Airtime
This is your monthly entitlement to mobile data, minutes for calling and text messages. You select this with your SIM package with data allowance typically being the most prominent feature.
AMOLED
This is an advancement on the LCD-style mobile screens. It's an Active-Matrix Organic Light Emitting Diode (AMOLED) that utilises newer technology that provides improved visuals and better efficiency with your battery.
Android
A type of smartphone operating system was created, developed, and maintained by Google. It is regularly updated with new instalments to the devices of Fairphone, Samsung, Google Pixels, Sony and HTC.
Apple CarPlay/Android Auto (mirror link/screen)
A safety feature that allows you to use certain functions of your smartphone while driving in a car. Once connected by Bluetooth or wire, cars with this feature will allow you to use maps, music, podcasts, phone calls and messages in a format that resembles the operating system of your Apple iOS or Android smartphone.
Assisted GPS
A GPS but better, assisted GPS uses cell tower data to help locate a device more accurately and faster so you receive guidance you can trust.
Audio Jack
This is the plug-in for earphones and headphones into your device, typically requiring a 3.5mm audio jack cable. However, this is not as common on newer devices with wireless Bluetooth and USB-C being preferred connection methods for smartphone audio.
Auto Focus
Your mobile phone's camera will likely have a feature to focus your display on a subject to be the focal point of the photo. This is performed typically without user intervention by tapping on a part of their display to focus on a subject, instead the intelligent software of your device can do this on its own.