If you want something lighter than the ThinkPad L440, then consider the ThinkPad S431 Ultrabook which has a base price of $659.12. MS Office is a $139 option. This ultrabook weighs in at 3.92lbs which is significantly lighter than the L440. However, there are two caveats:
1. This has the prior generation Ivy Bridge Core i3 CPU. Assuming the same clockspeed, Haswell CPUs are 6% more powerful so it is a minor difference. The major difference is the integrated graphics core. The Intel HD 4600 in Haswell is roughly 33% more powerful than the Intel HD 4000 in Ivy Bridge. For every day use like watching videos there is no difference in performance. You will only notice a difference if you were to play games.
2. There is no Hard Drive option. It comes with a 128GB SSD and there is no option for a larger capacity SSD.
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