That practically wipes out any advantage to being able to assign different rings to various phone book entries. Battery life is excellent with the standard battery. Samsung claims 2.5 hours of talk time, and up to 150 hours of standby time. The build quality on the phone is excellent, and it puts the Motorola Timeport to shame. The phone has a rock solid feel that makes you believe you could do anything to it without inflicting any damage.
Build quality is perhaps one of the phone s greatest assets.
The menu layout in the 8580 is great, and it is arguable just as good as the menus found in the Nokia 61xx phones. The generous proportions of the display help there too, since it allows the phone to display a large amounts of information simultaneously. However, all is not rosy in the user interface department. This phone has more quirks that any phone I ve tried in ages. Some of the quirks are just curiosities, while others are downright annoying.