Apple iPhone 4 Spec Review

Specifications	Details
Network	GSM model: UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz) CDMA model: CDMA EV-DO Rev. A (800, 1900 MHz) 802.11b/g/n Wi-Fi (802.11n 2.4GHz only) Bluetooth 2.1 + EDR wireless technology
Display	Retina display 3.5-inch (diagonal) widescreen Multi-Touch display 960-by-640-pixel resolution at 326 ppi 800:1 contrast ratio (typical) 500 cd/m2 max brightness (typical) Fingerprint-resistant oleophobic coating on front and back Support for display of multiple languages and characters simultaneously
Camera	Video recording, HD (720p) up to 30 frames per second with audio 5-megapixel still camera VGA-quality photos and video at up to 30 frames per second with the front camera Tap to focus video or still images LED flash Photo and video geotagging
Sound/Musics	Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV
Memory	16GB or 32GB flash drive
Entertainment	High Definition Video play back
Battery	Built-in rechargeable lithium-ion battery Charging via USB to computer system or power adapter Talk time: Up to 7 hours on 3G | Up to 14 hours on 2G (GSM model only) Standby time: Up to 300 hours Internet use: Up to 6 hours on 3G | Up to 10 hours on Wi-Fi Video playback: Up to 10 hours Audio playback: Up to 40 hours
Features	Two cameras view for video call Multi-Tasking HD Video Recording and Editing
Platform	iOS 4
Connectivity	3.5-mm stereo headphone mini jack PC with USB 2.0 Port Bluetooth 2.1 + EDR Wireless Technology 802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
Size/Weight	Height: 4.5 inches (115.2 mm) Width: 2.31 inches (58.6 mm) Depth: 0.37 inch (9.3 mm) Weight: 4.8 ounces (137 grams)
Specialty	Video calling and Sleek design
The Good	In comparison to all other Smart Phone the iPhone 4 is superior in terms of sleek design, Operating System stability, Smooth scrolling speed, and High Definition Display
Bad Problems	The iPhone 4 problems review by end-user Incorrect (erroneous) reception signal display caused by the way the phone is designed. When users hold the phone by grabbing the side frame the reception signal can drop drastically. This is due to the antenna is built as frame surrounded the body set. This problem can caused call quality and network connection quality (Video) Retina display caused the yellow tint on the screen permanently. This problem also happens to iPad 2 Sometimes the back camera stop function permanently at some point. The rear camera white balance is not working  The iPhone 4 glass screen is easily scratches or breaks. The iPhone 4 heat and battery issues problem - It heat up and consume battery very fast within an hour or so (read)
Location	Assisted GPS Digital compass Wi-Fi Cellular