| Price- iPhone 4 with 16GB memory will be available for | | | | iPhone 3Gs has a VGA video recording feature as |
| $199 and the 32GB memory turner will be available for | | | | well as Tap to focus feature while recording a clipping. |
| $299. | | | | Technically- iPhone 4 is technically enriched with a multi |
| Display screen- iPhone 4 will have a high resolution | | | | touch feature and an 802.11 b/g/n wi-fi feature as well. |
| display screen with a retina display as its highlight. This | | | | This phone supports 7.2 MBPS HSDPA network and |
| phone has a 960*640 resolution display and has a | | | | also 5.8 MBPS HSUPA broadband services. GPS, |
| 326ppi and a multi touch feature as well. iPhone 3G s | | | | accelerometer, three axis gyro, apple A4 processor, |
| had just a 480*320 resolution screen with a 163ppi and | | | | dual microphone noise suppression are additional |
| a multi touch feature. | | | | benefits in it. iPhone 3G s is having features such as |
| Video calling- iPhone 4 has a face time feature with a | | | | Multi Touch and also GPS and accelerometer |
| ability for allowing its users adapt to video calling. The | | | | features. This phone supports 802.11 b/g wi-fi network |
| users can stay connected via video calling feature | | | | and a 7.2 MBPS HSDPA broadband connectivity. |
| with just a tap of a button and this feature will make | | | | Color- Both the phones i.e. iPhone 4 and iPhone 3G S |
| the users happy as they can watch their best pals on | | | | are available in black and white colors. Note- white |
| phone connecting across the globe. iPhone 4 has two | | | | color of iPhone 3G s is not in production anymore. |
| cameras built in for frontal video chatting and also | | | | Battery life- iPhone 4 offers a talk time of 7 hours on |
| back view chatting. The Back next camera is | | | | a 3G network and 14 hours on a 2G network. The |
| equipped with an LED flash and offers focal length | | | | standby time of iPhone 4 is 300 hours approximately. |
| and also enriches the face time feature. IPhone 3Gs | | | | Its counterpart iPhone 3G s is having a standby time of |
| will users will miss all these jazzy features. | | | | 300 hours and is offered with a talk time of 5 hours on |
| Camera- iPhone 4 has a 5 mega pixel camera and | | | | 3G and 12 hours on 2G. While using Internet, both |
| has a Led flash with a backside illumination sensor and | | | | phones deliver 6 hours talk time on 3G and 10 hours |
| an auto focus feature as well. The frontal camera on | | | | on wi-fi. The audio play back time is 35 hours in both |
| the iPhone 4 will be a VGA resolute camera with a | | | | phone and the video play back is 10 hours and is |
| tap to focus feature. IPhone 3G s is just having 3 | | | | offered as standard. |
| mega pixel camera with an auto focus feature and | | | | Common features- iPhone 3G s and iPhone 4 has |
| has a tap to focus feature as well. | | | | common features such as Multi-tasking, folder options, |
| Video recording- iPhone 4 has a HD video recording | | | | phone usage, iPod, safari browser, Mail, app store, |
| and a tap to focus while recording a clipping. The Led | | | | iTunes store, messages, Maps and compass, voice |
| light assists for better focus with excellent illumination. | | | | control, search, accessibility, keyboard and ibooks. |