1. Typically personal Smartphones and tablets are expensive and high resale value, incorporate with their portability, this may lead to theft or make target to break vehicle glass.
2. Smartphones has a small internal antenna for receiving and transmitting calls which are not as much sensitive. This could cause limit reception of calls when the signal is week or while the cube is moving fast. Also the GPS sensitivity can be low in wi-fi enables devices because it requires proper cellular connectivity for update the location.
3. Some inexpensive mobile phones might be good as well bit harder to operate more efficiently, this would make cabbies difficult to accept, reject and find locations . Sometimes upgraded applications cannot run in older version of phones and its operating system.
4.It is not recommended to leave in parked taxis, because the pan temperature may exceed the tolerance range. However cabbies more often take the device with them, sometimes this will drop or broken and GPS will locate only the device not the parked vehicle.
5. Mobile phones are not supposed to design to communicate with taxi meters, so surge pricing is a common barrier of using Smartphones. The mobile phone has several entertainment features which could distract the driver and that may cause safety concerns. So separate software to lock or monitor the driver’s behaviour.