Facing touch issues

[Manishchhabria]

Recently i hve been facing some weird issues wth my xperia sp.
Sometimes i see a ring or a circle whenever i tuch the screen
Screen wrks automatically lke certain wrds r typed even b4 tuching tht letter.somethng lke air guesture
While using chrome when i try to scroll the page the page gets zoom in nd out instead of scrolling.
I have to restart the phne to get rid of these features..
ANYONE ELSE FACING THESE ISSUES OR GOT SOME ADVICE TO AVOID THESE KIND OF ISSUES..
PLZ HELPPPP..

[Key1]

The circle touch comes when the phone detects your finger temperature.Smart phones like SP have a feature in display  touch technology which detects finger temperature and then there is no any need to touch the screen physically , you can do the touches without touching the display. Other phones like my previous phone (Nokia N900) does not have such a thing!

But i really don't know how to active or deactivate this feature!:smileyquestion: