Cost of Nokia 5800 XpressMusic - Qrs1500
Cost of iPhone 3G 8GB - Qrs2500 (QL Classified )

Camera of Nokia 5800 XpressMusic - 3.2MP AutoFocus
Camera of iPhone 3G 8GB - 2MP

Memory of Nokia 5800 XpressMusic - 8GB till 16GB(MicroSD)
Memory of iPhone 3G 8GB - 8GB, 16GB,32GB

Touch Screen of Nokia 5800 XpressMusic - Resistive
Touch Screen of iPhone 3G 8GB - Capacitative(Better)

Build Quality of Nokia 5800 XpressMusic - Feels Weak
Build Quality of iPhone 3G 8GB - Strong body