IPhone 4 32gb
DESCRIPTION
Cellular and wireless
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
Bluetooth 2.1 EDR wireless technology
Display
Retina display
3.5-inch (diagonal) widescreen Multi-Touch display
960-by-640-pixel resolution at 326 ppi
800:1 contrast ratio (typical)
Fingerprint-resistant oleophobic coating on front and back
Support for display of multiple languages and characters simultaneously
Power and battery
Built-in rechargeable lithium-ion battery
Charging via USB to computer system or power adapter
Talk time: Up to 7 hours on 3G
Up to 14 hours on 2G
Standby time: Up to 300 hours
Internet use: Up to 6 hours on 3G
Up to 10 hours on Wi-Fi
Video playback: Up to 10 hours
Audio playback: Up to 40 hours