iPhone 4: Everything You Need to Know

Apple iPhone 4

Looking for iPhone 5 or 4S info? Check out our guides to the iPhone 5 and iPhone 4S.

Also check out our full Apple iPhone 4 review, the Best iPhone 4 cases, and our iPhone 4 vs. HTC EVO 4G and iPhone 4 vs. Motorola Droid X comparisons. everything iphone 5

Steve Jobs introduced the iPhone 4 today, which he claims offers over 100 new features, though he would focus on only a handful for the keynote. The iPhone 4 looks like the iPhone prototype obtained under questionable circumstances by Gizmodo: stainless steel casing, all-glass front, and a design Jobs describes as the thinnest smartphone on the planet: almost 25 percent thinner than the iPhone 3GS.. Unlike previous iPhones, the iPhone 4 will have volume controls on the side of the phone along with an accessible microSIM tray. The iPhone 4 features a front-facing camera, and the back sports a microphone, 30pin connector for docking, and a speaker, while the top sports a second microphone for noise cancellation, sleep/wake button, and a headset input.

Jobs went on to highlight the bands around the side of the iPhone 4 that caused much speculation in the wake of the leaked prototypes. Jobs identified them as part of the phone’s antenna system, saying the stainless steel band is also a primarily structural element of the device. The antenna supports all the iPhone 4’s wireless capability, from 3G to Wi-Fi to Bluetooth to GPS along with cellular communications.

Apple iPhone 4 Side ShotiPhone 4: Retina Display

The iPhone 4 will also sport what Jobs described as a “retina display” with four times the pixel density of a typical LCD display at a whopping 326 pixels per inch—by far denser than anything else in the consumer electronics market. The result is a 3.5-inch display with a native resolution of 960 by 640 pixels that is actually a higher resolution than the typical human eye is capable of perceiving, when held at a distance of just 10 to 12 inches. Jobs claims the iPhone 4’s display winds up looking like a high quality printed book (albeit that emits light!) rather than a blocky pixellated grid. The iPhone OS automatically handles rendering text and controls at the higher resolution for the iPhone 4, so developers don’t need to do anything to update their applications to look good on the new display…but, of course, if developers want to add higher-resolution graphics to their apps, they will look stunning on the iPhone 4.

iPhone 4: A4 Chip and Gyroscope

The iPhone 4 will also feature an Apple-designed A4 CPU, following along the lines of the processor powering the iPad. Jobs said the A4 processor improved power management, so the iPhone 4 will manage 40 percent more talk time on 3G networks (up to 7 hours), or up to 6 hours of 3G Web browsing or 10 hours of Wi-Fi browsing. The device can also play up to 10 hours of video, 40 hours of music, and should have an standby time of up to 300 hours. The iPhone 4 will also pack up to 32 GB of onboard flash storage, and will offer quad-band HSDPA/HSUPA for mobile broadband speeds up to 7.2Mbps downstream, 4.8Mbps upstream…assuming carrier networks support that technology. The iPhone 4 will also support 802.11n Wi-Fi, assisted GPS, Bluetooth, and packs and accelerometer, compass, proximity sensor, and an ambient light sensor,. The iPhone 4 also sports a gyroscope, which enables six-axis motion sensing…just like a game controller, and iPhone OS 4 will offer developer APIs to leverage the gyroscope: Jobs envisions the gyroscope enabling whole new types of mobile gaming.

Apple iPhone 4 Game ShotsiPhone 4: Camera & iMovie

The iPhone 4 will feature a 5 megapixel camera with a backside-illuminated sensor, which Jobs says increases the amount of light captured by the sensor, resulting in better photographs, particularly in low-light situations. The camera will also record HD video at 720p resolution and 30 frames per second, and the LED flash can be used to light video as well. Like the iPhone 3GS, the iPhone 4 will feature in-phone video editing and enable users to share video the the Internet (think Facebook and YouTube). However, Apple is pushing the video editing envelope with a new iMovie application for iPhone, that enables users to assemble and trim clips and record directly into an iMovie timeline. Users can also add camera photos to their movies (complete with the pan-and-scan Ken Burns effect), and iMovie for iPhone will enable users to add titles and transitions to their videos. The iPhone 4 camera embeds geolocation information in video; iMovie for iPhone can optional display display that information. Users can also add music as a soundtrack to their video, and select from a number of pre-generated themes. iMovie for iPhone will be available as a separate purchase from the App Store for $4.99.

