The T650 houses a 1.9″ 262K color TFT screen which is quite small by today’s standards and by proportion to the overall size of the phone.
The up side is that the text and graphics are extremely fine. Also, visibility under direct sunlight is great and color reproduction is excellent. Sony Ericsson says that the screen is covered by a special material that is extremely resistant to scratches. They appear to be telling the truth, as we have not managed to scratch it during our testing period.
Messaging on the T650 is a generally pleasant experience, thanks much to the intuitive and lag-free user interface. SMS, MMS, and SMTP/POP3 email are supported. The T9 predictive text works well, and you can, of course, add your own words to the dictionary. Apart from predicting words, the system is also able to predict phrases based on your past typing habits. In other words the screen will prompt you for the next word after you have finished typing the previous one. You can choose to ignore the prediction by continuing to type, or elect to use the suggestion by nudging the D-pad.
The PhotoDJ and Video DJ applications that are bundled with Sony Ericsson T650 are quite fun to use. The Photo DJ is used to adjust the exposure and contrast of pictures, deal with red-eye removal, and to add text stamping and handy special effects. The best part is that the program is able to produce output at the exact same resolution as the original source file. The Video DJ apps allows you to edit your 3GP videos.
The overall performance of the Sony Ericsson T650 is reasonable. The camera, music player, and call functions are all up to par.