You can't make a phone that everyone loves and Apple is not even trying. Much like any other iPhone so far, the iPhone 4 is a phone that everybody loves AND hates.
Apple’s latest is always the greatest – you have to give them that. Sometimes it seems they put less effort into making it than in letting people know they did. But with the Apple iPhone 4, they were obviously hard at work. The 4th generation iPhone has an all new look, new feel and plenty of new skill. We already caught a glimpse of the iOS4. But there’s much more: a 1GHz chip, two cameras, HD video and of course the Retina display – the highest-res screen we’ve seen so far on a GSM phone. Surely there are still enough blank spots on the feature list but that’s Apple and its iPhone. Compromises are being made in every phone out there anyway. But the simple fact is Number 4 is the best iPhone to-date. Let's see how good that is.
Key features
Quad-band GSM and quad-band 3G support with 7.2 Mbps HSDPA and 5.76 Mbps HSUPA
3.5" 16M-color LED-backlit TFT capacitive touchscreen of 640 x 960 px resolution
Scratch-resistant glass front and rear, with fingerprint-resistant coating
1GHz Apple A4 SoC; 512MB of RAM
5 MP autofocus camera with LED flash and touch focus
720p video recording at 30fps
Wi-Fi 802.11b/g/n
GPS with A-GPS connectivity; digital compass
16/32GB storage options
Accelerometer, proximity sensor and three-axis gyro sensor
Active noise cancellation with a dedicated secondary microphone
Standard 3.5 mm audio jack, stereo Bluetooth v2.1
Excellent audio output quality
Slim waistline at only 9.3mm
Secondary front-facing camera
Some degree of multitasking
Rich AppStore
Main disadvantages
Hardware design is prone to reception issues
MicroSIM card support only
No Flash support in the web browser
No true multitasking for all applications
FaceTime video calls work only over Wi-Fi
No file transfer over Bluetooth or USB Mass Storage mode
No hardware shutter key for the camera
No FM radio
No stereo speakers
No microSD card slot
No smart dialing
Too dependent on iTunes for loading multimedia content
Poor loudspeaker performance
As you can see, most of the main disadvantages are simply passed from one generation to the next but - whatever iPhone you’re coming from - the Number 4 will tick most of your boxes. via
GSMarena