iphone 4 Review

In worldwide Developers confrence (WWWDC) Tuesday 8 June 2010, iPhone 4 is officially revealed to the customer by Steve Jobs, Apple CEO. Unfortunately the specification does not expose so detail. Steve Job just told about the dimension of iPhone. He considered that iphone 4 is slimmer than iPhone 3GS. For more details, see the table belows: 

General	2G Network	GSM 850 / 900 / 1800 / 1900
	3G Network	HSDPA 850 / 900 / 1900 / 2100
	Announced	2010, June
	Status	Available. Released 2010, June
Size	Dimensions	115.2 x 58.6 x 9.3 mm
	Weight	137 g
Display	Type	LED-backlit IPS TFT, capacitive touchscreen, 16M colors
	Size	640 x 960 pixels, 3.5 inches
		- Scratch-resistant oleophobic surface
		- Multi-touch input method
		- Accelerometer sensor for auto-rotate
		- Three-axis gyro sensor
		- Proximity sensor for auto turn-off
Sound	Alert types	Vibration, MP3 ringtones
	Loudspeaker	Yes
	3.5mm jack	Yes, check quality
Memory	Phonebook	Practically unlimited entries and fields, Photocall
	Call records	100 received, dialed and missed calls
	Internal	16/32 GB storage, 512 MB RAM
	Card slot	No
Data	GPRS	Class 10 (4+1/3+2 slots), 32 - 48 kbps
	EDGE	Class 10, 236.8 kbps
	3G	HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
	WLAN	Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
	Bluetooth	Yes, v2.1 with A2DP
	Infrared port	No
	USB	Yes, v2.0
Camera	Primary	5 MP, 2592 x 1944 pixels, autofocus, LED flash, check quality
	Features	Touch focus, geo-tagging
	Video	Yes, 720p@30fps, LED video light, geo-tagging, check quality
	Secondary	Yes, videocalling over Wi-Fi only
Features	OS	iOS 4
	CPU	1 GHz ARM Cortex-A8 processor, PowerVR SGX535GPU, Apple A4 chipset
	Messaging	SMS (threaded view), MMS, Email, Push Email
	Browser	HTML (Safari)
	Radio	No
	Games	Downloadable, incl. motion-based
	Colors	Black, White
	GPS	Yes, with A-GPS support
	Java	No
		- MicroSIM card support only
		- Scratch-resistant glass back panel
		- Active noise cancellation with dedicated mic
		- Digital compass
		- Google Maps
		- Audio/video player and editor
		- Voice command/dial
		- TV-out
Battery		Standard battery, Li-Po 1420mAh
	Stand-by	Up to 300 h (2G) / Up to 300 h (3G)
	Talk time	Up to 14 h (2G) / Up to 7 h (3G)
	Music play	Up to 40 h