iPhone 4

iPhone Specs:
Released:  November 24, 2010

Capacity:  8/16/32 GB storage, 512 MB RAM
Display:  LED-backlit IPS TFT, capacitive touchscreen, 16M colors @ 640 x 960 pixels, 3.5 inches (~330 ppi pixel density) -
Connection:  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 WLAN Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Bluetooth Yes, v2.1 with A2DP USB Yes, v2.0 2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 900 / 1900 / 2100
Batery Life (Audio):  Li-Po 1420mAh; Standby Up to 300 h (2G) / Up to 300 h (3G); Talk-time: Up to 14 h (2G) / Up to 7 h (3G); Music Up to 40 h; Video up to 10h
Batery Life (Video):  
Camera:  Yes, 5 MP, 2592 x 1936 pixels, autofocus, LED flash, Touch focus, geo-tagging, HDR, Video:720p@30fps, LED video light,
Size:  115.2 x 58.6 x 9.3 mm
Weight:  137 g (4.832 oz)

iPhone Expert Comments:

While the last iPhone – the 3GS – hung its hat on the speed improvements it offered over previous models, for the iPhone 4, it’s all about the visuals.From the phone’s groundbreaking Retina Display screen to its 5-megapixel camera, from HD video recording to FaceTime video calls, the iPhone 4’s top features are all visual. The screen uses a denser pixel arrangement – though they have the same size screen, the iPhone 4 is 960 x 480, the 3GS is 480 x 320 – to create more-detailed images and text. As a result, text is sharper and easier to read. The iPhone 4 also added some long-desired camera features, including a 5-megapixel camera and camera flash, which produce great-looking images. Infact, Apple equipped the iPhone 4 with two cameras. The back camera records 720p HD video, while the user-facing camera is used with the FaceTime video chat feature. This is the first iPhone to employ Apple’s A4 processor which provides a moderate speed increase over the iPhone 3GS. Perhaps the most well-known problem with the iPhone 4 are the reception issues that can be caused by placing a hand or finger over the antenna on the left-hand side of the phone. There is no plastic on the exterior of the iPhone 4, and the standard silver bezel that was the trim to all previous iPhones is now gone. The front and back is now glass. The pros such as Very high-resolution display, 720p Video recording and FaceTime Video Conferencing certainly outruns the cons like and Wireless connection issues and unavailability of 64 GB option

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