The Opal q4 smartphone has a 1.2GHz quad-core processor, 4.4-inch display, Android 4.4 operating system, 3.2MP rear camera, 1.3MP front camera, 1.2GHz processor, 4GB of storage and 512MB of RAM. It also has features like Bluetooth, GPS, FM radio, expandable storage up to 32GB and a 1500mAh battery. The document discusses how 3G networks allow for faster data transmission and enable services like video calls, location-based services and easier access to media.