Apple’s iPhone 4 has been rated as one of the best smartphones in the history of iPhones. Specially the factory unlocked iPhone 4 has been in great demand. iPhone 4, factory unlocked, is an iPhone officially unlocked by Apple. It is better than a locked iPhone 4 in two ways:-

1. First, you need not unlock it as it is already unlocked.

2. Second, you need not unlock your iPhone every time the software gets updated.

You can use your factory unlocked iPhone 4 anywhere in the world. The IMEI number of such unlocked iPhone has been saved as unlocked in Apple’s database. GSM technology is best suited for a factory unlocked iPhone 4. Since GSM used convenient SIM cards, it is easy to switch between carriers and phones easily. Factory unlocked iPhone 4 is really cool. It will get activated with any SIM of any carrier of any country. The factory unlocked iPhone 4G price is highly affordable. The features and the functionality again positions Apple as the leader in the market. Some of the flashing features of iPhone 4 include:- unlock iphone

Size and weight

Height: 115.2 mm

Width: 58.6 mm

Depth: 9.3 mm

Weight: 137 grams

Capacity

16GB or 32GB flash drive

Colour

White or black

Display

Retina display

3.5-inch (diagonal) widescreen Multi-Touch display

960×640-pixel resolution at 326 ppi

800:1 contrast ratio (typical)

Fingerprint-resistant oleophobic coating front and back

Support for display of multiple languages and characters simultaneously

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

Mobile and wireless

UMTS/HSDPA/HSUPA (850, 900, 1900, 2100MHz)

GSM/EDGE (850, 900, 1800, 1900MHz)

Wi-Fi 802.11b/g/n (802.11n 2.4GHz only)

Bluetooth 2.1 + EDR wireless technology

Location

Assisted GPS

Digital compass

Wi-Fi

Mobile

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

Sensors

3-axis gyro

Accelerometer

Proximity sensor

Ambient light sensor

In simple words, this smartphone is a real feast for those who love iPhones.