Not all cell phones have GPS tracking chips. The only ones that have tracking chips are the smart phones, such as an iphone.
SIM chips
New cell phones get released very often, at least every 6 months there are new models released by all cell phones manufacturers.
These used cell phones are returned to the manufacturers. Those companies then either refurbish them and resell them, or extract the parts out of them that can be recycled.
Many modern cell phones have replaceable batteries. These include phones by Samsung, HTC, and other manufacturers. However, the newest phones, which strive for being thinner, have embedded batteries.
The Mobile Shop specializes in carrying different cell phones. Here one can purchase cell phones from a variety of manufacturers such as Apple, Sony, and Samsung.
Most smart phones are now touch screen capable, which you can activate with your finger, or a stylus pen. The top manufacturers of these type of phones include Apple (iPhone), HTC, LG, Huawei and Samsung.
It is a black mineral used in cell phones and computer chips, it is found in the Eastern Regions.
Texas Instruments
According to http://www.cellphones.ca/cell-phones/manufacturers/Pantech/reviews/expert/, they have a 3.5 star rating. For being cheaper, that is not a bad rating at all.
Qualcomm is not a feature but a communication technology company that designs chips for use inside of cell phones.
There are many cell phone manufacturers scattered world wide. The most popular ones are: US, Canada, UK, Japan, Finland and China.