I'm not sure how this keeps happening. The first year I waited at a mall for 5 hours to get the original iPhone. The following year my friend Mark Rein convinced me to see a midnight showing of Hellboy II and then wait outside of an AT&T store all night to get the iPhone 3G. You'd think I'd learn by the third year but once more I was in line at the mall hours before the Apple store opened to get the 3GS. This year I thought it would be different. Apple offered free overnight shipping to anyone who wanted to pre-order the iPhone 4. Figuring everyone would go that route I decided to beat the FedEx trucks and just show up at the mall at 6AM. I'd be in and out in a little over an hour, which would give me a head start on battery life testing on Apple's 4th generation iPhone.

I promise that not all of my decisions play out this poorly. Those who pre-ordered the 4 and requested overnight delivery got their phones early and my one hour wait turned into six hours at the mall, for the fourth year in a row.

Apple's iPhone 4 with Bumper Case

It's a self fulfilling prophecy. Steve gets up on stage, proclaims the iPhone 4 to be the biggest introduction since the original iPhone, and the public flocks to Apple stores to fork over $200 on day one and around $2500 over the course of two years for the privilege. But this isn't 2007. Apple has real competitors in the smartphone space. Android phones have grown in features, polish and popularity. Even Palm entered the race with a competant offering, and Microsoft isn't far behind. It's easy to start a revolution when everyone else is doing the wrong thing, but what about when more companies actually get it? Was Steve justified in his excitement over the 4? That's what we're here to find out today.

Straight on it looks like just another iPhone. You get the black face with a shiny trim. From the side it is the redesign that Apple has needed for a while now. It’s not revolutionary but it’s the type of improvement that makes its predecessor feel old. And that’s exactly what this does. Have a look for yourself:

iPhone 4 (left) vs. iPhone 3GS (right)

The straight lines, smaller dimensions and lack of unnecessary bulk make the 3GS feel like a car from the 90s, unnecessarily curvy. The styling is now so much more compact. Compared to the iPhone 3GS the 4 is around 5% narrower (but no more difficult to type on) and nearly 25% thinner. It even makes the Nexus One look dated:

The iPhone 4 is slightly heavier than the 3GS (4.8oz vs. 4.7oz). You feel the added weight but I wouldn't call it heavy. The front and the back of the iPhone 4 are both made out of glass, and they protrude beyond the stainless steel band that wraps around the phone (more on this controversial decision later). While this gives the 4 an amazing finish, it also makes carrying the phone nerve racking. Coupled with the smaller, more dense form factor I’m now deathly afraid of dropping and shattering this thing. Apple has done a lot to reinforce the glass, however there have been enough reports already of shattered iPhone 4s for me not to feel very safe. Only Apple would think to make the two surfaces most likely to hit something out of glass. It's like making mouse traps out of cheese, something bad is bound to happen.

iPhone 4 (left) vs. iPhone 3GS (right)

The physical buttons (but not their layout) have changed on the 4. The ringer switch has shorter travel and feels sturdier as a result. The volume rocker has been replaced by discrete volume up/down buttons, also very sturdy in feel. The power/lock button is also now made out of stainless steel. Only the home button remains unchanged, although it does seem to make a deeper click when you use it.

The speaker moved to behind the right grill at the bottom of the phone instead of the left. The dock connector thankfully remained unchanged. It looks like Apple is committed to maintaining this connector until it makes the jump to something wireless (or optical?).

The back of the phone is pretty. Apple broke with tradition and finally included a single LED flash on the phone. The flash comes on in low light conditions and is enough to take shots in total darkness.

The camera has been upgraded to a low noise 5MP sensor. It can shoot stills at up to 2592 x 1936 or video at 1280 x 720 @ 30 fps. We’ll go into greater detail on its quality in the camera section. The iPhone 4 also adds a front facing camera capable of shooting both photos and video at 640 x 480.

Apple quotes contrast ratio as 1000:1, in our measurements we got very close (952:1). A significant improvement over the 188:1 ratio of the 3GS. Apple achieved this by both dropping black levels and increasing the white levels on the display. Improving both is always fine by me.

Internally the iPhone 4 uses Apple's new A4 SoC, built around an ARM Cortex A8 CPU and a PowerVR SGX GPU. The new SoC is built on a 45nm process and features 512MB of memory on the package. Apple hasn't made CPU clock speed public, but I'm guessing around 800MHz compared to the iPad's 1GHz for reasons you'll see later. GPU clock speed is unknown as well. Having more memory on package is an interesting move by Apple as it makes the iPhone 4 better suited for multitasking compared to the iPad. Also implying that shortly after the iPad gets multitasking it'll be updated to a version with more memory as well.

The iPhone now has an gyroscope as well the rotation sensors of its predecessors. Developers are given full access to the gyroscope making the iPhone 4 capable of becoming a very expensive Wii-mote.

