This is a great video if you are thinking of buying one and want to see what the differences are between them.
We check out such factors as page turn speed, menu features, hardware differences and more! There are quite a number of hardware features. For example, the Sony PRS-650 has a headphone audio jack and volume, the PRS-350 cannot do audio at all.
There are also subtle differences with the unit aesthetics of the devices. The PRS-650 looks really nice with its chrome finish at the top, bottom and sides of the e-reader. The PRS-350 has more of plastic type finish all over the top and sides.
Both of these devices come with Stylus, this allows pin point procession to type on the virtual keyboard. From our experiences we found its easy to do the day to day tasks merely by clicking on things with our fingers.