Samsung Galaxy S4 GT-I9505 4G Black - smartphones (Single SIM, Android, MicroSIM, EDGE, GPRS, HSPA+, Bar)

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UMTS stands for Universal Mobile Telecommunications System. Based on the GSM standard, it is deemed as a 3G mobile network standard. It has been developed by the 3GPP and its major advantage is the provision of greater bandwidth and spectral efficiency, due to the W-CDMA technology.

Pixels are usually measured in microns (μm). Larger ones are capable of recording more light, hence, will offer better low light shooting and wider dynamic range compared to the smaller pixels. On the other hand, smaller pixels allow for increasing the resolution while preserving the same sensor size. McDonough, Tim (14 March 2013). "Samsung GALAXY S4 launching in select regions with Snapdragon 600 processors". Qualcomm Insider lBog. Qualcomm . Retrieved 16 March 2013.Dawson, Tom (10 April 2013). "A Closer Look at The Nine Sensors inside Samsung's Galaxy S IV". AndroidHeadline. Android News . Retrieved 19 April 2013.

a b c Beavis, Gareth (24 March 2013). "Hands on: Samsung Galaxy S4 review". TechRadar. Future plc . Retrieved 19 April 2013. Davies, Chris (15 May 2013). "Samsung Galaxy S4 already hits 6 million sales". TechRadar. Future plc . Retrieved 16 May 2013. The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the resolution is, the greater the detail of the displayed content. Samsung Launches Galaxy S4 Battery Trade-In Program". En.kioskea.net. 2013-10-17. Archived from the original on 2014-01-04 . Retrieved 2014-08-07.While the front cameras of the Galaxy S3 and Galaxy Note 2, both released in 2012, are only able to capture videos at up to 720p HD resolution, the front camera of the Galaxy S4 allows 1080p Full HD video recording for the first time in any Samsung mobile phone. [27] AT&T's Samsung Galaxy S4 is Receiving Android 5.0.1 Lollipop Update". Android News . Retrieved 9 April 2015.

The S4 also supports High Efficiency Video Coding (HEVC), a next-generation video codec. [9] [10] [55] Kelly, Heather (21 May 2013). "Samsung Galaxy S4 named top smartphone by Consumer Reports". CNN Tech. CNN . Retrieved 14 June 2013. Rowiski, Dan (23 April 2013). "Samsung Galaxy S4: Sometimes, More Is Less [Review]". ReadWrite. SAY Media . Retrieved 14 June 2013. Battery The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices. Capacity

Eli, Nora (26 September 2015). "Samsung S4 Flip Cover". The Verge. Samsung Galaxy Grand . Retrieved 26 September 2015.