A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic or electrostatic field, or a beam of electromagnetic radiation (infrared, for instance), and looks for changes in the field or return signal.
Nearly every Nokia smartphone nowadays comes with inbuilt proximity sensors. These sensors are used to turn the screen off when you answer the call to avoid accidental contact with the skin. But we have found some cool apps which make a better use of these sensors in day to day life.
Travelling in a rush environment ? Cant look at the screen to accept the incoming call. Install autohello it makes answering calls easy without the touch of a button. AutoHello allows you to answer an incoming call simply by picking up the phone and putting it next to your ear! Save that extra tap-swipe! It doesn’t use the accelerometer so the battery impact is minimal ! AutoHello runs in the background, and auto-starts with your phone and it can be disabled from the options.
Touchscreen phones responds to touchinputs on the screen and it might accidently call someone when it is in your pocket. PocketLock is a one kind of app it locks your phone when inside your pocket or bag, and unlocks when taken out. No more need for the lock button on the phone! PocketLock runs in the background, and auto-starts with your phone and can be disabled from the options. The application is very simple, yet powerful!
Cool app for lock/unlock your smartphone by double tap on proximity sensor. Plus just close the sensor for 3 seconds and phone will lock.