The camera of the Galaxy S4 is best suited for delivering great image quality in bright daylight, while both the HTC Oneand the Nokia Lumia 920are optimized for producing great photos in low-light situations such as in bars and discos. A direct comparison with our reference DSLR camera reveals a noticeable blue tintwithin Samsung's pictures. The resulting photos are a little bit over-sharpened with some weak fringing in the corners. Still, these are just details. Overall, this is one of the best smartphone cameras, actually taking pictures with a higher resolution than our digital single lens reflex camera while offering tons of options. The 2-megapixel front camera, on the other hand, yields somewhat grainy and lifeless photos, but its image quality is more than sufficient for its main application, video calls. Camera app and settings Kelly, Heather (21 May 2013). "Samsung Galaxy S4 named top smartphone by Consumer Reports". CNN Tech. CNN . Retrieved 14 June 2013. On 24 June 2013, a variant supporting LTE Advanced (model number GT-i950 6), the first commercially available device to do so, was announced for South Korea. [39] Samsung announces SAFE with Knox, details plans to secure the enterprise Galaxy (hands-on)". Engadget . Retrieved 18 September 2013. While the camera viewfinder user interface of the 2012's Samsung Galaxy S3, Galaxy Note 2, the competing iPhone 5 and iPhone 5s require switching between photo and video modes, the viewfinder of the Galaxy S4 camera software shows the buttons for both photo and video capture simultaneously. The virtual buttons for video recording, photo capture and camera modes have a metallic texture. [27]

Find sources: "Samsung Galaxy S4"– news · newspapers · books · scholar · JSTOR ( August 2014) ( Learn how and when to remove this template message) Samsung Galaxy S4, powerful, intuitive and accessible to the visually impaired | Amóvil". www.amovil.es.

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Networks A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other. GSM Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens. The 35 mm equivalent indicates the focal length at which a full-frame camera will achieve an angle of view that's the same as the one of the camera of the mobile device. It is measured by multiplying the native focal length of the camera by the crop factor of the sensor. The crop factor itself can be determined as the ratio between the diagonal distances of the image sensor in the 35 mm camera and a given sensor. Like the Galaxy S3, the S4 is equipped with an accelerometer sensor, a gyroscope, a front-facing proximity sensor, digital compass and barometer. In addition, an infrared emitterallows - in conjunction with certain apps - the Galaxy S4 to be used as a remote controlfor TVs and numerous other devices. This worked exceptionally well without a long set-up procedure with a Sony Smart TV via the preinstalled "WatchON" app. Unlike the predecessor, the S4 is also equipped with a hall sensor for the S View cover, a self-capacitive [29] touch screen layer for Air View and thermometer and hygrometer sensors, [30] [7] the last two of which only the Galaxy S4 and Galaxy Note 3 out of all historical Samsung flagship devices are equipped with.

Westaway, Luke (2 May 2013). "Samsung defends 16GB S4's mere 8GB of usable storage". CNET UK. CBS Interactive . Retrieved 19 May 2013.The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours. Similar to the CPU, the GPU consists of processing units called cores. They handle the computation of graphics in various applications. A CPU core is the processor unit, which executes software instructions. Presently, besides single-core processors, there are dual-core, quad-core, hexa-core and so on multi-core processors. They increase the performance of the device allowing the execution of multiple instructions in parallel. Information about the height, i.e. the vertical side of the device when it is used in its standard orientation. Wygand, Richard. "samsung galaxy s4 caught fire proof for samsung". YouTube . Retrieved 13 December 2013. [ unreliable source?]