A look at the iPhone 4

iPhone 4 Header

Key Features:

  • Retina Display – 3.5-inch, 940×640 resolution, 326 pixels per inch.
  • Apple A4 CPU/GPU Architecture (same as the iPad).
  • Rear Camera – 5-megapixel auto-focus lens + LED flash (will record 720p video at 30fps).
  • Front Camera – VGA for “FaceTime” (video calling over Wi-Fi).
  • Gyroscope to detect motion on 3 axis.
  • 802.11n Wi-Fi.
  • Improved battery life (40h audio up from 30h with the iPhone 3GS).
  • 24% thinner than the iPhone 3GS.
  • iOS version 4.0 (previously named iPhone OS 4.0)

It has a couple of weeks now, in which I have owned the iPhone 4. A couple of weeks, which mainly consisted of me drooling like a puppy in love, every time I unlock the phone and become entranced by the most gorgeous screen I have ever seen on any device, period. Apple’s so called Retina Display, features an IPS panel that has been produced by LG. It’s main standing feature is the fact that the display packs an unmatched amount of pixels into a 3.5″ screen. Infact, the panel is so good that you cannot, I repeat cannot physically see the pixels with the human eye. This, of course has a rather odd effect if you should use any other present generation phone – their display looks completely poor by comparison. This is reinforced by the screen comparisons recently shown on AnandTech’s iPhone 4 review. Make no mistake, the resolution is gorgeous and the sheer clarity of the screen is simply outstanding.

It is safe to say that the iPhone 3G is now showing it’s age with today’s current generation of applications and games available on the appstore. That 412MHz Arm 11 core is struggling hugely, especially with the latest OS4.0 release, now known as iOS4.0, which is apparently sluggish on the 3G. Before selling my 3G, I had installed iOS4.0 onto it and must admit I had no real speed issues with it at the time. The 3Gs is bravely soldiering on with it’s 600MHz Cortex ARM A8, but even that must be feeling the strain now in this day and age with the latest generation of applications.

Hardware

Luckily for us, Apple have seen fit to power the iPhone 4 with the A4 SoC (Silicon on a Chip) that is found on the iPad, and what a screamer this thing is. Running at a variable speed up to 1GHz, and backed up by a gigantic 512mb RAM (twice that of the iPad) the SoC is a workhorse for virtually anything thrown at it. It blows through games, handles applications with ease and best of all – it is incredibly power efficient meaning that the new 1420mAh battery that spans the entire vertical length of the unit offers much greater battery life than both the 3G and the 3Gs. In addition most high end HTC Android phones can only dream of this kind of battery life right now. I have to attest to being once again blown away by the battery life on the phone during general day to day use. My Jailbroken, feature rammed 3G had to be charged at least once a day but I can easily go a full two days right now without a single charge.

A4 SoC

In short – with my 3G I had to be weary of battery life when I used the onboard GPS for mapping functionality, I had to be weary not too play games too much whilst on the move, and I had to watch my video usage – all these key features really ate into the 3G and 3Gs battery life, until now that is. All of these concerns are put to rest with the iPhone 4.

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