Physical Comparison
  Apple iPhone 4 Apple iPhone 3GS HTC EVO 4G (Qualcomm Snapdragon QSD8650) HTC Droid Incredible (Qualcomm Snapdragon QSD8650) Google Nexus One (Qualcomm Snapdragon QSD8250)
Height 115.2 mm (4.5") 115 mm (4.5") 121.9 mm (4.8") 117.5 mm (4.63") 119 mm (4.7")
Width 58.6 mm (2.31") 62.1 mm (2.44") 66.0 mm (2.6") 58.5 mm (2.30") 59.8 mm (2.35")
Depth 9.3 mm ( 0.37") 12.3 mm (0.48") 12.7 mm (0.5") 11.9 mm (0.47") 11.5 mm (0.45")
Weight 137 g (4.8 oz) 133 g (4.7 oz) 170 g (6.0 oz) 130 g (4.6 oz) 130 g (4.6 oz)
CPU Apple A4 @ ~800MHz Apple/Samsung A3 @ 600MHz Qualcomm Scorpion @ 1GHz Qualcomm Scorpion @ 1GHz Qualcomm Scorpion @ 1GHz
GPU PowerVR SGX 535 PowerVR SGX 535 Adreno 200 Adreno 200 Adreno 200
NAND 16GB or 32GB integrated 16 or 32GB integrated 8GB micro SD 8GB micro SD micro SD
Camera 5MP with LED Flash + Front Facing Camera 3MP 8MP with dual LED Flash + Front Facing Camera 8MP with LED Flash 5MP with LED Flash
Screen 3.5" 640 x 960 LED backlit LCD 3.5" 320 x 480 4.3" 480 x 800 3.7" 480 x 800 AMOLED 3.7" 480 x 800 AMOLED
Battery Integrated 5.254Whr Integrated 4.51Whr Removable 5.5Whr Removable 4.81 Whr Removable 5.18 Whr

The iPhone 4's logic board shrinks in size thanks to further component integration, making room for a much larger battery. The 5.25Whr battery in the iPhone 4 is a 16% increase from what was in the 3GS, and 95% of what HTC put in the EVO 4G. While raw performance improved, it's clear that Apple's focus this time around was battery life. Again, we'll dive into specifics later in the review.

Moving back outside Apple surrounded the phone with a stainless steel band. This band doubles as the 3G, WiFi and Bluetooth antennas. And if you hadn't noticed, it also moonlights as a giant elephant. Let's talk about it.

The Real Story on iPhone 4's Antenna
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  • Dark Legion - Wednesday, June 30, 2010 - link

    Not to be a grammar nazi, but since I'm posting other things anyway...
    "Even Palm entered the race with a competent offering, and Microsoft isn't far behind."

    Both the Evo and Incredible have 8GB built in + room for 16GB microSD (though they come with 8GB microSD?), and the Incredible also has dual LED flash.
  • SimKill - Wednesday, June 30, 2010 - link

    I just printed this to a PDF, and its 75 freaking pages... Holy bleeding batman(in a good way) It's longer than even some magazines, 1 article.


    (I think it would be perfect on a Kindle...hmm next thing to buy :evilgrin: )

    It's going to make for a nice evening read.
  • griffonu - Wednesday, June 30, 2010 - link

    Really cool review! The first informative one in a general noise of non-sense and subjective opinions on the net.

  • Furuno - Wednesday, June 30, 2010 - link

    I don't now what should I say about those $29.99 bumper case... It's even more expensive than my $15 "backup" phone...

    And I wonder why you're so excited about video call? isn't this is an old technology already? I've been doing this since high school with Nokia 3G's phone (forget the name).

    I still prefer N900 tough, mostly because of it's Debian-based OS. As a programmer that's usually works with a Linux machine it's just incredible. Like, wow I can do apt-get install on my phone!

    Oh, and thanks for the in-depth antenna issue explanation! Great article!
  • Griswold - Wednesday, June 30, 2010 - link

    I'd rather like to know what apple says about the bumper cases. They cost them maybe a dollar at the most to make and they sell it for 29 bucks. Thats a fucking fat cash cow right there and it explains why they refuse to hand one out for free. What would you rather have? $2m spent in a couple weeks for satisfied customers or $56m profit from partly annoyed customers?

    (yea I read it, the issue is not really an issue and not everyone is going to buy a bumper case... its anecdotal)
  • JAS - Wednesday, June 30, 2010 - link

    Indeed, Apple's pricing for its Bumper is outrageous. Who would pay $29 for a small piece of plastic? But if you are running a corporation, have a legal responsibility to shareholders to maximize profits, *and* customers are willing to buy a product at the listed price ... ?

    How long will it be until a third-party case maker introduces its own perimeter case for under $10?
  • kmmatney - Wednesday, June 30, 2010 - link

    It won't be long at all. I bought by 3GS rubber case for ~$2 on dealextreme. It's now even cheaper:

    http://www.dealextreme.com/details.dx/sku.11687#op... full view

    I agree that they should give away the cases for free, or heavily discounted . In any case, I don't anyone is crazy to not use a case on such an expensive device. You're going to drop it sometime.
  • Screammit - Thursday, July 1, 2010 - link

    I'd have to agree with the video call bit, other phones (evo in particular) can do video calls over 3g AND can interface with computers through applications like Fring and Skype. I'm sure the video quality to only other iphone 4 users is stellar, especially over wifi, but isn't it a tad restrictive?
  • archcommus - Wednesday, June 30, 2010 - link

    I'm sorry, as much as I love Anandtech and Anand's in-depth and candid articles in particular, the bias here towards Apple is extremely strong. This article is night and day compared to the EVO review just posted. This is direct, interesting, discusses real impressions - EVO review was just a list of facts and things we mostly already knew. Honestly, it shouldn't have even been posted. I've gotten similar feelings about other Android reviews (Droid review 6 months after release? really?). I come to Anandtech to expect this level of quality in all articles, regardless of personal preference. As I said, I usually love your content Anand, but really the only thing I'm following of yours now are your SSD articles. All the rest of your attention goes towards Mac/iPhone.
  • Griswold - Wednesday, June 30, 2010 - link

    Have to agree, even though it assured me that my plan to get that phone is a good plan.

    Too much apple brown nosing.

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