iPhone 4: Bing

Among new features in iOS 4 will be an option to use Microsoft’s Bing as a default search engine; Google will still be the iPhone’s default search, but Yahoo and Bing-powered searches will be available as options. Note that Bing will be taking over the back end for Yahoo’s search services later this year.

iBooks for iPhone

Apple also announced a version of iBooks will be available for iPhone, with feature parity to the iPad edition (complete with previously-announced PDF and annotations support). The applications will be able to synchronize across devices, so users will be able to start reading an iBook on an iPad, then pick up at the same spot on the iPhone. Users will be able to download purchased books to all their supported devices at no extra charge.

Apple iPhone 4 TrioNo Longer iPhone OS 4: iOS 4

Since it won’t do to have an iPad running something called “iPhone OS,” Apple has decided to rename its mobile device operating system to simply “iOS 4,” encompassing all its mobile devices: the iPhone, the iPad, and the iPod touch. iOS 4 will have the features Apple outlined back in April, including a form of multitasking support (so applications like Pandora can stream music in the background while an iPhone user, say, surfs the Web in Safari), a unified Mail inbox that supports multiple services, home screen folders, a Game Center, and improved support for Microsoft Exchange and enterprise users. However, developers will probably be more intrigued by a boatload of new APIs and significantly deepened features. Developers at WWDC will be able to set hands on a release candidate today.

iAds

Jobs also took a moment to highlight Apple’s new in-application advertising platform iAds: according to Jobs, Apple is developing iAds as a revenue channel for developers so they can earn money from applications in ways other than direct sales to users. As outlined last April, Apple is aiming for high amounts of interactivity and engagement with iAds, building on HTML5 technologies rather than the still-industry-standard Adobe Flash. Apple will host all the advertising and handle ad sales, so all applications developers have to do is specify where in the applications the ads should be placed, then collect 60 percent of the revenue from placements in their applications. Apple has only been selling iAds for about two months—they should go live Jule 1—and so far has many major brands on board, including Disney (Jobs is Disney’s biggest single shareholder, remember), Target, Best Buy, Geico, DirecTV, and other major brands. Unlike traditional banner ads that eject users from applications out into Web browsers, iAds run without exiting a user’s application, providing an interactive experience without causing people to leave apps, or lose work or messages: the goal is an engaging experience that users know is “safe” regardless of the app they’re using.

Apple iPhone 4 FaceTimeVideo Calling

Of course, that front-facing camera in the iPhone 4 exists for one and only one purpose: video calls. Jobs demonstrated what Apple is dubbing FaceTime video calling with the iPhone 4. The feature will initially be Wi-Fi only and operate iPhone 4 devices—no word in whether FaceTime will support, say, desktops or notebooks equipped with cameras. Users will be able to switch to the rear-mounted 5 megapixel camera on the iPhone 4 to let callers see what they’re seeing, or stick with the front-facing camera for face-to-face chat. Jobs says Apple plans to work with mobile operators to make FaceTime available over 3G data services. Apple says it plans to ship millions of FaceTime-capable devices this year—and if current iPhone sales are any indicator, they’re right—so iPhone 4 users will have plenty of people to talk to. (How far off is an app called FaceTime Roulette?)

Apple says the technology behind FaceTime will be come an industry standard, and will be supported by other devices and services.

iPhone 4 Pricing and Availability

The iPhone 4 is now available in the U.S. on AT&T, Verizon, and Sprint. Prices start at $99 for the 8GB version with a two-year contract. You can choose a black or white iPhone 4.

If you still want to get a 16GB or 32GB iPhone 4 then you can buy one second-hand, find a refurbished model, or try a big retailer like Best Buy or Walmart.

iOS 5 update, iOS 6 on the way

The iPhone 4 shipped with iOS 4, but can now be updated to iOS 5 via iTunes. This update adds things like a new notifications system and management options, iCloud support, and the iMessage messaging system. You can find a full roundup in Everything you need to know about iOS 5.

Apple has confirmed that iOS 6 will be available for the iPhone 4 in the fall. This will bring lots of new features and a new Maps app, Passbook for tickets, and a host of other improvements. A few things, like Siri and FaceTime on your cellular network, will not work on the iPhone 4, however. You can find out more in iOS 6: What you need to know.

