Apart from voice input, the common features of these fully featured GPS units include GPS accessories, car holder, car power adapter, USB cable, dashboard disc, remote control, vehicle mount, docking station, mounting bracket, carrying case, automotive windshield mount, navigation instructions, audible assistance, street name announcement, voice command recognition and navigation instructions, street name announcement navigational instructions.
Their service features include speed assistant, speed ETA, lane assistant, GPS PC connection, USB connectivity, Bluetooth, hi-speed USB, calculator, custom POIs, built-in speaker, automatic routing, JPEG photo playback, built-in FM modulator, built-in AAA travel information, 2D/3D map perspective etc.
The weight of such fully featured GPS devices is usually between 6.2 oz to 7.8 oz, while their pricing varies from $100 to $600+
Having seen the quality of the voice activated GPS navigation units, it is time to take a look at the top contenders from various vendors.