Iphone 4 - Hardware Specifications

Operating System: iOS 4
Memory: 16GB or 32GB versions available
Display: 3.5-inch (diagonal) widescreen Multi-Touch retina display, 960-by-640-pixel resolution at 326 ppi, 800:1 contrast ratio (typical)
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
Digital Camera: 5.0MP, Video recording, HD (720p) up to 30 frames per second with audio
Battery: Rechargeable lithium-ion, 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
Size: 4.5 x 2.31 x 0.37 in (115.2 x 58.6 x 9.3 mm)
Weight: 4.8 ounces (137 grams)