Official iPhone 4 Video

<span class=”mceItemObject” classid=”clsid:D27CDB6E-AE6D-11cf-96B8-444553540000″ id=”ooyalaPlayer_6xq5v_ga5vg8d2″ width=”650″ height=”366″ codebase=”http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab”><span name=”movie” value=”http://player.ooyala.com/player.swf?embedCode=1jMWZnMTrhuYB91MVNZwORpd4ZAaNjuX&version=2″ class=”mceItemParam”></span><span name=”bgcolor” value=”#000000″ class=”mceItemParam”></span><span name=”allowScriptAccess” value=”always” class=”mceItemParam”></span><span name=”allowFullScreen” value=”true” class=”mceItemParam”></span><span name=”flashvars” value=”embedType=noscriptObjectTag&embedCode=1jMWZnMTrhuYB91MVNZwORpd4ZAaNjuX” class=”mceItemParam”></span><span class=”mceItemEmbed” src=”http://player.ooyala.com/player.swf?embedCode=1jMWZnMTrhuYB91MVNZwORpd4ZAaNjuX&version=2″ bgcolor=”#000000″ width=”650″ height=”366″ name=”ooyalaPlayer_6xq5v_ga5vg8d2″ align=”middle” play=”true” loop=”false” allowscriptaccess=”always” allowfullscreen=”true” type=”application/x-shockwave-flash” flashvars=”&embedCode=1jMWZnMTrhuYB91MVNZwORpd4ZAaNjuX” pluginspage=”http://www.adobe.com/go/getflashplayer”></span></span>

iPhone 4 Pictures

iPhone 4 Technical Specifications

Size and 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)

Cellular and wireless

  • UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
  • GSM/EDGE (850, 900, 1800, 1900 MHz)
  • 802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
  • Bluetooth 2.1 + EDR wireless technology

Location

  • Assisted GPS
  • Digital compass
  • Wi-Fi
  • Cellular

Power and 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
  • 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

Mac system requirements

  • Mac computer with USB 2.0 port
  • Mac OS X v10.5.8 or later
  • iTunes 9.2 or later (free download from www.itunes.com/download)
  • iTunes Store account
  • Internet access

Windows system requirements

  • PC with USB 2.0 port
  • Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later
  • iTunes 9.2 or later (free download from www.itunes.com/download)
  • iTunes Store account
  • Internet access

Environmental requirements

  • Operating temperature: 32° to 95° F
    (0° to 35° C)
  • Nonoperating temperature: -4° to 113° F
    (-20° to 45° C)
  • Relative humidity: 5% to 95% noncondensing
  • Maximum operating altitude: 10,000 feet (3000 m)

Capacity

  • 16GB or 32GB flash drive

Color

  • White or black

Display

  • Retina display
  • 3.5-inch (diagonal) widescreen Multi-Touch display
  • 960-by-640-pixel resolution at 326 ppi
  • 800:1 contrast ratio (typical)
  • Fingerprint-resistant oleophobic coating on front and back
  • Support for display of multiple languages and characters simultaneously

Audio playback

  • Frequency response: 20Hz to 20,000Hz
  • 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
  • User-configurable maximum volume limit

TV and video

  • Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
  • Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)

Languages

  • Language support for English (U.S.), English (UK), French (France), German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese, Russian, Polish, Turkish, Ukrainian, Hungarian, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Catalan, and Vietnamese
  • Keyboard support for English (U.S.), English (UK), French (France), French (Canadian), French (Switzerland), German, Traditional Chinese (Handwriting, Pinyin, Zhuyin, Cangjie, Wubihua), Simplified Chinese (Handwriting, Pinyin, Wubihua), Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Estonian, Hungarian, Icelandic, Lithuanian, Latvian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Bulgarian, Serbian (Cyrillic/Latin), Catalan, and Vietnamese
  • Dictionary support (enables predictive text and autocorrect) for English (U.S.), English (UK), French, German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Hungarian, Lithuanian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malaysian, Romanian, Slovak, Croatian, Catalan, and Vietnamese

