A headphone jack, secondary microphone and infrared blaster are located at the top.

In particular, the infrared sensor is used for the device's “Air View” features. Near the top of the device are a front-facing camera, an infrared transmitter for usage as universal remote control, proximity, and ambient light sensors, and a notification LED. At the bottom of the device is a microphone and a micro USB port for data connections and charging it also supports USB-OTG and MHL 2.0. It is slightly lighter and narrower than the Samsung Galaxy S III, with a length of 136.6 mm (5.38 in), a width of 69.8 mm (2.75 in), and a thickness of 7.9 mm (0.31 in). The Samsung Galaxy S4 uses a refined version of the hardware design introduced by the Samsung Galaxy S III, with a rounded, polycarbonate chassis and a removable rear cover. The Galaxy S4's successor, the Samsung Galaxy S5, was announced by Samsung in February 2014 ahead of a release in April of that year.

In total, more than 80 million Galaxy S4 units have been sold, making it the most selling Android-powered mobile phone of all time. It became Samsung's fastest selling smartphone and eventually Samsung's best-selling smartphone, with 20 million sold worldwide in the first two months, and 40 million in the first six months. The S4 was made available in late April 2013 on 327 carriers in 155 countries. The Galaxy S4 is among the earliest phones to feature a 1080p Full HD display, 1080p front camera video recording, and among the few to feature temperature and humidity sensors and a touch screen able to detect a floating finger. The phone's successor, the Samsung Galaxy S5, was released the next year. The T-Mobile version of the Galaxy S4, named the model ( SGH-M919), was released the same month. A hardware variant of the S4 became the first smartphone to support the emerging LTE Advanced mobile network standard (model number GT-i9506). It is the successor to the Galaxy S III, which maintains a similar design, but with upgraded hardware, more sensors, and an increased focus on software features that take advantage of its hardware capabilities-such as the ability to detect when a finger is hovered over the screen, and expanded eye tracking functionality, it was released the previous year. Sales and shippingThe Samsung Galaxy S4 is an Android smartphone produced by Samsung as the fourth smartphone of the Samsung Galaxy S series and was first shown publicly on March 14, 2013, at Samsung Mobile Unpacked in New York City.

DC 2 Unlocker 2 Client Galaxy S4