Friday, May 20, 2016

Apple iPhone 4 Spec Review

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
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
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
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
16GB or 32GB flash drive
High Definition Video play back
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
Two cameras view for video call
HD Video Recording and Editing
iOS 4
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)
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)
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

  1. 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)
  2. Retina display caused the yellow tint on the screen permanently. This problem also happens to iPad 2
  3. Sometimes the back camera stop function permanently at some point. The rear camera white balance is not working 
  4. The iPhone 4 glass screen is easily scratches or breaks.
  5. The iPhone 4 heat and battery issues problem - It heat up and consume battery very fast within an hour or so (read)
Assisted GPS
Digital compass

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