14" has bluetooth and wifi -- no number pad on right
15.6 has wifi only -- has number pad