Michell over at Sony Ericsson Unofficial Blog spent some time making an Xperia X1 comparison video.

He compared the X1 to five other phones from Sony Ericsson. The video starts by showing all six phones together, followed by a side by side comparison of the phones from all angles.

The first phone Michell compares with the X1 is the Sony Ericsson P990. At the time the P990 being a very popular phone, however next to the Xperia X1, it looks quite dated and clunky. As well as the P990 the video also shows comparisons between the M600, W910, K850 and the W960 to the Xperia X1.