I recommend a iphone to make the delivery service more efficient.The reason i chose the iphone is because the iphone has features such as it has fast wifi connection, so you can connect and browse to get all the information you need wherever there is connection, it also has a map app which is very useful as you will less likely get lost, as it will show you all the shortcuts and where you are at.
The Iphone is also useful because the iphone also has a notebook app where you can write all the information needed such as address, how much they have to pay, this makes it even more useful because you won't have to carry lots of paper round with you when you can have all the information on your phone, and you will be even more safer knowing that you won't lose the papers because all the information you need will be in your phone.
Also the Iphone has a Calculator therefore it'll be handy to have it with you in case you need to count up the total of something if needed, also the Iphone has a 'reminders app' so you can add reminders to go off at certain times, like when you need to be somewhere at a certain time or if you have certain delivery's to be delivered at a certain time.
Lastly the Iphone has a app store therefore you can download any app that you need, this could come in handy depending on what kinds of apps you are looking for.
