EDIT: Mine is a UX305FA, the one with less powerful Core M processor. It's slightly slower than my Thinkpad x220, which has an older i7. So it's not a powerf

EDIT: Mine is a UX305FA, the one with less powerful Core M processor. It's slightly slower than my Thinkpad x220, which has an older i7. So it's not a powerful machine, and I assume less powerful processor means better battery life than the faster x305's that have come out since I got mine.