Mobile Phone Features
GPS also know as Global Positioning System is a navigational system that determines your position but is not able to plan a journey. It involves satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver.
NFC also known as Near Field Communication is a short-range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimeter distance. An example of this in use is on/in a mobile phone, you can blip it and your purchase will be billed to your bank account.
The screen size has an effect on many parts of the mobile phone. For example the screen picture quality will depend on how big the screen is to the number of pixels. A down side of a large screen means a bigger phone which can sometime be inconvenient, but also means the picture would be bigger. The bigger screen would also use up the battery quicker than a smaller screen.
Wireless local area network: a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet. Mobiles have the ability now to connect to this as a way of accessing data and the internet. But connecting to this uses a lot of battery up as it is constantly searching for wifi.