|Compatible networks||2G: GSM 850 / 900 / 1800 / 1900
3G: HSDPA 850 / 900 / 2100
4G: LTE 800 / 900 / 1800 / 2600
|First released||October 2013|
|Predecessor||Samsung Galaxy Express|
|Dimensions||132.4 x 65.7 x 9.8 mm|
|Weight||134.2g (4.73 oz)|
|Operating system||Android OS v4.2.2 (Jelly Bean OS) with TouchWiz UI|
|System on chip||Qualcomm Snapdragon 400 (MSM8930AB)|
|CPU||1.7 GHz Dual-core Krait 300 CPU|
|Memory||1.5 GB RAM|
|Removable storage||microSD up to 64 GB (Hot-swappable)|
|Data inputs||PLS TFT LCD 4.6 inches, 540x960 resolution (~245 ppi)Multi-touch capacitive touchscreen, 3 push buttons, aGPS, Barometer, Gyroscope, Accelerometer|
|Display||4.6 in (120 mm) diagonal PLS TFT LCD.
540x960 px (245ppi) qHD
|Rear camera||5MP and 720p video recording|
|Front camera||0.3 MP|
|Connectivity||4G, HSPA, Bluetooth 4.0+LE, Wi-Fi, Wi-Fi Hotspot, WI-FI a/b/g/n DLNA, Kies Air, USB 2.0 High-Speed, NFC, S Beam, MHL|
|Other||AllShare, FM radio with RDS and FM recording, S Voice Online services Google Play, Samsung Apps|
The Samsung Galaxy Express 2 (SM-G3815) is a smartphone made by Samsung which was launched in October 2013 featuring a similar design and specifications of the Samsung Galaxy S4 Mini but with a bigger 4.5 inch screen and different cameras.
The Galaxy Express 2 is powered by Android, a Linux-based, open source mobile operating system developed by Google and introduced commercially in 2008. Among other features, the software allows users to maintain customized home screens which can contain shortcuts to applications and widgets for displaying information. Four shortcuts to frequently used applications can be stored on a dock at the bottom of the screen; the button in the center of the dock opens the application drawer, which displays a menu containing all of the apps installed on the device. A tray accessed by dragging from the top of the screen allows users to view notifications received from other apps, and contains toggle switches for commonly used functions. Pre-loaded apps also provide access to Google's various services. The Galaxy Express uses Samsung's proprietary TouchWiz graphical user interface (GUI). The "Nature UX 2.0" used by the Galaxy Express 2 has a more "organic" feel than previous versions, and contains more interactive elements such as a water ripple effect on the lock screen. To complement the TouchWiz interface, and as a response to Apple's Siri, the phone includes the S Voice which is Samsung's version of an intelligent personal assistant. S Voice can recognize eight languages including English, Korean and French. Based on Vlingo, S Voice enables the user to verbally control 20 functions such as playing a song, setting the alarm, or activating driving mode; it relies on Wolfram Alpha for online searches.
The Galaxy Express 2 comes with Android version 4.2.2, named "Jellybean", which employs Google Now, a voice-assistant similar to S Voice, and incorporates other software changes. The update to 4.4.2 KitKat is available through Over-The-Air upgrade or through Samsung Kies.
The Galaxy Express 2 comes with a multitude of pre-installed applications, including standard Android ones like YouTube, Google+, Voice Search, Google Play, Gmail, Map, and Calendar, in addition to Samsung-specific apps such as S Voice, ChatON, Game Hub, Video Hub, Social Hub and Navigation. The user is able to access Google Play, a digital-distribution multimedia-content service exclusive to Android, to download applications, movies, music, TV programs, games, books, and magazines.
The Galaxy Express 2 can access and play traditional media formats such as music, movies, TV programs, audiobooks, and podcasts, and can sort its media library alphabetically by song title, artist, album, playlist, folder, and genre. It also includes Samsung's own proprietary music management and download application called "Music Hub", designed to compete with Apple's iTunes, iCloud, and iTunes Match services. Music Hub's music catalogue contains over 19 million songs.
The phone enables video calling with its 0.3 MP front-facing camera, and with support for the aptX codec, improves Bluetooth-headset connectivity. Texting on the Galaxy Express 2 does not embody any new significant features from other Samsung Galaxy devices. Speech-to-text is aided by the Vlingo and Google's voice-recognition assistant. Not unlike other Android devices, there are a multitude of third-party typing applications available that could complement the Galaxy Express 2's stock keyboard.
The Galaxy Express 2 has 1.5 GB of RAM which comes with 8 GB of internal storage, with a 64 GB version to be available internationally; additionally, microSDXC storage offers a further 64 GB for a potential total of 72 GB.
The Galaxy Express 2 has an 5-megapixel camera which can take 2,592x1,944 resolution photos and record videos in (720p) resolution. Samsung improved the camera's software over that of its predecessor to include zero shutter lag, and Burst Mode and Best Shot, which work together to quickly take numerous photos before the best-judged frame is selected. The phone can also take pictures while recording videos. The rear-facing camera is complemented by a 0.3-megapixel front-facing camera. The phone has LED flash and autofocus.
In addition to the 4.5-inch (110 mm) touchscreen, the Galaxy Express 2 has several physical user inputs, including a home button located below the screen, a volume key on the left side and a power/lock key on the right. At the top there is a 3.5-millimetre (0.14 in) TRRS headphone jack and one of the two microphones on the Galaxy Express 2; the other is located below the home button.
The Galaxy Express 2's li-ion 2,100 mAh battery is said to have a 581-hour standby time or 11 hours of talk time on 3G, compared to 586 hours in standby and 19 hours of talk time on 2G. Built into the battery is near field communication connectivity, which allows users to share map directions and YouTube videos quickly using Wi-Fi Direct (through Android Beam), and perform non-touch payments at shops that employ specially equipped NFC cash registers. To help minimize battery consumption, Samsung has introduced "Smart Stay", an ability to track a user's eyes and turn off whenever the person is not looking at it. The battery can be wirelessly charged using a special charging pad (sold separately) that utilizes magnetic resonance to produce a magnetic field through which electricity could be transferred.
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