Iphone 4 | iPhone 3GS |
| High-resolution Retina display 960-by-640 resolution 326 ppi Multi-Touch | 480-by-320 resolution 163 ppi Multi-Touc |
| 5 megapixels LED flash Backside illumination sensor Autofocus Tap to focus Front camera with VGA resolution | 3 megapixels Autofocus Tap to focus |
| HD video recording Tap to focus while recording LED light | VGA video recording Tap to focus while recording |
| Multi-Touch 802.11b/g/n Wi-Fi3 7.2-Mbps HSDPA 5.8-Mbps HSUPA GPS Three-axis gyro Apple A4 processor Dual-mic noise suppression | Multi-Touch 802.11b/g Wi-Fi 7.2-Mbps HSDPA GPS Accelerometer |
| 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
Audio playback: Up to 40 hours
Video playback: Up to 10 hours | Talk time: Up to 5 hours on 3G; up to 12 hours on 2G
Standby time: Up to 300 hours
Internet use: Up to 5 hours on 3G; up to 9 hours on Wi-Fi
Audio playback: Up to 30 hours
Video playback: Up to 10 hours |