Camera, photos, and video

  • 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

External buttons and controls

  • Sleep/wake
  • Ring/silent
  • Volume up/down
  • Home

Sensors

  • Three-axis gyro
  • Accelerometer
  • Proximity sensor
  • Ambient light sensor

Connectors and input/output

  • 30-pin dock connector
  • 3.5-mm stereo headphone minijack
  • Built-in speaker
  • Microphone
  • Micro-SIM card tray

Headphones

  • Apple Earphones with Remote and Mic
  • Frequency response: 20Hz to 20,000Hz
  • Impedance: 32 ohms

In the box

  • iPhone 4
  • Apple Earphones with Remote and Mic
  • Dock Connector to USB Cable
  • USB Power Adapter
  • Documentation

Updated 8/12/2012: This article was updated to reflect more recent pricing and updates available for the iPhone 4.

Mobile

The iPhone XS Battery Case's battery has a smaller capacity than previous cases

Apple has been rumored to be working on a new iPhone battery case for the iPhone XS, iPhone XS Max, and iPhone XR. Now, those new cases are finally here, offering seven hours of extra use for each iPhone and are available for $129.
Mobile

C you soon? Rumors swirl of a USB-C port on 2019 iPhones

While it's not been long since the last iPhones launched, rumors for the next iPhone are already surfacing. Apple's 2019 flagship could include a variety of upgrades ranging from a new design to enhanced features.
Mobile

Apple’s iPhone battery offer was reportedly way more popular than expected

As many as 11 million iPhone owners reportedly made use of Apple's cheaper battery replacement offer that launched in 2018 in response to the iPhone throttling debacle — some 10 times more than the company had apparently expected.
Deals

Looking to upgrade? These are the best iPhone deals for January 2019

Apple devices can get expensive, but if you just can't live without iOS, don't despair: We've curated an up-to-date list of all of the absolute best iPhone deals available for January 2019.
Mobile

Biometric phone unlocks can’t be forced by feds, says U.S. judge

Fingerprint and face unlocks used to not be protected by the Fifth Amendment, but that may soon change. A judge in California has ruled biometric unlocking methods of all kinds are protected in the same way as passcodes.
Apple

Apple may be developing a new iPod Touch to woo younger users

Apple may be developing its first new iPod touch model since 2015 as it aims to capture younger users who are not yet ready for their own smartphone, and expand its overall listening base in the future.
Mobile

Want more power, but faster? This new charging tech claims it can deliver

Chunky power bricks and slow charging could be a thing of the past with GaNFast technology from Navitas Semiconductors. By using an alternative to silicon, GaNFast reduces power consumption and boosts output.
Mobile

Join the Apple club with our complete guide to switching from Android to iOS

If Android simply isn’t cutting it for you anymore, then you might be considering Apple’s warm embrace. Here’s how to make the switch from Android to iOS without losing your contacts, sleep, or hair!
Mobile

It’s back! Here’s how to switch to Twitter’s reverse chronological feed

Twitter has finally brought back the reverse chronological feed, allowing you to see your feed based on the newest tweets, rather than using Twitter's algorithm that shows what it thinks you want to see. It's easy to switch.
Mobile

Having trouble logging in? Here’s how to reset your Apple ID password

To use any of Apple's services, you need to have an Apple ID and know your password. Thankfully, there are ways to deal with forgotten passwords and regain access to your account. Here's how to reset your Apple ID password.
Mobile

Turn to these apps to help you in your next hunt for a job

Looking for a job can be a stressful experience, but these days, a simple mobile app can help you to find and apply for jobs all over the country -- here are some of the best job search apps for iOS and Android.
Wearables

Omron HeartGuide brings blood pressure monitoring to your wrist

High blood pressure leads to heart attacks, strokes, and many other health problems, so it's important to keep an eye on. Omron's HeartGuide is a fitness tracking watch that can also monitor your blood pressure from your wrist.
Mobile

Learn how to play YouTube in the background on iOS and Android

We show you how to play YouTube in the background with apps such as Opera, Chrome, and Firefox -- along with the premium offerings like YouTube Premium -- whether you have an Android or iOS device.
Mobile

Android vs. iOS: Which smartphone platform is the best?

If you’re trying to choose a new phone and you’re not sure about the merits and pitfalls of the leading smartphone operating systems, then come on in for a detailed breakdown as we pit Android vs. iOS in various categories.