Tech
Apple iPhone 4: Everything you need to know
Apple on Monday released its highly anticipated next-generation smartphone, the iPhone 4. Here's everything you need to know.

Apple on Monday released its highly anticipated next-generation smartphone, the iPhone 4.
Here's everything you need to know:
Availability
- Available in-store June 24.
- Pre-orders start June 15 for the U.S., France, U.K., Germany and Japan.
- 16GB model $199; 32GB model $299.
- Available in black and white.
- The iPhone 3GS now sells for $99.
What's new: outside
- Yes, the prototype leaked by Gizmodo was the real deal.
- What's out: the curved look with metal back. What's in: completely flat, with a thicker edge that's a band of stainless steel alloy (5X stronger than steel) that serves as the phone's antenna.
- At 9.3 millimeters, it's 34 percent thinner than the iPhone 3GS and is currently the thinnest smartphone on the market.
- "Retina Display": Four times the depth of 3GS. 3.5-inch multitouch IPS ("in-plane switching"), with 960?by?640 resolution. 320 pixels per inch. 800:1 contrast ratio. Oleophobic coating.
- Front- and back-facing cameras. Back: 5-megapixel with LED flash, supports HD video. Front: VGA, up to 30fps.
- It has split circular buttons for volume.
- Second microphone for noise cancellation.
- Micro-SIM standard.
- Dimensions: 4.5 in. tall, 2.31 in. wide, 0.37 in. thick. Weight: 4.8 ounces. (a hair heavier than 3GS)
What's new: inside
- Processor: Apple A4, the same chip used by the iPad.
- Battery: 16 percent bigger than 3GS; rated for 40 percent more talk time. Ratings: 7 hours talk; 6 hours 3G browsing; 10 hours Wi-Fi browsing; 10 hours video; 40 hours music; 300 hours standby.
- Three-axis gyroscope joins existing accelerometer and compass.
- Connectivity: 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
What's new: software
- iPhone OS becomes iOS; the new version is iOS 4.
- Selective multitasking.
- App folders for home screen.
- FaceTime: videoconferencing over Wi-Fi only in 2010.
- iMovie for iPhone, with up to 720p support.
- iBooks: purchases load to iPhone, iPod, iPad (read: iOS devices) for no extra charge.
- Photo and video geotagging.
- Unified e-mail inbox.
- Home screen wallpaper.
Watch Apple CEO Steve Jobs unveil the device: