IPhone 4S

IPhone 4s in black finish

3- axis gyro, accelerometer, proximity sensor, ambient light sensor

0.99 W / kg

GSM, EDGE, UMTS, HSDPA, HSUPA, CDMA2000

Wi-Fi, Bluetooth

The iPhone 4s is the fifth smartphone in the iPhone range of Apple. It was unveiled on October 4, 2011 by Phil Schiller.

On the iPhone 4s comes Apple's iOS operating system version 5.0 is used, which is also used on the iPad and the iPod touch. It is mainly served by finger contacts on the multi -touch screen.

The "s" in the model name of the iPhone is the voice control Siri.

Predecessor, the iPhone 4s is the iPhone 4 successor, the iPhone 5, which was available on the German market since September 21, 2012.

Design

Externally the iPhone 4s slightly different from the predecessor. The top of the device there are two notches in the metal frame, one on the left and right side. Moreover, the controls are moved to the left side by a few millimeters to the bottom.

Specifications

The 3.5 -inch " retina " screen of the iPhone 4s has a resolution of 640 × 960 pixels. The device has an Apple A5 dual-core processor, which according to Apple over its predecessor up to twice as much power and should have up to seven times faster graphics performance, as well as a 14.4 Mbit / s instead of 7.2 Mbit / s the iPhone 4 and 3GS enhanced HSDPA maximum speed.

Other new features include an 8- megapixel iSight camera, with the video in 1080p resolution (Full HD) and with a field of view of 56.42 degrees horizontally or vertically 43,90 degrees can be taken a total of two antennas instead a single, integrating the Siri software for the detection and processing of spoken language, and the new iOS 5 operating system. It supports GLONASS in addition to GPS navigation system for the first time.

The iPhone 4s will be offered in both white and black finish with 16, 32 and the first iPhone with 64 GB. To solve the antenna problem of its predecessor, an additional cellular antenna has been integrated. The iPhone will automatically switch as needed to the antenna with better performance.

One criticism is the lower compared to the previous model of battery life. The iPhone 4s is a dual core A5 processor with 800 MHz works (200 MHz clocked slower than in iPad 2), which requires more power than the A4 processor in the iPhone 4 due to higher power consumption. Apple is the maximum standby at 200 hours; its predecessor brought it to 300 hours.

IPhone 4s is a so-called because of the use of the telephone world CDMA and GSM standards. It was the first device that assisted speech recognition Siri.

After the presentation of the iPhone and iPhone 5s 5c in September 2013 is the iPhone 4s from Apple online only offered in an 8- GB version.

Criticism

The iPhone 4s was reported about problems with the change already used SIM cards. So some users were affected by the exchange of a deteriorated reception, delayed SMS delivery or complete lack of network connection.

After updating to iOS 7 apparently the WLAN and Bluetooth chip from Broadcom did not work properly on some devices. Apple acknowledged the problem, but could not provide a satisfactory solution, according to Golem. Apple swapped affected devices from within the warranty period, however, some replacement units were affected by the problem.

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