Apple iPhone 4 offers enhanced performance, a lovely new display, and an improved design. It also adds a ton of sorely needed features, both by itself and through the iOS 4 update.The iPhone 4 is the best pocket computer available today. It has more and better apps than any other device, and runs them very well. Even though the Android Market is growing by leaps and bounds and Android offers a few unique benefits like free Google Navigation, Apple's App Store is still where the action is: it has better apps in almost every single category, most importantly games.
The iPhone 4's Apple A4 processor seems to run faster than the iPhone 3GS, but slower than the iPad. On the BenchTest and BenchMark benchmarking apps and the Google V8 Javascript browser tests, the iPhone 4 came in up to 40 percent faster than the 3GS, often almost evenly spaced between the 3GS and the iPad. The iPhone 4 matched the iPad on the SunSpider JavaScript benchmark and on the time it took to launch Need for Speed Undercover, a complex game.
I clocked consistently faster speeds on Speedtest.net with an iPhone 4 than with a 3GS sitting next to it (as long as I wasn't holding the 4 in a "death grip"). While the 3GS ranges from 700-1800 kbps down, the iPhone 4 consistently downloaded in the 2-2.5 Mbps range.Apple ships some new apps to go with their new phone and new iOS 4. I have mixed feelings about iBooks. It's a beautifully designed ebook and PDF reader, with an integrated store, the ability to sync bookmarks with an iPad, and a great visual bookshelf metaphor for paging through your books. But the 3.5-inch screen doesn't display all that many words, which means you may be flipping pages almost frantically; a phone form factor just isn't the best one for reading books. The roomy iPad is much better.
Features of apple iphone
2G Network - GSM 850 / 900 / 1800 / 1900
3G Network - HSDPA 850 / 900 / 1900 / 2100
Internal - 8/16/32 GB storage, 512 MB RAM
GPRS - Class 10 (4+1/3+2 slots), 32 - 48 kbps
EDGE - Class 10, 236.8 kbps
Speed - HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth - Yes, v2.1 with A2DP
USB - Yes, v2.0
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