Merits are many so no need to list it but demerits are often gets unnoticed or neglected. Ethically itself there are vast of demerits, the cell camera, the voice recording features could be used to intrude some one's privacy and also with the increase in number of mobiles, people are becoming immobile. Because everything can be done by just making one phone call, or one text msg, or paying bills online with internet services. You loose much of your physical activity although it is gud that it saves time. Now a days people have lost sense of public decorum. For example, loud and irritating ringtones, shouting aloud in public places, disturbing others with their chitchat in offices etc.

On the health aspects too mobiles are provene to be detrimental over long term use. The radiations themselves are dangerous to males if they keep the mobile in their pockets. If you keep them near your chest, it is again dangerous to your heart. If you keep talking prolongedly it is dangerous to your e ...more

If you are using it only as a communication means than it is all merits, but if yu are using it with blue tooth tech, and mp3 and all other things than its all demerits. well only addditional point can be the camera, if used for good purpose.

Only merits if used for good purpose.

Convinient and can be connected,
distrubance in the classroom, irritating commercials.

Childrens may get sickness good communication instrument