samsung s4 is camera lens for
poker analyzer, it is a real cell phone, you can use it make phone call or send message or download music by using your own sim card. this is a kind of smart phone, many lauguage installed, such as english, russian, french, italian, spanish, turkish and so on for all over use.
hd camera inside the phone, it can help you to read cards with barcode fast. from outside you can not see where the camera is. the distance of the camera: 20-44cm or 50-65cm or 70-90cm.
the battery for this phone is changeable, also, there is a battery save system inside the phone, you can use battey very long time for over 5 hours each.