More about smartphone sensors

Here I was able to get some things to load correctly so you can look up more about the details of all sensors yourselves. IF you think like I do this just justifies general paranoia in humankind about the real purpose of Smartphones (and it isn't to make phone calls). If you take any time at all with any intelligence at all you can see a smartphone is for governments or criminals gathering information about the owners of smartphones worldwide. The phone itself is a way to monitor everything about the owner in every way by governments and criminals worldwide.

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What is smartphone sensor? - Definition from WhatIs.com

• An accelerometer detects acceleration, tilt and vibration to determine movement and orientation.
• A gyroscope identifies up/down, left/right and rotation around three axes for more complex orientation details.
• A light sensor detects data about lighting levels in the environment to adapt the display accordingly. 
• A proximity sensor detects when the the phone is held to the face to make or take a call, so the touch screen display can be disabled to avoid unintended input.
• A fingerprint sensor can enable biometric verification for secure device and website authentication as well as mobile payment.
• A magnetometer detects the direction of magnetic north and, in conjunction with GPS, determines the user's location. 
• An infrared sensor can be used to identify user movements for gesture recognition.

In this video, Engineer Guy takes a smartphone apart and explains how the accelerometer works. He also shares the essential idea underlying the micro-electromechanical systems (MEMS) production of these devices: