Mine was a 110 euro smart phone I bought 3 years ago, great phone,use it for calls, texts, google maps, youtube etc . I honestly don't think you need to be spending much more on one in the taxi game. The main reason I wouldn't buy an expensive phone is you may as well have a bundle of money lying on your dash, it is just asking to be robbed if you are ever mugged. no mugger would want my 3 year old phone.